Adjusting The Engine Idling Speed - Yamaha YFZ450S 2003 Service Manual

ADJUSTING THE VALVE CLEARANCE/

ADJUSTING THE ENGINE IDLING SPEED

7. Install:
• all removed parts
NOTE:
_
For installation, reverse the removal proce-
dure.
EBS00051
ADJUSTING THE ENGINE IDLING SPEED
1. Start the engine and let it warm up for sev-
eral minutes.
2. Remove:
• seat
• fuel tank cover
• side covers (left and right)
• fuel tank
NOTE:
Slide the fuel tank.
Refer to "SEAT, FENDERS AND FUEL
TANK".
3. Attach:
• digital tachometer
(onto the ignition coil)
4. Install:
• fuel tank
Refer to "SEAT, FENDERS AND FUEL
TANK".
5. Measure:
• engine idling speed
Out of specification → Adjust.
Engine idling speed
1,750 ~ 1,850 r/min
3 - 13
CHK
ADJ