Engine Idle Speed And Air-Fuel Mixture - Honda TRX250TE 2019 Owner's Manual

Engine Idle Speed and Air-Fuel
The best way to assure proper carburetion is to see your dealer for
regularly scheduled servicing, including carburetor adjustment.
Remember, idle speed adjustment is not a "cure-all" for other
problems in your engine's fuel-delivery system. Adjusting the idle will
not compensate for a fault elsewhere.
The engine must be at normal operating temperature for accurate
idle speed adjustment.
For information about high altitude carburetor adjustment, see page 209.
Idle Speed Adjustment
Refer to Safety Precautions on page 97.
RIGHT SIDE
(1) throttle stop screw
(2) pilot screw
1. If the engine is cold, start it and warm it up with 10 minutes of
stop-and-go riding. Stop the engine.
2. Park your ATV on a firm, level surface.
3. Connect a tachometer to the engine.
4. Shift into neutral. Start the engine.
5. Adjust idle speed by turning the throttle stop screw (1).
Idle speed (in neutral):
1,400 ± 100 min
(1)
(2)
(rpm)
–1
Mixture
Servicing Your Honda
131