PERIODIC MAINTENANCE AND ADJUSTMENT
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TIP
Make sure to align the bolt holes when
installing the spark arrester cap.
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.
Tightening torque:
Spark arrester cap bolt:
12 Nm (1.2 m·kgf, 8.7 ft·lbf)
1. Idle adjusting screw
Engine idling speed:
1450–1650 r/min
1
(b)
(a)
32C-9-18.book 21 ページ 2011年7月6日 水曜日 午後5時55分