Adjusting The Engine Idling Speed; Adjusting The Throttle Grip Free Play - Yamaha AG100FA Owner's Manual

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PERIODIC MAINTENANCE AND ADJUSTMENT
Adjusting the engine idling
speed
1
The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
2
periodic maintenance and lubrication
chart.
3
The engine should be warm before
making this adjustment.
4
TIP
The engine is warm when it quickly
responds to the throttle.
5
A diagnostic tachometer is needed
to make this adjustment.
6
1. Attach the tachometer to the spark
plug lead.
7
2. Check the engine idling speed
and, if necessary, adjust it to spec-
8
ification by turning the throttle stop
screw. To increase the engine
9
idling speed, turn the screw in di-
rection (a). To decrease the en-
gine idling speed, turn the screw in
direction (b).
EAU21340
(b)
1. Throttle stop screw
Engine idling speed:
1250–1350 r/min
TIP
If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
7-12
Adjusting the throttle grip free
play
(a)
1
(a)
1. Throttle grip free play adjusting nut
2. Locknut
3. Throttle grip free play
The throttle grip free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) as
shown. Periodically check the throttle
grip free play and, if necessary, adjust it
as follows.
TIP
The engine idling speed must be cor-
rectly adjusted before checking and ad-
justing the throttle grip free play.
1. Loosen the locknut.
2. To increase the throttle grip free
play, turn the throttle grip free play
EAU21374
1
(b)
2
3

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