Idle Speed Adjustment - Yamaha YFM80WS Owner's Manual

b
1. Throttle stop screw
1. Vis de butée de papillon
1. Tornillo tope del acelerador
a
q
EBU01143

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 direc-
tion a to increase the engine speed, and
in direction b to decrease the engine
speed.
Specified idle speed:
1,700–1,900 r/min
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