Idle Speed - Honda CRF50F Owner's Manual

37GJGA00.book 64 ページ ２０２１年３月５日 金曜日 午後２時５０分

IDLE SPEED

Refer to the Safety Precautions on page 50.
Idle Speed:
The engine must be at normal operating
temperature for accurate idle speed
adjustment. 10 minutes of stop-and-go
riding is sufficient.
Do not attempt to compensate for faults in
other systems by adjusting idle speed. See
your dealer for regularly scheduled
carburetor adjustments.
(1)
( ( B B
( ( A A ) )
(2)
(1) Throttle stop screw (A) Decrease
(2) Air screw (B) Increase
64
1. Warm up the engine and hold the
motorcycle upright.
2. Connect a tachometer to the engine.
3. Adjust idle speed with the throttle stop
screw (1).
Idle speed (In neutral):
1,700 ± 100 min
Idle Mixture:
1. Adjust the fuel mixture by turning the
air screw (2) clockwise until you hear
the engine miss or decrease in speed,
then counterclockwise until the engine
again misses or decreases in speed. Set
the air screw exactly between these two
extreme positions.
From a fully closed position, the correct
) )
setting (between extremes of rich and
lean) will be approximately:
1 1/2
2. If the idle speed changes after adjusting
fuel mixture, readjust the idle speed by
turning the throttle stop screw.
-1
(rpm)