Adjusting The Timing Chain; Adjusting The Idling Speed - Yamaha YFM660RN Service Manual

ADJUSTING THE VALVE CLEARANCE/ADJUSTING THE
TIMING CHAIN/ADJUSTING THE IDLING SPEED
10.Install:
Fuel tank
Front fender
Seat
Refer to "SEAT, FENDERS AND FUEL
TANK".

ADJUSTING THE TIMING CHAIN

Adjustment free.

ADJUSTING THE IDLING SPEED

1.Start the engine and let it warm up for sev-
eral minutes.
2.Attach:
Tachometer
(to the spark plug lead)
3.Check:
Engine idling speed
Out of specification → Adjust.
Engine idling speed:
1,450 ~ 1,550 r/min
3 - 11
CHK
ADJ