Checking The Engine Idling Speed - Yamaha PW50W 2007 Service Manual

CHANGING THE ENGINE IDLING SPEED
1
b
a
2

CHECKING THE ENGINE IDLING SPEED

NOTE:
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
several minutes.
2. Install:
9 Digital tachometer
(onto the spark plug lead 1 of cylinder)
Digital tachometer
90890-06760, YU-06760
3. Check:
9 Engine idling speed
Out of specification
stop screw.
Engine idling speed
1650-1750 r/min
4. Adjust:
9 Engine idling speed
MMMMMMMMMMMMMMMMMMMMMMM
a. Install the digital tachometer onto the
spark plug lead.
b. Turn the throttle stop screw 2 in direction
a or b until the specified engine idling
speed is obtained.
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3-5
CHK
ADJ
→ Adjust the throttle