Honda CRF230F 2017 User Manual

53
CRF230F
Idle Speed
(Refer to the Safety Precautions on page 39.)
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 Honda
dealer for regularly scheduled carburetor adjustments.
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):
1,400 ± 100 min
–1
(rpm)
(1) Throttle stop
screw
(2) Pilot screw
(A) Increase
(B) Decrease
(2)
(1)
(B)
(A)
Idle mixture
1. Adjust the fuel mixture by turning the pilot 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 pilot screw exactly between these two
extreme positions.
From a fully closed position, the correct setting
(between extremes of rich and lean) will be
approximately: 1-5/8.
2. If the idle speed changes after adjusting fuel
mixture, readjust the idle speed by turning the
throttle stop screw.

Honda CRF230F 2017 Specifications

General

Engine Type	223cc air-cooled single-cylinder four-stroke
Bore and Stroke	65.5mm x 66.2mm
Compression Ratio	9.0:1
Ignition	CDI
Rear Suspension	Pro-Link Showa single shock; 9.0 inches travel
Front Brake	Single 240mm disc
Rear Brake	Drum
Front Tire	80/100-21
Rear Tire	100/100-18
Curb Weight	249 pounds
Final Drive	Chain
Front Suspension	37mm leading-axle Showa fork
Trail	4.4 inches
Induction	Keihin 26mm piston-valve carburetor