Adjusting The Engine Idling Speed - Yamaha YFM250RX 2008 Service Manual

ADJUSTING THE VALVE CLEARANCE/

ADJUSTING THE ENGINE IDLING SPEED

d. Measure the valve clearance again.
e. If the valve clearance is still out of specifica-
tion, repeat all of the valve clearance
adjustment steps until the specified clear-
ance is obtained.
6. Install:
• all removed parts
NOTE: 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. Attach:
• digital tachometer
(onto the ignition coil spark plug lead)
Digital tachometer
90890-06760, YU-39951-B
3. Measure:
• engine idling speed
Out of specification → Adjust.
Engine idling speed
1,500 ~ 1,600 r/min
3-11
CHK
ADJ