Adjusting The Engine Idling Speed - Yamaha XC50V Service Manual

ADJUSTING THE ENGINE IDLING SPEED

1
a
b
EAS00054
ADJUSTING THE ENGINE IDLING SPEED
NOTE:
Prior to adjusting 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. Connect:
8 engine tachometer
(onto the spark plug lead of cylinder)
Engine tachometer
90890-03113
YU-08036-C
3. Check:
8 engine idling speed
Out of specification
Engine idling speed
2000 ~ 2400 r/min
4. Adjust:
8 engine idling speed
*****************************************************
a . Turn the throttle stop screw 1 in direction
a or b until the specified engine idling
speed is obtained.
Direction a
Engine idling speed is increased.
Direction b
Engine idling speed is decreased.
*****************************************************
5 . Adjust:
8throttle cable free play
Refer to "ADJUSTING THE THROTTLE
CABLE FREE PLAY".
Throttle cable free play (at the flange
of the throttle grip)
1.5 ~ 3.5 mm (0.059 ~ 0.138 in)
3-14
CHK
ADJ
Adjust