Section 04 ENGINE
Subsection 11 (CARBURETOR AND FUEL PUMP)
04-11-7
Twin Carburetor Models Only
Repeat on the other one. This will ensure identical
throttle slide preliminary idle setting. Recheck car-
buretor synchronization. Adjust idle by turning
both idle speed screws the same amount.
All Models
Throttle slide must be flush or 1.0 mm (.040 in)
lower than the top of carburetor
oulet
bore (en-
gine side).
THROTTLE LEVER AGAINST HANDLE GRIP
1. Throttle cable adjuster
2. Throttle slide flush or 1.0 mm (.040 in) lower than carburetor
oulet bore (engine side)
Once carburetor adjustment is performed, check
that
with the throttle lever fully depressed
,
there is a free play between the carburetor cover
and top of throttle slide.
THROTTLE LEVER AGAINST HANDLE GRIP
1. Cover
2. Free play
3. Throttle slide
On twin-carburetor models: Recheck carburetor
synchronization.
PRELIMINARY IDLE SPEED
ADJUSTMENT
Adjust throttle slide height (see table) by turning
idle speed screw
no. 7
.
Final adjustment (engine running at idle speed)
should be within 1/2 turn of idle speed screw from
preliminary adjustment.
-
CAUTION
On twin carburetor models, make sure both
carburetors start to operate simultaneously.
Do not interchange carburetors, the jetting
may be different on each side. A red dot is
printed on one carburetor and on the en-
gine. Match the carburetor and the engine
dots when applicable.
-
CAUTION
On oil injection models, the oil injection
pump adjustment must be checked each
time carburetor is adjusted. Refer to OIL IN-
JECTION SYSTEM 04-06.
A01C3MA
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2
â—†
WARNING
This gap is very important. If the throttle
slide rests against the carburetor cover at
full throttle opening, this will create too
much strain and may damage the throttle
cable or other components in throttle mech-
anism.
-
CAUTION
On oil injection models, the oil injection
pump adjustment must be checked each
time carburetor is adjusted. Refer to OIL IN-
JECTION SYSTEM 04-06.
A00C3FA
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2
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