Section 03 ENGINE
Sub-Section 09 (CARBURETOR AND FUEL PUMP)
03-09-5
CENTER POST TYPE
1. Throttle cable
2. Needle retaining plate
3. Throttle slide
Make sure the nylon packing
no. 4
is installed on
all applicable throttle slides.
CAUTION : Serious engine damage can
occur if this notice is disregarded.
CENTER POST TYPE
1. E-clip
2. Needle retaining plate
3. Screw
4. Needle
5. Nylon packing
CARBURETOR ADJUSTMENTS
1. Idle speed screw
2. Air screw
6, Air Screw Adjustment
Completely close the
air screw
(until a slight seat-
ing resistance is felt) then back off as specified.
Turning screw in clockwise enrichners mixture
and conversely, turning it out counterclockwise
leans mixture.
Refer to TECHNICAL DATA section 09 for the
specifications.
Carburetor Synchronization
Twin Carburetor Models Only
Both carburetor slides must start to open at the
same time.
Completely unscrew idle speed screw on both
carburetors.
Unlock cable adjustment lock nut then screw in
adjuster until throttle slide bottoms out. Proceed
the same for both carburetors.
Unscrew cable adjuster to eliminate all cable play
but without raising throttle slide. Proceed with
care on both carburetors then tighten jam nuts.
Both carburetor slide must start to open at the
same time, depress throttle lever to check it and
turn cable adjuster as required.
Check throttle slide position at wide open throttle.
Throttle slide must be flush or 1 mm (.040 in) low-
er than carburetor
outlet
bore. At that same posi-
tion, check that throttle slide does not contact
carburetor cover. Turn cable adjuster and recheck
synchronization.
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