PERIODIC MAINTENANCE AND ADJUSTMENT
7-19
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9
EAU45322
Adjusting the engine idling
speed
The engine idling speed must be
checked and, if necessary, adjusted as
follows.
TIP
A digital tachometer is needed to make
this adjustment.
1. Position the digital tachometer at
the ignition coil, which is located in
the spark plug cap.
2. Check the engine idling speed
and, if necessary, adjust it to spec-
ification by turning the idle adjust-
ing screw. To increase the engine
idling speed, turn the screw in di-
rection (a). To decrease the en-
gine idling speed, turn the screw in
direction (b).
TIP
If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
EAU21384
Checking the throttle grip free
play
The throttle grip free play should mea-
sure 3.0
–
5.0 mm (0.12
–
0.20 in) at the
inner edge of the throttle grip. Periodi-
cally check the throttle grip free play
and, if necessary, have a Yamaha
dealer adjust it.
1. Idle adjusting screw
Engine idling speed:
1450
–
1650 r/min
1
(b)
(a)
1. Throttle grip free play
1
32D-9-28-E0.book 19 ページ 2011年6月29日 水曜日 午後5時28分
Содержание 2012 WR250R
Страница 1: ...q Read this manual carefully before operating this vehicle OWNER S MANUAL WR250RB 32D 28199 28 ...
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