Idle Speed Adjustment - Yamaha GRIZZLY 660 YFM66FAV Owner's Manual

1. Throttle stop screw
1. Vis d'arrêt de l'accélérateur
1. Tornillo de tope del acelerador

Idle speed adjustment

NOTE:
_
A diagnostic tachometer must be used for this pro-
cedure.
_
1. Start the engine and warm it up for a few min-
utes at approximately 1,000 to 2,000 r/min.
Occasionally rev the engine to 4,000 to
5,000 r/min. The engine is warm when it
quickly responds to the throttle.
2. Remove panel D. (See pages 8-19–8-21 for
removal and installation procedures.)
3. Connect the tachometer to the spark plug
lead, and then set the idle to the specified
idling speed by adjusting the throttle stop
screw. Turn the screw in direction a to in-
crease the engine speed, and in direction b
to decrease the engine speed.
Specified idle speed:
1,450–1,550 r/min
4. Install the panel.
8-95
EBU01258