Note: Prior to adjusting the engine idling speed, the throttle bodies’ synchronization should be adjusted properly, the air filter element should be clean, and the engine should have adequate compression.
1. Start the engine and let it warm up for several minutes.
2. Install:
- Digital tachometer (onto the spark plug lead of cylinder #1)
3. Check:
- Engine idling speed. Out of specification → Adjust.
- Engine idling speed 1100-1300 r/min.
4. Adjust:
- Engine idling speed
a. Turn the idle adjusting screw "1" in direction "a" or "b" until the specified engine idling speed is obtained.
- Direction "a". Engine idling speed is increased.
- Direction "b". Engine idling speed is decreased.
5. Adjust:
- Throttle cable free play. Refer to «Adjusting the throttle cable free play».
Throttle cable free play (at the flange of the throttle grip) 3.0-5.0 mm (0.12-0.20 in).