60
MAINTENANCE
IDLE SPEED
IDLE SPEED
Check throttle link mechanism and carburetor
throttle valve for smooth operation.
Connect a shop tachometer to the engine.
Start and warm the engine.
Check engine idle speed:
• 950 to 1050 RPM in neutral
• 900 to 1000 RPM in gear
IMPORTANT: Check and/or adjust idle speed
after the engine speed has stabilized.
If idle speed is out of specification, adjust as fol-
lows:
Turn the throttle stop screw:
• Clockwise: Engine speed increases
• Counterclockwise: Engine speed decreases.
IGNITION TIMING
IMPORTANT: Before checking ignition timing,
make sure idle speed is adjusted within specifica-
tion.
Start and warm the engine.
Connect a shop tachometer and timing light to the
no. 1 cylinder.
Check the ignition timing while operating the
engine at 1000 RPM.
Ignition timing:
• 2° BTDC @ 1000 RPM
005548
1. Throttle stop screw 005549
1
005550
005551
To Next Page
Loading...
