Operation Manual

18
Throttle adjustment
To adjust the play in the throttle cable system, slide back
the rubber sleeve –1– at the carburetor end of the throttle
cable and make the adjustment with the adjuster –2–.
Turning the adjuster counterclockwise will decrease the
play in the cable.
Turning the adjuster clockwise will increase the play.
After completing the adjustment, slide the rubber sleeve
completely over the end of the cable to prevent the entry of
water into the carburetor.
Carburetor adjustment
Perform the carburetor adjustment periodically at every
4500km (3000 miles).
1 After the engine is warmed up, adjust the carburetor.
Set the idling speed to 1100~1200 rpm, with the
throttle stop screw –1–.
2 Manipulate the air screw –2– to obtain the maximum
engine speed. (The standard air screw setting is
between 1.1/8 to 1.3/8.
3 Readjust the throttle stop screw if it is necessary to
reset the idling speed.
NOTE:
MALFUNCTION OF THE ENGINE DURING HIGH SPEED
CAN BE CAUSED BY A DEFECTIVE IGNITION SYSTEM
OR VALVES, DETERMINE THE CAUSE OF THE TROUBLE
BEFORE ATTEMPTING TO CORRECT THE CONDITION BY
ADJUSTING THE CARBURETOR.
Clutch adjustment
Super motorcycle incorporates an automatic centrifugal
clutch.
Perform the clutch adjustment by the following procedure.
1 Clutch must be adjusted with the engine shut off.
Loosen the clutch adjuster lock nut –1–.
2 Turn the adjuster clockwise about one whole turn; do
not turn excessively.
3 Next, slowly turn the adjuster –2– counterclockwise
and stop when the screw starts to turn heavy.
4 From this position, back off the adjuster in the
clockwise direction 1/8 to 1/4 turn, and then tighten
the clutch adjuster lock nut.
Check to make sure that the clutch operates properly after
adjustment.
1 The engine should start easily with the kick starter
without the clutch slipping.
2 When changing gear, the clutch operation should be
smooth and light, especially when shifting down in
gear to the neutral position.