122
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 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.
Specified idle speed:
1,450-1,550 r/min
Throttle stop screw
The correct valve clearance changes with use,resulting
in improper fuel/air supply or engine noise. To prevent
this, the valve clearance must be adjusted regularly.
This adjustment however,should be left to a professional
ATV service technician.
Valve clearance adjustment
①
USER'S MANUAL
Содержание RD400
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