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 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. 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 decrease
engine speed.
Specified idle speed:
MXU 250:
1,400~1,600 r/min
MXU 150:
1,600~1,800 r/min
MXU 50: 1,700~1,900 r/min
(1) Throttle stop screw (MXU 250/150)
(1) Throttle stop screw (MXU 50)
144
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