D. ADJUSTING THE ENGINE IDLING SPEED
TIP:
Prior to adjusting the engine idling speed, the Carburetor
synchronization should be adjusted properly, the air filter
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)
3. Check:
If out of specification, adjust it.
4. Adjust:
a. Turn the throttle stop screw “1” in direction “a” or “b”
until the specified engine idling speed is obtained.
8. Remove:
9. Adjust:
• Engine idling speed
• Engine idling speed
• Digital tachometer
• Throttle cable free play
Engine idling speed 1300–1500 r/min
Direction “a”
Engine idling speed is increased.
Direction “b”
Engine idling speed is decreased.
Throttle cable free play 3.0–5.0 mm
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