Motorcycle Repair: honda clutches CT70, centrifugal clutches, adjustment screw

Question
The centrifugal clutches used on the small 70-90cc bikes such as the CT70 have an adjustment screw on the side of the engine. How is this supposed to be adjusted?
Many thanks.

Answer
I found this on the web for you... it is for CT110s, but applies to most all auto clutch models.

CLUTCH Adjustment:

The clutch is adjusted with the engine off. Remove the cover protector (1) and loosen the adjuster lock nut (2).
Turn the clutch adjuster (3) clockwise one turn; do not turn excessively.

Slowly turn the adjuster counterclockwise until a slight resistance is felt. From this position, turn the adjuster clockwise 1/8 turn, and tighten the lock nut. After adjustment, test ride the motorcycle to be certain the clutch operates properly.

The engine should start easily with the kickstarter without the clutch slipping. When shifting gears, the clutch operation should be smooth and light, especially when shifting into neutral.

Bill Silver