MAINTENANCE AND ADJUSTMENTS
IDLE ADJUSTMENT
The throttle body is a vital part of the engine and requires very sophisticated adjustment. Most
adjusting should be left to your dealer who has the professional knowledge and experience to do
so. However, the idling speed adjustment may be performed by the owner as a part of the usual
maintenance routine.
NOTICE: The throttle speed position was set at the manufacturer factory after many tests. If the
settings are disturbed by someone without sufficient technical knowledge, poor engine
performance and damage may result.
IDLE SPEED ADJUSTMENT
A diagnostic tachometer must be used for this procedure.
1. Start the engine and warm it up for a few minutes at approximately 1,000 to 2,000 rpm.
Occasionally rev the engine to 4,000 to 5,000 rpm. The engine is warm when it responds quickly
to the throttle.
2. Remove the seats. (See page 49 for seat removal and installation procedures.)
3. Remove the console. (See page 109 for console removal and installation procedures.)
4. 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 increase the engine speed,
and in direction (b) to decrease the engine speed.
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