2-12
PERIODIC MAINTENANCE
IDLE SPEED
IDLE SPEED
Checking
1. Check the link mechanism and the carburetor throttle
valves for smooth operation.
2. Attach the tachometer cord to the spark plug high-tension
cord.
Engine tachometer
3. Start and warm up the engine.
NOTE:
Check and/or adjust the idle speed after the engine speed
has stabilized.
4. Check the idle speed.
Idle speed (in neutral gear): 1250 – 1350 rpm
Adjustment
If the idle speed is out of the specification, adjust the speed
as follows:
1. Turn the idle adjusting screw.
• Turning clockwise:
The engine speed becomes higher.
• Turning counterclockwise:
The engine speed becomes lower.
INSPECT INITIALLY AFTER 10 HOURS (1 MONTH)
AND EVERY 200 HOURS (12 MONTHS) THEREAFTER.
1. Idle adjusting screw
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