Idle Speed Adjustment - Yamaha 4SH-28199-67 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
procedure.
1. Start the engine and warm it up for a few
minutes at
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. Connect the tachometer and set the idle to
the specified idling speed by adjusting the
throttle stop screw. Turn the screw in to
increase engine speed, and out to de-
crease engine speed.
Specified idle speed:
1,350 ~ 1,450 r/min
8-51
approximately 1,000
EBU00301
to