SU Eliminator II Rebuild Instructions
Disassembly
1
2
SU Eliminator II Carb ready for
rebuild.
Remove Dome.
4
3
Piston & Needle.
5
Remove Piston from Dome.
Remove (3) Dome screws.
6
7
Remove Needle from Piston.
8
Piston with Needle removed.
Body with Piston removed.
10
9
Remove Dome Cap.
Remove Float Bowl Cover
562-907-2606
RIVERA PRIMO INC.
12450 WHITTIER BLVD.
WHITTIER, CA 90602
11
Float Bowl Cover removed
562-907-2606
www.riveraprimoinc.com ~ info1@riveraprimoinc.com
12
Float Bowl Cover & parts.
15
Bi-Metallic Lever & Main Jet.
14
13
Remove Bi-Metallic Lever &
Main Jet.
Remove screw from Bi-Metallic
Lever & lift stright up.
16
Remove Float Spindle Screw.
18
19
Lift up and remove Float.
Float removed.
21
22
Seat.
Remove Seat.
17
Float Spindle Screw removed.
20
Remove Needle.
23
Seat & Gasket.
NOTE: Prior to working on any carburetor, it must be completly removed from the bike, drained of
all gas and dry. Work in a well ventilated area, away from any open flames or sparks. The Float
tab only sits on top of and applys pressure to the top of the needle to keep it in place.
24
Disassemble Ticker Pump
Body.
27
Tickler Stem with Viton Cup..
25
Tickler Pump assy. removed
from Tickler Body.
26
Remove large Tickler Spring
from Tickler Pump Assy..
28
Begin Removing Choke Cam
Lever by bending lock tabs.
30
31
Lift up and remove Choke
Cam Lever.
Remove Choke Spring.
33
34
Bend lock tabs back and remove nut from Idle Stop Lever.
Remove Idle Stop Lever and
Throttle Return Spring.
29
Next remove the Choke Cam
Lever nut.
32
Choke Cam Lever Assy..
35
Idle Stop Lever assy.
NOTE: If the lock tabs are worn, you should replace it with new ones. Be careful when removing
any spring that is under load, as it may pose eye injury risk.
36
Bend locktabs back on Throttle
Spring Retainer.
39
Now remove Spring Retainer
with needle nose pliers.
37
With tabs bent back prepare to
remove nut.
38
Remove nut from Spring Retainer with 7/16” wrench.
40
With Spring Retainer off, remove Return Spring.
42
43
Lift up and remove Choke
Body.
Choke Body gasket.
45
46
Push the threaded end of
Chody Body Spindle outward.
Keep pushing down on spindle.
41
Next remove the (2) Choke
Body Screws.
44
Choke Body o-ring.
47
Remove spindle from Choke
Body..
NOTE: The Choke Body Gasket (figure 43) has a notch cut in it which must be aligned with the
hole in the Choke Body bracket.
48
Choke Body assy.
51
Remove Idle Speed Screw
oring.
49
Remove Idle Speed Screw.
52
Note position of the number “5”
stamped in the Blade.
54
55
Lift up and remove the Throttle
Blade.
Throttle Blade removed.
57
58
Throttle Shaft removed.
Lastly, remove the Throttle
Shaft Spindle Seal.
50
Idle Speed screw removed.
53
Next remove the (2) Throttle
Blade Screws.
56
Now remove the Throttle Shaft
by pulling from either end.
59
Both Throttle Spindle Shaft
seals should be removed.
NOTE: If the lock tabs are worn, you should replace it with new ones. Be careful when removing
any spring that is under load, as it may pose eye injury risk.
60
61
Remove Main Jet Adjusting
Screw.
62
Main Jet Adjusting Screw &
oring.
Main Jet Adjusting Screw removed.
64
63
Remove circlip on Piston Lift
Pin and push up to remove.
65
Push up on Piston Lift Pin to
remove.
66
Piston Lift Pin assy.
Eliminator II Thread Sizes
Thread size
5/16x 18 UNC
No. 6 x 32 UNC
No. 10 x 32 UNF
3/16 x 24 WHIT
M4 x 0.7
9/16 x 18 UNF
7/16 UNF
4 BA
No. 6 x 32 UNC
No. 10 x 32 UNF
Completely stripped SU carburettor body!
Location
Air filter mounting
Choke mounting screw
Float bowl screw
Suction chamber screw
Idle adjusting screw
Jet bearing nut
Needle valve
Jet adjusting screw
Bi-metal fixing screw
Float spindle
Part No.
1042-0054
1042-0049
1042-0538
1042-0575
1042-0583
1109-0007
1042-0558
1042-0046
1042-0524
NOTE: Remove Piston Lift Pin circlip with a small needle nose pliers, then remove spring. Push
up towards the top of the carb body to remove the Piston Lift Pin.
562-907-2606
RIVERA PRIMO INC.
12450 WHITTIER BLVD.
WHITTIER, CA 90602
562-907-2606
www.riveraprimoinc.com ~ info1@riveraprimoinc.com