5
HOME
SPECIFICATIONS
7.1
IGNITION TIMING SPARK OCCURRENCE
BATTERY
Size
12 VDC
Type
Sealed
V.O.E.S.
Idle
All M2/M2L models
950-1050 RPM
Connected
Disconnected
20˚ BTDC
Approximately
7.5˚ BTDC
SPARK PLUGS
Size
12 mm
Type
10R12
IGNITION COIL RESISTANCE
Gap
0.038-0.043 in.
0.97-1.09 mm
11-18 ft-lbs
15-24 Nm
Torque Value
Primary Winding
Secondary Winding
19-26 VAC per 1000 engine RPM
Stator Coil Resistance
0.2-0.4 Ohms
REGULATOR
Voltage Output @ 75°F
13.8-15 VDC
Amperes @ 3600 RPM
22 Amps
Marker Lamps
Indicator Lamps
on Instrument
Support
AMPERES
Main Circuit Breaker
30
Ignition Fuse
20
Light Fuse
15
Accessory Fuse
15
Instrument Fuse
15
Odometer
15
BULBS
REQUIRED
WATTS
AMPS
PART
NUMBER
High/Low (replaceable bulb)
1
60/55
5.0/4.58
67969-96Y
Position Lamp
(European models only)
1
4
0.33
67968-96Y
Tail/Stop Lamp
1
5/21
0.42/1.75
68075-94Y
Turn Signal Lamp, Front and Rear
(1 bulb each)
4
10
0.83
68073-94Y
High Beam Indicator
1
2.1
0.15
68024-94
Turn Signal Indicator
2
2.1
0.15
68024-94
Oil Pressure Indicator
1
2.1
0.15
68024-94
Neutral Indicator
1
2.1
0.15
68024-94
Speedometer Illumination
1
1.7
0.14
67421-99Y
Tachometer Illumination
1
1.7
0.14
68073-99Y
LAMP DESCRIPTION
Headlamp
10,000-12,500 ohms
ELECTRICAL SYSTEM
ALTERNATOR
AC Voltage Output
2.5-3.1 ohms
Instruments
2001 Buell M2/M2L: Electrical
7-1
HOME
TORQUE VALUES
ITEM
TORQUE
NOTES
Battery Terminal Bolts
60-96 in-lbs
7-11 Nm
Bank Angle Sensor Mounting
Screw
25-27 in-lbs
2.8-3.1 Nm
page 7-15
Engine Temperature Sensor
10-14 ft-lbs
14-19 Nm
Special Socket Required, page 7-16
Headlamp Retaining Ring and
Bezel Screws
12-14 in-lbs
1.4-1.6 Nm
page 7-49
Headlamp Housing Mounting
Screws
12-14 ft-lbs
16-19 Nm
page 7-49
Ignition Coil Mounting Screws
4-6 ft-lbs
5-8 Nm
page 7-24
12-20 in-lbs
1.4-2.3 Nm
page 7-22
3-5 ft-lbs
4-7 Nm
LOCTITE THREADLOCKER 243 (blue), page 7-57
90-110 in-lbs
10.2-10.4 Nm
LOCTITE THREADLOCKER 242 (blue), page 7-41
11-18 ft-lbs
15-24 Nm
page 7-1
Speedometer Sensor Screw
80-100 in-lbs
9-11 Nm
page 7-59
Starter Battery Positive Cable
Nut
60-85 in-lbs
7-10 Nm
metric, page 7-43
Stator Mounting Screws
30-40 in-lbs
3.4-3.5 Nm
Switchgear Housing Screws
(left side)
25-33 in-lbs
3-4 Nm
metric, page 7-55
Switchgear Housing Screws
(right side)
12-17 in-lbs
1-2 Nm
metric, page 7-54
Timer Plate Studs
15-30 in-lbs
1.7-3.4 Nm
page 7-22
Trigger Rotor Bolt
43-53 in-lbs
4.9-6.0 Nm
LOCTITE THREADLOCKER 243 (blue), page 7-22
Turn Signal Screws (front)
20-23 in-lbs
2.3-2.6 Nm
page 7-51
Turn Signal Screws (rear)
25-28 in-lbs
2.8-3.2 Nm
page 7-52
9-11 ft-lbs
12-15 Nm
page 7-42
Inner Timer Cover Screws
Neutral Indicator Switch
Rotor Mounting Bolts
Spark Plugs
Voltage Regulator Mounting
Screws
7-2
2001 Buell M2/M2L: Electrical
metric, page 7-43
T-27 TORX with retaining compound, replace after
removal, page 7-41
HOME
IGNITION SYSTEM
7.2
MODEL YEAR CHANGE
GENERAL
All 2001 M2/M2L model Buell motorcycles have a new ignition module with two, 12-place connectors, similar in appearance to the ECM. The new ignition module supports the skip
spark/Engine Temperature (overheat protection) function and
the Bank Angle Sensor function.
All 2001 M2/M2L model Buell motorcycles have an Engine
Temperature Sensor located in the rear cylinder head.
All 2001 M2/M2L model Buell motorcycles have a Bank Angle
Sensor to provide input to the ignition module on vehicle lean
angle.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Pop Rivet (2)
Timer Cover
Screw (2)
Inner Cover
Timer Plate Stud (2)
Bolt
Cam Position Sensor
Trigger Rotor
Seal
Gearcase Cover
Spark Plug (2)
Ignition Coil
Front Spark Plug Cable
The vehicle uses a breakerless inductive-discharge ignition
system. The system has both a primary and secondary circuit. The primary circuit consists of the battery, ignition
switch, primary coil winding, computerized ignition timer and
associated wiring. The secondary circuit consists of the secondary coil, spark plugs and associated wiring. See Figure 73
The computerized ignition system contains five assemblies.
14.
15.
16.
17.
18.
19.
20.
Rear Spark Plug Cable
V.O.E.S. Connector [7]
V.O.E.S.
Terminal Pin
Cam Position Sensor Connector [16]
Secondary Lock
Ignition Module Connectors [10] and
[11]
21. Ignition Module
22. Screw (2)
23. Bank Angle Sensor
16
15
23
13
14
17
19
12
11
18
9
8
21
7
20
22
10
6
3
5
4
b0384a7x
1
2
Figure 7-1. Ignition System Components
2001 Buell M2/M2L: Electrical
7-3
HOME
Ignition Module
The ignition module is located on the vehicle frame next to
the fuse block on the right side of the motorcycle. The module
has two functions. First, it computes the spark advance for
proper ignition timing. Second, it opens and closes the lowvoltage circuits between the battery and ignition coil to produce high-voltage discharge to the spark plugs.
Vacuum-Operated Electric Switch
The vacuum-operated electric switch (V.O.E.S.) is attached to
the carburetor. The V.O.E.S. senses intake passage vacuum
through a carburetor hose connection. The switch is open
during acceleration and high engine load conditions (low vacuum) and is closed during deceleration and low engine load
conditions (high vacuum). The ignition module is programmed with two spark advance curves to meet varying
engine loads.
The high-vacuum curve, selected for maximum spark
advance under normal light-load cruising conditions, provides
improved fuel economy and performance. The low-vacuum
curve (retarded spark) minimizes spark knock while maintaining performance under high-load conditions (acceleration and
highway driving). The ignition module selects the proper
curve when it receives an open or closed electrical signal
from the V.O.E.S. This system ensures correct timing to suit
starting and high-speed requirements.
A single ignition coil fires each spark plug independently on
the compression stroke of each cylinder. The spark plug in
the front cylinder fires at the end of that cylinder’s compression stroke, thereby igniting the air/fuel mixture. The same
sequence occurs at the end of the rear cylinder’s compression stroke (thereby igniting the air/fuel mixture in the rear
cylinder).
Bank Angle Sensor
The Bank Angle Sensor is located just forward of the ignition
module on the right side of the motorcycle. The Bank Angle
Sensor provides input to the ignition module on whether or
not the vehicle lean angle is greater than 55 degrees. If vehi-
7-4
2001 Buell M2/M2L: Electrical
cle lean angle exceeds 55 degrees, the Bank Angle Sensor
will shut off power to the ignition.
Engine Temperature Sensor
The Engine Temperature Sensor is located in the rear cylinder head. With the Engine Temperature Sensor, the ignition
module is now able to sense when overheating is about to
occur and it will automatically reduce power (“skip spark” spark plugs fire every other engine revolution) until the operating temperature returns to normal. The rider may experience this condition during extended high speed operation
with high ambient temperatures or during extended periods at
idle.
Rotor and Cam Position Sensor
The rotor and cam position sensor are located in the gearcase cover on the right side of the motorcycle. The rotor is
mounted on the camshaft and operates at one-half crankshaft speed. As the rotor turns, slots in its outside diameter
break the magnetic field of a Hall-effect device mounted on
the cam position sensor. The output of the Hall-effect device
is a logic-type signal that corresponds to the timing information from the spinning rotor. This technique gives accurate
timing information down to “0” speed.
The ignition system produces a spark near top dead center
(TDC) for starting. At RPM’s and loads above this, the system
produces a spark 13˚-45˚ before TDC. The whole timing program can be shifted by mechanical rotation of the cam position sensor. See 1.18 IGNITION TIMING.
The ignition module has added protection against transient
voltages, continuous reverse voltage protection and damage
due to jump starts. The system will operate down to 5.7 VDC.
The ignition module is fully enclosed to protect it from vibration, dust, water and oil. The module is not repairable.
Replace the unit if it fails.
See the wiring diagrams at the end of this section for additional information on ignition system circuits.
HOME
b750aign
IGNITION
2001 Buell M2/M2L: Electrical
7-5
Figure 7-2. Ignition System Circuit
MODULE
HOME
TROUBLESHOOTING
Perform the following tests if the engine will not start, or if
hard starting or missing indicates a faulty operating ignition
system.
Check for Ignition Spark
1.
2.
3.
4.
5.
6.
7-6
Disconnect spark plug cables from spark plugs. Check
condition of plugs and cables. Clean or replace as necessary.
Insert a conductive adapter into spark plug cable end.
Establish a 0.1875 in. (4.8 mm) gap between adapter
and cylinder head.
Turn ignition key switch to IGN and engine stop switch
to ON.
With transmission in neutral, press electric starter button.
Check for a spark across plug electrode gap.
a. If a spark is produced, problem is not in electronic
system or coil. Check carburetion, enrichener and
spark plugs.
b. If no spark is produced, check battery voltage and
battery connection. Battery voltage must be at least
12.8 VDC. Charge battery if voltage is low.
Verify that the ground strap from the swingarm mount
block to the frame is in good condition. If there is still no
spark, then perform the tests under NO IGNITION
SPARK.
2001 Buell M2/M2L: Electrical
No Ignition Spark
See Figure 7-6 To conduct the following tests, it will be necessary to assemble a set of jumper wires.
Cut two wires of ample length to reach from a good ground
connection to the negative terminal of the coil primary. If a
suitable capacitor is not available, use a condenser (such as
the type used in earlier breaker point ignition systems).
When conducting Steps 3 and 5 of the following spark tests,
connect a spare spark plug to one of the plug wires and lay
the spark plug on the engine cylinder head. During the testing
procedures, check for spark across the spark plug electrodes.
xlhinsert1
0.33 MFD capacitor
16 ga. wire
Figure 7-3. Test Jumper
HOME
No Spark At Spark Plug (Part 1 of 8)
CONDITION: Sidestand up, key ON and transmission in neutral
Remove seat and check ignition fuse.
Is fuse OK?
YES
1
NO
Attach Breakout Box (HD-42682) to
Ignition Module. Check for 12 volts on
ECM
connector [10] Pin 1 (+) and Pin 2 (-).
Voltage present?
NO
Replace fuse.
7270
Check for continuity to
ground on [10] Pin 2.
Continuity present?
YES
Go to next page
7271
YES
NO
Check for 12 volts
on ignition relay
Terminal 87 (GY).
Voltage present?
Repair open.
7272
Check for continuity to
ground on ignition relay
Terminal 85 (TN/W).
Continuity present?
NO
YES
STOP
NO
Repair open between Ignition
Module and ignition relay.
YES
Diagnose ignition interlock
circuit. See 7.11 STARTER
INTERLOCK and continue
until problem is solved.
7273
Check for 12 volts
on ignition relay
Terminal 30 (GY/O).
Voltage present?
YES
NO
Check for 12 volts
on ignition relay
Terminal 86 (W/BK).
Voltage present?
Repair open on
(GY/O) wire
between ignition
relay and fuse.
7274
YES
NO
Replace ignition relay.
See 7.11 STARTER
INTERLOCK.
Check for 12 volts
on right handlebar connector [22] GY/O wire.
Voltage present?
7276
YES
NO
Repair open on W/BK
wire between connector
[22] and ignition relay.
Replace handlebar
switch assembly.
7278
7277
2001 Buell M2/M2L: Electrical
7-7
HOME
No Spark At Spark Plug (Part 2 of 8)
W/BK
+
W/BK
Continuous or No Spark at Spark Pliug
PK
•Ignition On.
•Multimeter Red Wire To
White/Black Wire On Coil,
Black Wire To Ground.
•Meter Should Register 12v ±
One Volt.
PK
To tach
NO
YES
Measure Voltage At Connector [22B] Pin 4 (GY/O).
Battery Voltage Present?
Go To Next Page
NO
YES
With Connector [22] Mated And
Ignition On, Measure Voltage At
Connector [22B], Pin 3 (W/BK).
Battery Voltage Present?
Repair Open (GY/O) Wire
Between [22] and Fuse.
5002
NO
YES
Repair Open (W/BK) Wire
Between Coil and [22B].
Repair / Replace Engine
Stop Switch or Wiring.
5002
5124
Wire Harness Connectors
No.
[22]
7-8
Description
RT Handlebar
Switch
Type
6 - Place Deutsch (BK)
2001 Buell M2/M2L: Electrical
Location
Under Fuel Tank
HOME
No Spark At Spark Plug (Part 3 of 8)
YES
W/BK
+
W/BK
•Remove Pink (Module) Wire From Coil Terminal.
•Ignition Switch On.
•Multimeter Red LeadTo (PK) Wire Terminal.
PK
12VDC at terminal?
-
YES
NO
Replace coil.
5010
W/BK
• Pink (Module) Wire Disconnected.
• Ignition On.
• Jumper Wire – Connect Capacitor Wire To
Pink Wire Terminal.*
• Connect Both Wires To Common Ground.
• Momentarily Touch Ground Wire To Pink Wire
Terminal.
Is There A Spark At Plug When You Remove
The Wire?
W/BK
PK
-
*Perform Coil Resistance Check If Capacitor Is Not Available
YES
Go To Next Page
+
Jumper
NO
Replace Coil.
5012
2001 Buell M2/M2L: Electrical
7-9
HOME
No Spark At Spark Plug (4 of 8)
• Ignition On
• Measure Voltage At Connector [10B] - Multimeter Red Lead To Pin 6 (PK) And Black Lead
To Pin 2 (BK)
Is 12VDC ± 1.0 VDC Present?
NO
YES
Check Wire Continuity
Between Connector
[10B] Pin 6 (PK) And
Coil Terminal (PK).
Continuity Present?
NO
YES
Install Breakout Box
Measure Voltage Between LTGN/GY
GY (Pin 8) And BK (Pin 2).
Is Voltage 0.6-1.1 VDC?
7-10
Locate And Repair
Short To Ground On
(PK) Wire
5003
5003
YES
NO
See Page 7-12.
See Next Page.
2001 Buell M2/M2L: Electrical
Repair Open (PK) Wire
HOME
No Spark At Spark Plug (Part 5 of 8)
Is Bank Angle Sensor
Connected?
NO
YES
Reconnect.
5004
Remove Bank Angle Sensor. Disconnect Connector [134].
Measure Voltage On [134B] Between Socket A, LT GN/GY And Socket B, BK
3.0-3.5 VDC
See Next Page
11-13 VDC
Repair Short
On LT GN/
GY Wire.
5007
* To avoid damage to terminals,
remove Bank Angle Sensor
before disconnecting connector
[134]. Use Harness Connector
Adapter Kit HD-41404,Gray
male probe and patch cord
0 VDC
Check Continuity Between Socket A, LT GN/GY On
Connector [134B] And Socket 10, BK On Breadkout
Box.
Continuity Present?
NO
YES
Repair Open In
LT GN/GY Wire.
5007
Check Continuity To Ground On BK
Wire, Socket B, Connector [134B].
Is Continuity Present?
NO
YES
Repair Open
Ground Wire.
5007
Check Continuity To Ground On LT GN/GY
Wire, Socket A, Connector [134B].
Is Continuity Present?
NO
YES
Bank Angle Sensor
Repair Short To Ground
On LT GN/GY Wire.
5007
Inspect Module Harness For
Damage. Repair If Necessary.
If Harness Is Not Damaged,
Replace Ignition Module.
5009
Connector [134]
2001 Buell M2/M2L: Electrical
7-11
HOME
No Spark At Spark Plug (Part 6 of 8)
3.0-3.5 VDC
Measure Voltage On Connector [134B] Between Socket C,
(GY), And Socket B, (BK).
Is Voltage 11-13 VDC?
YES
Is Bank Angle Sensor Correctly
Installed?
NO
Repair Open In (GY) Wire Between
Bank Angle Sensor And Ignition Fuse
5007
YES
NO
Are Ferrous Metals Located
Within 1/4” Of Sides, Face, Or
Top Of Bank Angle Sensor?
Install Properly
YES
NO
Return To Original Configuration.
Replace Bank
Angle Sensor.
5013
7-12
2001 Buell M2/M2L: Electrical
HOME
No Spark At Spark Plug (Part 7 of 8)
1
Disconnect cam position sensor connector [14].
Turn ignition ON.
Connect voltmeter across Terminal 1 wire (+) and
Terminal 3 wire (-) of connector [14B]. Is voltage
5.0 ± 0.25 VDC?
YES
NO
Reconnect cam position sensor connector
[14]. Using Breakout Box, measure voltage
between Pin 3 (+)
and Pin 8 (-) of connector [11] (gray)
while cranking engine. Is voltage
0 or 5 VDC when engine is not cranking
and 2-3 VDC when cranking?
2
Using Breakout Box, measure voltage
between Pin 1 and Pin 8 of Breakout Box
(gray). Is voltage 5.0 ± 0.25 VDC?
2
YES
NO
With DVOM shake harness to check
for intermittents.
Intermittents present?
Check for continuity on
GN/W wire between connector
[14B] Terminal 2 and
[11] (gray) Terminal 3 on
Breakout Box. Is continuity
present?
YES
NO
Locate and repair open in R/W
wire or BK/W wire between
connectors [11] and [14].
Disconnect Breakout Box [11]
from harness, leaving ignition
module connected. Measure
voltage between Pin 1 and
Pin 8 of ignition module [11A].
Is 5.0 VDC present?
7942
YES
5 volts.
YES
12 volts.
NO
Locate and
repair R/W short
to ground.
Locate and
repair R/W short
to voltage.
Replace ignition
module. See
7.7 IGNITION
MODULE.
YES
Repair as
necessary.
7943
7944
7948
7947
NO
Remove gearcase cover
and check for mechanical
failure.
YES
NO
STOP
Locate and repair open
on GN/W wire between
[14B] and [11B].
7941
7943
Go to Next Page.
2001 Buell M2/M2L: Electrical
7-13
HOME
No Spark At Spark Plug (Part 8 of 8)
Check wires in cam position sensor connector
[14A] for correct
locations. Wires correctly located?
3
YES
NO
Remove cam position sensor.
Observe rotor while ranking
engine. Does rotor turn?
Correctly
locate wires.
YES
NO
Inspect rotor.
Is rotor damaged or loose?
Remove gearcase cover and
inspect for mechanical failure.
7941
3
YES
NO
Tighten or replace
rotor.
Replace cam position sensor.
Retest.
Problem still exist?
5381
4
YES
NO
Replace ignition module. See
7.7 IGNITION MODULE.
System OK.
7946
7969
7-14
2001 Buell M2/M2L: Electrical
HOME
VACUUM-OPERATED ELECTRIC SWITCH (V.O.E.S)
ADJUSTMENT/TESTING
7.3
b0400x7x
Refer to 1.19 VACUUM-OPERATED ELECTRIC SWITCH
(V.O.E.S) for test procedures.
REMOVAL
1.
Remove seat and fuel tank. See 4.5 FUEL TANK.
2.
See Figure 7-15 Disconnect V.O.E.S. connector [7] from
wiring harness.
3.
Remove V.O.E.S. from carburetor hose.
INSTALLATION
1.
See Figure 7-15 Place a new V.O.E.S. on carburetor
hose.
2.
Attach V.O.E.S. connector [7] to wiring harness.
Figure 7-4. V.O.E.S.
11
1WARNING
WARNING
After installing seat, pull upward on front of seat to be
sure it is locked in position. If seat is loose, it could shift
during vehicle operation and startle the rider, causing
loss of control which could result in death or serious
injury.
3.
b0705a7x
Install fuel tank and seat. See 4.5 FUEL TANK.
[7]
[14]
IGNITION
[7] wire
MODULE
TERMINATION
1
Ignition Module
2
Splice number one
Figure 7-5. V.O.E.S. Wiring
2001 Buell M2/M2L: Electrical
7-15
HOME
BANK ANGLE SENSOR
7.4
REMOVAL
7986
1.
Remove tail section. See 2.34 TAIL SECTION.
2.
See Figure 7-16 Locate bank angle sensor below left
side of tail section. Unplug sensor connector [134].
3.
Remove screw, locknut and sensor from frame.
INSTALLATION
1.
Position bank angle sensor on frame mounting tab. Make
sure locating post on sensor engages hole in mounting
tab.
2.
Install bank angle sensor to mounting tab with screw and
new locknut. Tighten screw to 25-27 in-lbs (2.8-3.1 Nm).
3.
See Figure 7-16 Plug connector [134] into bank angle
sensor.
4.
Install tail section. See 2.34 TAIL SECTION.
Bank Angle
Sensor
Connector
[134]
Figure 7-6. Bank Angle Sensor
7-16
2001 Buell M2/M2L: Electrical
HOME
ENGINE TEMPERATURE SENSOR
7.5
REMOVAL
1.
Remove fuel tank. See 4.5 FUEL TANK.
b0801x4x
CAUTION
Do not pull on engine temperature sensor wiring. Excess
strain to sensor wiring will cause sensor damage.
2.
See Figure 7-17 Unplug 1-place connector [90] above
rear cylinder head.
3.
Slide rubber boot up and remove sensor from rear cylinder head using ET Sensor Socket or equivalent.
Engine Temperature
Sensor Location
(Rear Cylinder)
INSTALLATION
CAUTION
Do not pull on engine temperature sensor wiring. Excess
strain to sensor wiring will cause sensor damage.
1.
See Figure 7-17 Screw sensor into rear cylinder head
with special ET sensor socket. Make sure wire is in cutout portion (slot) of socket to prevent damage. Tighten
ET sensor to 10-14 ft-lbs (14-19 Nm).
2.
Install rubber boot to ET Sensor wire (push wire through
hole in boot) with smaller OD side towards sensor.
3.
Push rubber boot down sensor wire towards cylinder
head until it seats in hole on top of ET sensor. NOTE:
Orient the rubber boot so the flat on the boot is towards
the left side of the motorcycle
4.
Route ET sensor wire lead through opening at rear of
cylinder head, under rocker box and cover and connect
ET sensor 1-place connector [90] to wiring harness.
5.
Install fuel tank. See 4.5 FUEL TANK.
Figure 7-7. Engine Temperature Sensor Location
b0817x3x
ET Wire
Lead
ET Sensor
Socket
Slot
Figure 7-8. ET Sensor Removal/Installation
2001 Buell M2/M2L: Electrical
7-17
HOME
IGNITION/HEADLAMP KEY SWITCH
GENERAL
7.6
6973
4
3
11
1WARNING
WARNING
DO NOT modify the ignition/headlamp switch wiring to
circumvent the automatic-on headlamp feature. Visibility
is a major concern for motorcyclists. Failure to have
proper headlamp operation could result in death or serious injury.
2
5
6
See Figure 7-18 The three-position combination ignition/
headlamp key switch is not repairable. Replace the unit if it
fails.
Switch positions are explained in the table below.
When turning off the ignition, verify that the key is removed in
the OFF position and that the lights are not left on. If the rider
stops the engine and inadvertently removes the key in the
PARK position, the battery will be drained of its charge if the
vehicle is left standing too long.
1
1.
2.
3.
4.
5.
6.
Instrument Support
Ignition Switch
OFF Position
P (Park) Position
IGNITION Position
Ignition Switch Face Nut
Figure 7-9. Ignition/Headlamp Key Switch
NOTE
The key locks the ignition system and is removable in both
the OFF and P (PARK) positions. The PARK position is
located between the OFF and IGNITION positions and allows
the rider to remove the key while leaving the lights on. When
the key is placed in the PARK position, several indicator
markers are or can be activated. See the table to the right.
REMOVAL
11
1WARNING
WARNING
To protect against shock and accidental start-up of vehicle, disconnect the negative battery cable before proceeding. Inadquate safety precautions could result in
death or serious injury.
1.
Disconnect negative battery cable from battery.
2.
Remove four screws and washers to detach windscreen
from mounting brackets. See 2.35 WINDSCREEN.
3.
See Figure 7-19 Disconnect ignition key switch connector [8] from main wiring harness.
4.
See Figure 7-18 Remove ignition switch face nut (6).
Remove ignition key switch (2) from behind dash panel.
LABEL
NAME
IGN.
LAMPS
REMOVE
KEY
OFF
off
off
off
yes
P
park
off
yes
IGN
ignition
on
See
the
table to the
right
7-18
2001 Buell M2/M2L: Electrical
no
ITEM
P
IGN
Headlamp Position Marker
(European models only)
on
on
Headlamp High/Low Beam
off
on
Speedometer Illumination Lamp
on
on
Stop Lamp
can be activated
Front and Rear Turn Signals
can be activated
Horn
can be activated
HOME
INSTALLATION
2.
See Figure 7-19 Attach ignition key switch connector [8]
to main wiring harness.
3.
See Figure 7-18 Tighten face nut (6) to secure switch
within bracket.
4.
Install negative battery cable to battery. Tighten battery
terminal hardware to 60-96 in-lbs (7-11 Nm).
R/BK
D
C
Loosely install face nut (6).
R/BK
c.
R
Apply LOCTITE THREADLOCKER 243 (blue) to
ignition key switch face nut.
B
b.
A
See Figure 7-18 From behind dash panel, insert
ignition key switch (2) into hole. The word “TOP”
stamped on the switch body should face upward
toward the lettering on the switch position decal.
R
a.
R/GY
Install ignition key switch.
R/GY
1.
b0720x7x
[8]
R/BK
11
1WARNING
WARNING
Check for proper headlamp operation before riding
motorcycle. Visibility is a major concern for motorcyclists. Failure to have proper headlamp operation could
result in death or serious injury.
5.
6.
Check ignition key switch for proper operation. If operation fails, reread procedure and verify that all steps were
performed.
a.
Turn ignition key switch to OFF. Check all functions
listed in the table on page 5-18
b.
Turn ignition key switch to IGN. Start motorcycle
using procedure under 4.2 CARBURETOR.
c.
Turn ignition key switch to LOCK.
Install four screws and washers to attach windscreen to
mounting brackets. See 2.35 WINDSCREEN.
IGN
R/GY
P
R
OFF
Key Switch
[8] wire
TERMINATION
A
Master Circuit Breaker
B
Accessories Fuse in Fuse Block
C
Ignition Fuse in Fuse Block
D
Empty
Figure 7-10. Ignition Key Switch Connector [8]
2001 Buell M2/M2L: Electrical
7-19
HOME
IGNITION MODULE
MODEL YEAR CHANGE
7.7
[10]
7983
All 2001 M2/M2L Model Buell motorcycles have a new ignition module with two, 12-place connectors. The new Ignition
Module supports the skip spark feature.
[11]
The ignition module is located under the tail section. The ignition module is not repairable. Replace the unit if it fails.
See 7.2 IGNITION SYSTEM for information on the function
and testing of the ignition module.
REMOVAL
1.
Ignition
Module
Screws (2)
Washers (2)
Remove seat and tail section. See 2.34 TAIL SECTION.
11
1WARNING
WARNING
To protect against shock and accidental start-up of vehicle, disconnect the negative battery cable before proceeding. Inadequate safety precautions could result in
death or serious injury.
2.
Disconnect the negative (-) battery cable from the battery.
3.
Cut cable tie that secures main wire harness to side
frame member.
4.
See Figure 7-20 Disconnect ignition module connectors
[10] and [11] from main wiring harness.
5.
See Figure 7-20 Remove two screws and washers to
detach ignition module from frame.
INSTALLATION
1.
See Figure 7-20 Fasten ignition module to frame using
two screws and washers.
2.
See Figure 7-20 Attach ignition module connectors [10]
and [11] to main wiring harness.
Figure 7-11. Ignition Module
b0705a7a
IGNITION
[10]
TERMINATION
MODULE
[11]
TERMINATION
1
Splice #21
1
Cam Position Sensor
2
Splice #20
2
V.O.E.S.
3
Empty
3
Cam Position Sensor
4
Empty
4
Empty
5
Empty
5
Empty
6
Coil
6
Empty
3.
Secure main wiring harness to frame member with a
new cable tie.
7
Empty
7
Empty
8
Empty
8
Splice #22
4.
Install negative (-) battery cable to the battery. Tighten
battery terminal hardware to 60-96 in-lbs (7-11 Nm).
9
Engine Temp Sensor
9
Empty
10
Bank Angle Sensor
10
Empty
11
Splice #20
11
Empty
12
Empty
12
Empty
11
1WARNING
WARNING
After installing seat, pull upward on front of seat to be
sure it is locked in position. If seat is loose, it could shift
during vehicle operation and startle the rider, causing
loss of control which could result in death or serious
injury.
5.
Install tail section and seat. See 2.34 TAIL SECTION.
6.
Test engine for proper ignition system operation.
7-20
2001 Buell M2/M2L: Electrical
Figure 7-12. Ignition Module Connectors [10] and [11]
HOME
CAM POSITION SENSOR AND ROTOR
GENERAL
7.8
6256
See Figure 7-3 The cam position sensor (7) and trigger rotor
(8) are located in the gearcase cover (10) on the right side of
the vehicle. The rotor is mounted on the camshaft and operates at one-half crankshaft speed. The sensor wiring is connected to the ignition module (21) wiring harness. See 7.2
IGNITION SYSTEM for information on the function, testing
and adjustment of the cam position sensor and trigger rotor
assembly.
Connector [16]
REMOVAL
11
1WARNING
WARNING
Figure 7-13. Cam Position Sensor Connector [16]
To protect against shock and accidental start-up of vehicle, disconnect the negative battery cable before proceeding. Inadequate safety precautions could result in
death or serious injury.
1.
Disconnect negative battery cable from battery.
2.
Remove sprocket cover. See 2.30 SPROCKET COVER.
3.
Cut cable straps holding cam position sensor wiring at
the following locations:
4.
a.
Starter.
b.
Edge of gearcase cover.
c.
Oil line.
3
4
See Figure 7-21 Disconnect cam position sensor wiring
at connector [14] located behind the starter motor.
2
1
5.
See Figure 7-20 Note position of each cam position sensor wiring terminal in plug end of connector.
6.
See Figure 7-3 Remove connector terminal pins (18).
See B.2 DEUTSCH ELECTRICAL CONNECTORS.
7.
Remove timer cover.
1.
2.
3.
4.
Timer Plate Stud (2)
Sensor Wiring
Cam Position Sensor
Scribe Mark
b0313a7x
Figure 7-14. Marking Ignition Timing
8.
See Figure 7-21 To obtain approximate ignition timing
during installation, scribe alignment marks (4) across
cam position sensor (3) in two places.
Tap remaining rivet shafts inboard through holes in
timer cover (2) and inner cover (4).
9.
See Figure 7-3 Remove timer plate studs (5). Carefully
remove cam position sensor (7). Remove bolt (6) and
trigger rotor (8).
c.
Remove timer cover. Remove inner cover screws (3)
and inner cover (4).
10. Carefully remove camshaft oil seal (9) if damaged or if
there is any evidence of oil leakage past the seal.
d.
Carefully remove any remaining pieces of rivets
from gearcase cover timer bore.
a.
Drill off heads of outer timer cover pop rivets (1)
using a 3/8 in. (9.525 mm) drill bit.
b.
2001 Buell M2/M2L: Electrical
7-21
HOME
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Pop Rivet (2)
Timer Cover
Screw (2)
Inner Cover
Timer Plate Stud (2)
Bolt
Cam Position Sensor
Trigger Rotor
Seal
Gearcase Cover
Spark Plug (2)
Ignition Coil
Front Spark Plug Cable
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
Rear Spark Plug Cable
V.O.E.S. Connector [7]
V.O.E.S.
Terminal Pin
Cam Position Sensor Connector [14]
Secondary Lock
Ignition Module Connectors [10] and [11]
Ignition Module
Screw (2)
Bank Angle Sensor
16
15
23
13
14
17
19
12
11
18
9
8
21
7
20
22
10
3
6
5
4
b0384a7x
1
2
Figure 7-15. Ignition Components
INSTALLATION
1.
See Figure 7-3 With the lipped side facing inboard, install
new camshaft oil seal (9) into gearcase cover (10), if
removed. Press seal into position until flush with surface
of timer bore.
2.
Install trigger rotor (8).
7-22
2001 Buell M2/M2L: Electrical
a.
Apply LOCTITE THREADLOCKER 243 (blue) to
threads of bolt (6).
b.
Position trigger rotor (8) onto end of camshaft aligning notch with camshaft slot.
c.
Install bolt (6) to secure rotor. Tighten to 43-53 inlbs (5-6 Nm).
HOME
3.
Install cam position sensor (7) and timer plate studs (5).
Rotate cam position sensor to its previously marked
position to obtain approximate ignition timing.
b0418x7x
CAUTION
See Figure 7-23 Route sensor wires about 1.5 in. (38 mm)
forward of secondary drive belt and sprocket. If wires are
routed too far to the rear of this position, they could contact the moving secondary drive belt and/or sprocket
resulting in damage to sensor wiring.
4.
5.
Route sensor wiring leads.
a.
Downward through hole (7 o’clock position) in timer
bore of gearcase cover.
b.
Upward through bottom opening between right
crankcase half and rear of gearcase cover.
c.
Route wiring in front of tower shaft behind gearcase
cover. Route wires upward to starter motor.
d.
Cable strap wiring.
See Figure 7-23 Install sensor wiring terminals into correct positions in plug end of connector [14]. R/W, GN/W
and BK/W wires of plug end (from cam position sensor)
must match same color wires in receptacle end of connector (from ignition module wiring harness). Install pin
terminals. See B.2 DEUTSCH ELECTRICAL CONNECTORS.
6.
See Figure 7-3 Attach cam position connector (18) [14].
7.
Check ignition timing. See 1.18 IGNITION TIMING.
8.
Tighten timer plate studs (5) to 15-30 in-lbs (1.7-3.4 Nm).
9.
Install inner cover (4) using screws (3). Tighten to 12-20
in-lbs (1.4-2.3 Nm).
Figure 7-16. Routing Sensor Wires
b0416a7x
[134]
[14]
CAUTION
Use only H-D Part No. 8699 rivets to secure outer timing
cover. These rivets are specially designed so that no
rivet end falls off into the timing compartment. Use of
regular rivets can damage ignition system components
and may allow water to enter the timing compartment.
10. Secure timer cover (2) to inner cover (4) using new
rivets (1).
11. Install negative battery cable to battery. Tighten battery
terminal hardware to 60-96 in-lbs (7-11 Nm).
IGNITION
MODULE
Figure 7-17. Connecting Sensor Wires
2001 Buell M2/M2L: Electrical
7-23
HOME
IGNITION COIL
7.9
GENERAL
6184
See Figure 7-24 The ignition coil is mounted on the frame
underneath the fuel tank and behind the steering neck.
See Figure 7-3 The ignition coil (12) is a pulse-type transformer. Internally, the coil consists of primary and secondary
windings with a laminated iron core. The contents are sealed
in a waterproof insulating compound. The ignition coil is not
repairable. Replace the unit if it fails.
The low-voltage ignition primary circuit consists of the coil primary winding, ignition module (22) and battery. When the circuit is closed, current flows through the coil primary winding
creating a strong magnetic field in the iron core of the ignition
coil.
When the ignition module receives a signal from the cam
position sensor (7) and trigger rotor (8), the ignition module
interrupts (opens) the ignition primary circuit, which causes
the magnetic field in the coil core to collapse.
Figure 7-18. Ignition Coil
The collapsing magnetic field induces a high-voltage electrical discharge in the ignition secondary circuit, which consists
of the coil secondary winding, spark plug cables and spark
plugs (11). The high-voltage discharge produces a spark to
bridge the electrode gap of each spark plug.
6257
The ignition coil fires both spark plugs simultaneously. In one
spark plug, the spark jumps from the center electrode to the
outer electrode, but on the other plug, the spark jumps in the
reverse direction (from the outer electrode to the center electrode).
TROUBLESHOOTING
Follow the troubleshooting procedures listed under 7.2 IGNITION SYSTEM if the engine will not start, is difficult to start or
runs roughly. Also check condition of spark plug cables. Insulation on cables may be cracked or damaged allowing high
tension current to short to metal parts. This problem is most
noticeable when cables are wet.
If poor starting/running condition persists, check resistance of
ignition coil primary and secondary windings using an ohmmeter.
Ignition Coil Primary Circuit Test
Figure 7-19. Ignition Coil Primary Resistance Test
Ignition Coil Secondary Circuit Test
1.
Remove ignition coil.
2.
Set ohmmeter scale to RX1K.
3.
See Figure 7-25 Place multimeter wires on secondary
coil windings.
4.
Check for secondary coil winding resistance.
1.
Remove ignition coil.
2.
Set ohmmeter scale to RX1.
3.
See Figure 7-24 Place multimeter wires on primary coil
windings.
a.
Normal resistance range is 10,000-12,500 ohms.
Check for primary coil winding resistance.
b.
See TEST RESULTS on the next page if resistance
is not within normal operating range.
4.
a.
Normal resistance range is 2.5-3.1 ohms.
b.
See TEST RESULTS on the next page if resistance
is not within normal operating range.
7-24
2001 Buell M2/M2L: Electrical
HOME
Test Results
6258
1.
A low resistance value indicates a short in the coil winding. Replace coil.
2.
A high resistance value might indicate that there is some
corrosion/oxidation of the coil terminals. Clean the terminals and repeat resistance test. If resistance is still high
after cleaning terminals, replace coil.
3.
An infinite ohms (∞ or no continuity) resistance value
indicates an open circuit (a break in the coil winding).
Replace coil.
REMOVAL
11
1WARNING
WARNING
To protect against shock and accidental start-up of vehicle, disconnect the negative battery cable before proceeding. Inadequate safety precautions could result in
death or serious injury.
1.
Disconnect negative battery cable from battery.
2.
Remove seat and fuel tank. See 4.5 FUEL TANK.
3.
See Figure 7-25 Disconnect spark plug cables from coil
plug posts (4, 5).
4.
Detach wires from coil terminals (2, 3).
5.
Remove two screws and washers (1). Coil will drop from
frame mounts.
Figure 7-20. Ignition Coil Secondary Resistance Test
b0357x7x
2
1
5
4
INSTALLATION
1.
See Figure 7-25 Attach coil to frame with screws and
washers (1). Tighten to 4-6 ft-lbs (5-8 Nm).
2.
Attach wires at coil terminals.
3.
a.
Connect PK wire to forward terminal (2).
b.
Connect W/BK wire to rear terminal (3).
Front Wheel
1
3
1.
2.
3.
4.
5.
Screw and Washer (2)
PK Wire Terminal
W/BK Wire Terminal
Rear Cylinder Spark Plug Post
Front Cylinder Spark Plug Post
Figure 7-21. Coil Viewed From Above
Connect spark plug cables to ignition coil. Longer cable
attaches to rear post (4) and rear cylinder spark plug.
11
1WARNING
WARNING
After installing seat, pull upward on front of seat to be
sure it is locked in position. If seat is loose, it could shift
during vehicle operation and startle the rider, causing
loss of control which could result in death or serious
injury.
4.
Install fuel tank and seat. See 4.5 FUEL TANK.
5.
Install negative battery cable to battery. Tighten battery
terminal hardware to 60-96 in-lbs (7-11 Nm).
2001 Buell M2/M2L: Electrical
7-25
HOME
SPARK PLUG CABLES
GENERAL
7.10
6601
Spark Plug
Connection
Resistor-type high-tension spark plug cables have a carbonimpregnated fabric core, instead of solid wire, for radio noise
suppression and improved reliability of electronic components. Use the exact replacement cable for best results.
Coil
Connection
REMOVAL
11
1WARNING
WARNING
Never disconnect a spark plug cable with the engine running. If you disconnect a spark plug cable with the
engine running, you may receive a severe electric shock
from the ignition system which could result in death or
serious injury.
Figure 7-22. Spark Plug Cable
6602
4
1
CAUTION
When disconnecting each spark plug cable from its
spark plug terminal, always grasp and pull on the rubber
boot at the end of the cable assembly (as close as possible to the spark plug terminal). Do not pull on the cable
portion itself. Pulling on the cable will damage the
cable’s carbon core.
3
2
Disconnect spark plug cables from ignition coil and spark
plug terminals. Inspect all removed cables for damage.
INSPECTION
1.
See Figure 7-26 Inspect spark plug cables. Replace
cables that are worn or damaged.
a.
Check for cracks or loose terminals.
b.
Check for loose fit on ignition coil and spark plugs.
2.
Check cable boots/caps for cracks or tears. Replace
boots/caps that are worn or damaged.
3.
See Figure 7-26 Check spark plug cable resistance with
an ohmmeter. Replace cables not meeting resistance
specifications.
a.
1625-3796 ohms for 6.5 in. (165 mm) cable.
b.
5000-11,680 ohms for 20 in. (508 mm) cable.
INSTALLATION
1.
Connect front spark plug cable to ignition coil and spark
plugs.
2.
Connect rear spark plug cable to spark plug. Rotate
spark plug wire under the front wire and connect to ignition coil.
3.
Fasten boots/caps securely. Tight connections provide
the necessary moisture-proof environment for the ignition coil and spark plug terminals.
NOTE
See 1.15 SPARK PLUGS for spark plug information.
7-26
2001 Buell M2/M2L: Electrical
1.
2.
3.
4.
Ohmmeter Positive Lead
Ohmmeter Negative Lead
Spark Plug Cable (6.5 in. shown)
Ohmmeter
Figure 7-23. Testing Resistance
HOME
STARTER INTERLOCK
7.11
GENERAL
Ignition Circuit
The starter interlock system is designed to prevent unintended start-up and/or forward motion of the motorcycle with
the vehicle’s side stand not retracted.
The ignition circuit prevents the motorcycle from operating
unless a ground is established at the ignition relay. If this
ground is not established, the ignition system will be not
turned on and the motorcycle will not run. Grounds may be
established three ways.
Two circuits make up the starter interlock system.
●
By retracting the side stand and grounding through the
side stand switch.
Starter Circuit
●
By placing the motorcycle in neutral and grounding
through the neutral switch.
The starter circuit prevents the motorcycle from being started
unless a ground has been established at the starter relay.
This ground may come from one of two sources.
●
By disengaging the clutch and grounding through the
clutch lever switch.
●
By placing the motorcycle in neutral and grounding
through the neutral switch.
●
By disengaging the clutch and grounding through the
clutch lever switch.
Note that the ignition circuit allows operation in gear with the
side stand extended if the clutch is disengaged. However, if
the motorcycle is in gear with the side stand extended, and
the clutch is released, the ignition ground is lost and the ignition system is turned off. This system will prevent vehicle
operation if forward motion is attempted with the side stand
down.
See Figure 7-30
Once the starter circuit is grounded and the starter button
pushed, the starter relay can be energized. The energized
relay then allows the starter motor to crank the engine.
PROBLEM
Electric starter will not crank.
CHECK FOR
CORRECTION
Battery problems.
See or 7.17 BATTERY.
Inappropriate gear selected.
Place vehicle in neutral.
Clutch lever not disengaged.
Pull in clutch lever.
Starter relay problems.
Listen for starter relay “click”. If click is not heard,
perform starter relay tests.
Follow starter troubleshooting in Section 5.
Electric starter cranks, but vehicle
will not start.
Side stand not retracted.
Retract side stand.
Motorcycle will not start with side
stand retracted.
Clutch lever not disengaged.
Pull in clutch lever.
Motorcycle will not start with side
stand retracted or clutch disengaged.
Ignition relay problems.
Listen for relay “click”. If click is not heard, perform
ignition system tests.
Motorcycle will not start after starter
relay tests.
No spark at spark plug.
Check for 12 VDC at coil W/BK wire.
Follow ignition system troubleshooting. See 7.2
IGNITION SYSTEM.
2001 Buell M2/M2L: Electrical
7-27
HOME
DIAGNOSTICS
Ignition Test
CONDITION: Sidestand up and key ON, transmission in neutral and clutch engaged
Check for ground on TN/W wire
of sidestand connector [14].
Ground present?
YES
NO
Repair open on TN/W
wire between ignition
relay and connector [85].
Check for ground on BK
wire of connector [14].
Ground present?
5053
YES
NO
Replace sidestand
switch.
Repair open BK wire
between connector [85]
and ground.
5054
5055
Starter Test (Part 1 of 2)
CONDITION: Sidestand down, key ON, transmission in neutral and clutch engaged
Check for ground on TN/GN wire of Diode 1.
Ground present?
YES
NO
Check for ground at TN
wire on Diode 1. Ground
present?
Repair open
on TN/GN wire.
5060
YES
1
2
NO
Check Diode 1 with
ohmmeter. Diode OK?
Remove sprocket cover.
Check for ground at
neutral switch terminal.
Ground present?
YES
NO
YES
NO
Diode installed
backwards. Reverse
polarity.
Replace
diode.
Repair open on TN wire
between neutral switch
and Diode 2.
Replace
neutral
switch.
5062
5061
7-28
2001 Buell M2/M2L: Electrical
5063
5064
HOME
Starter Test (Part 2 of 2)
CONDITION: Sidestand down, key ON, transmission in gear and clutch disengaged
Check for ground on TN/W wire
of Diode 2. Ground present?
YES
NO
Repair open on TN/W
wire between Diode 2
and ignition relay.
Check for ground on
TN/GN wire of Diode 2.
Ground present?
5070
1
2
YES
NO
Check Diode 2 with
ohmmeter. Diode OK?
Check for ground on
TN/GN wire of clutch
switch connector [5].
Ground present?
YES
NO
YES
NO
Diode installed
backwards.
Reverse polarity.
Replace
diode.
Repair open on TN/
GN wire between
connector [5] and
Diode 2.
Check for ground on BK
wire of connector [5].
Ground present?
5072
5071
5073
YES
NO
Replace clutch
switch.
Repair open on
BK wire between
connector [5] and
ground.
5074
5075
2001 Buell M2/M2L: Electrical
7-29
HOME
b0751str
COLOR
LT.
CODE:
LIGHT
BK
BLACK
BE
BLUE
BN
BROWN
GN
GREEN
GY
GRAY
CONNECTOR
CODE:
DIODE
O
PIN
ORANGE
PK
CONNECTOR
SOCKET
CONNECTOR
SPLICE
CONNECTION
PINK
R
RED
TN
TAN
V
VIOLET
W
WHITE
Y
YELLOW
NO
CONNECTION
[1]
IGN
IGN
POWER
MODULE
FROM
TO
(2)
STARTER
BE
W/R
GN/BK
Y/R
4
3
GY/O
W/BK
2
W/BK
1
BK/R
TN
S8
NEUTRAL
SWITCH
S1
MAIN
CHASSIS
GROUND
BK
R
MASTER
CIRCUIT
S11
[5]
FROM IGN RLY
TO GROUND
CLUTCH
R/BE
BK
1
2
TN/GN
BK
SWITCH
GN
S7
BK
R
R/BK
D
C
B
A
R
[8]
R/BK
15A
15A
ACCESSORY
15A
20A
TN
INSTRUMENTS
LIGHTS
IGNITION
2
DIODE
TN/GN
1
DIODE
GN
R/BK
BK/R
R/BK
15A
15A
85
87A
SPARE
87
MEMORY
GY/O
TN/GN
30
R/BK
IGN
R/GY
R
86
KEY
GY/O
[13]
86
[12]
FUSE
BLOCK
7-30
Figure 7-24. Electric Starting System Circuit
15A
15A
SPARE
85
87A
SPARE
87
20A
30
RELAY
BLOCK
P
OFF
GY/O
SPARE
2001 Buell M2/M2L: Electrical
BK
SWITCH
BATTERY
HOME
TESTING/REPLACEMENT
8201
Side Stand Switch
See Figure 7-31 The side stand switch is a simple spring
loaded plunger. The switch completes a path to ground for
the ignition relay when the side stand is in the retracted position. Test the switch as follows:
1.
Unplug the 2-place side stand switch connector [14].
2.
Test the switch using an ohmmeter.
3.
a.
With side stand down (1) (switch open), the switch
should show ∞ ohms (infinite ohms).
b.
With side stand up (2) (switch closed), the switch
should show 0 ohms or little resistance.
Replace the assembly with a new switch if necessary.
●
Remove side stand switch from frame by removing
two nuts.
Figure 7-25. Side Stand Switch
Clutch Switch
See Figure 7-31 The clutch switch attaches to the clutch control lever bracket. The switch completes a path to ground for
the ignition relay and the starter relay when the clutch is disengaged. Test the switch as follows:
1.
Unplug the 2-place clutch switch connector [5].
2.
Test the switch using an ohmmeter.
3.
a.
With clutch engaged (1) (switch open), the switch
should show ∞ ohms (infinite ohms).
b.
With clutch disengaged (2) (switch closed), the
switch should show 0 ohms or little resistance.
b0393x7x
1
Replace the assembly with a new switch if necessary.
a.
Remove small Phillips screw.
b.
Depress clutch lever and hold.
c.
Detach switch by depressing switch trigger button
and pulling switch towards the end of the handlebar.
d.
Install new switch.
2
3
1.
2.
3.
Trigger
button
Clutch Engaged (switch open)
Clutch Disengaged (switch closed)
Connector [5]
Figure 7-26. Clutch Switch
2001 Buell M2/M2L: Electrical
7-31
HOME
Ignition Relay
7075
See Figure 7-32 The ignition relay is in the relay block which
is located on the right side under the tail section. Test the
relay as follows:
1.
Remove seat and fuel tank. See 2.36 SEAT.
2.
Unplug relay from relay block. See “ON-MOTORCYCLE”
TESTS, Section 5.
3.
Test the relay in the same fashion as the starter relay.
4.
Replace the relay with a new relay if necessary.
2
1
Starter Relay
The starter relay is on the left side near the battery strap nut.
See 5.6 STARTER SYSTEM TESTING.
1.
2.
Battery Negative Cable
Main Circuit Breaker
Figure 7-28. Circuit Breaker
Main Circuit Breaker
See Figure 7-32 Attached to the frame above the battery, the
main circuit breaker (1) is between the ignition key switch and
the battery. Remove the main circuit breaker as follows:
1.
Remove seat and fuel tank. See 4.5 FUEL TANK.
2.
Remove battery negative cable (1) from frame.
3.
See Figure 7-32 Remove nuts (5), star washers (4) and
wire leads (6, 7 and 8) from circuit breaker studs.
4.
Remove circuit breaker (3) from circuit breaker clip (1).
5.
Install in the reverse order.
Ignition Fuse
See Figure 7-32 The ignition fuse is in the fuse block under
the right side of the tail section. Always replace the fuse with
another 15 ampere fuse.
b0401a7x
1
2
3
7
1.
2.
3.
4.
5.
6.
7.
8.
9.
9
Clip
Pop Rivet
Circuit Breaker
Star Washer (2)
Nut (2)
Wire from Voltage Regulator
R wire from Key Switch
BK wire from Starter
Circuit Breaker gold post
8
R/BK
O/W
15A
15A
ACCESSORY
R/BK
15A
O
INSTRUMENTS
BE
Ignition Relay
LIGHTS
6763
O/W
R/GY
15A
15A
SPARE
15A
MEMORY
R/BK
IGNITION
R
GY/O
15A
15A
SPARE
SPARE
20A
SPARE
R
[12]
Fuse
Figure 7-27. Ignition Relay
Figure 7-30. Fuse Block
7-32
2001 Buell M2/M2L: Electrical
4
5
Figure 7-29. Circuit Breaker Installation
b0717x7x
6
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Diodes
The relay block contains two diodes. A diode acts as a one
way switch which permits current flow in one direction, but not
in the other.
The reference numbers below correlate with the circled numbers in the 7.11 STARTER INTERLOCK flow charts.
1.
Check diode with an ohmmeter as shown in Figure 7-33
2.
Check diode polarity as shown in Figure 7-33
TN
To Clutch
Switch [5]
b0643x4x
Neutral
Switch
Infinite
ohms
Figure 7-31. Ohmmeter Diode Test
TN/W
Diode 2
TN
Continuity
Diode 1
TN/GN
TN/GN
To Clutch
Switch [5]
b0644x4x
TN
TN/GN
Diode 1 Polarity
TN/GN
TN/W
Ignition Relay
TN/W
Diode 2 Polarity
Relay Block
Figure 7-32. Diode Polarity
Figure 7-33. Diode Wiring
2001 Buell M2/M2L: Electrical
7-33
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7-34
2001 Buell M2/M2L: Electrical