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For twist throttle applications, install the pull cable
(long shoulder on cable) into the 8:00 position and
the return cable end into the 11:00 position of the
cable wheel. Secure cables to cable bracket by
replacing end piece and phillips screw. See figure
3.
Figure 3.
12. Align carburetor as close to vertical as
possible, then tighten manifold and air boot
clamps.
13. Adjust cable until wide-open throttle is
achieved. For thumb throttle minor grinding
of the throttle arm may be necessary to
achieve wide-open throttle. Twist throttle:
Adjust return cable to take up the slack.
Note: When throttle cables are properly
adjusted, there should be approx. 1/8” of
free play in the throttle.
14. After throttle cables have been adjusted the
handle bars should be rotated from full right
stop to full left stop while opening and
closing throttle to ensure smooth operation.
Also check to make sure the cables do not
catch or bind on anything, i.e., hand guards,
stabilizers.
15. Install Remote Idle Cable into threaded tab
on top of carburetor. Refer to main
instruction manual for remote idle cable
installation and adjustment.
16. Install stock breather box to right side of
frame and reconnect stock hoses to cylinder
and valve cover. Connect new clear hose to
air boot.
17. Install fuel tank. Trim fuel line to desired
length and secure to petcock with provided
pinch clamp. Trim vacuum line to desired
length and connect to small vacuum port on
backside of petcock. NOTE: If the vacuum
line is not installed to the carb and
petcock, fuel will only flow in the “PRI”
position on the petcock.
18. Turn fuel petcock to “PRI” and check for
leaks.
19. Open throttle 3-5 times to prime accelerator
pump. Do not open throttle any more than
5 times as this may flood engine!!
20. Once pump is primed, engage starter
without opening throttle. If Motor will not fire,
slowly open throttle until it starts. If it does
not start within 5-7 seconds, disengage
starter and pump throttle 2-3 more times and
repeat starting process.
NOTE: If flooding occurs, slowly open
throttle to wide open and hold. With
throttle still open, hold decompression
lever and kick motor through 5-10 times.
Release throttle and decompression lever
and proceed with normal starting
procedure.
For any questions regarding tuning or
installation of Edelbrock products, please
call our toll free tech line M-F 8:00am-12:
30pm, 1:30pm-5:00pm PST.
877-888-7504 ext.2.
Edelbrock #3157 (thumb) and #3158
(twist) Suzuki LTZ400 and Kawasaki
KFX400 Carburetor Specifications
Bore Size: 38mm Tall X 34mm Wide
Needle: 17E @ 12 Clicks
Accelerator Pump Bypass: 2 ¼ turns out
Alternate Needles: 15E, 19E
Replacement Cables: #9354 Thumb Cable
#9355 Twist Cables, pair