Yamaha YW125Y_ Utility Trailer User Manual


 
3-12
CHK
ADJ
1
CHECKING THE ENGINE IDLING SPEED
EAS00054
CHECKING THE ENGINE IDLING SPEED
TIP
Prior to checking the engine idling speed, the air
filter element should be clean, and the engine
should have adequate compression.
1. Start the engine and let it warm up for sev-
eral minutes.
2. Remove:
8battery box cover
8front cover
Refer to “COVER AND PANEL”.
3. Connect:
8digital tachometer 1
(onto the spark plug lead of cylinder)
Digital tachometer
90890-06760
4. Check:
8engine idling speed
Out of specification J Replace the
throttle body.
Engine idling speed
1700 ~ 1900r/min
5. Install:
8front cover
8battery box cover
Refer to “COVER AND PANEL”.
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