Camshaft Chain Adjustment; Idle Speed Adjustment - Yamaha ttr230 Service Manual

CAMSHAFT CHAIN ADJUSTMENT

1
2
1
/ IDLE SPEED
CAMSHAFT CHAIN ADJUSTMENT
Automatic adjustment.

IDLE SPEED ADJUSTMENT

Let the engine run for some minutes for
warming up.
1. Connect:
Tachometer 1 to spark plug cable
Tachometer:
90890-03113
2. Check:
Idle speed
Out of specification => Adjust.
Idle speed:
1,400~1,600rpm
3. Adjust:
• Idle speed
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Adjustment steps:
Close the pilot screw 1 until it touches
its seat.
Open the pilot screw up to the specified
value.
Pilot screw:
2.0 turns outward
Turn the idle speed screw 2 inward or
outward until establish the specified idle
speed.
Turning inward => Increases the idle speed.
Turning outward => Decreases the idle speed.
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3-9
INSP
ADJUS