Engine Idle Speed - Honda CRF150R 2020 Owner's Manual & Competition Handbook

Engine Idle Speed

Engine Idle Speed

Refer to Safety Precautions on page 19.
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.
The best way to assure proper carburetion is to see
your dealer for regularly scheduled servicing,
including carburetor adjustment.
48
Servicing Your Honda
Idle Speed Adjustment
1. If the engine is cold, start it and warm it up 3
minutes and then shut it off.
2. Connect a tachometer to the engine.
3. Shift the transmission into neutral and start the
engine.
4. Keep the motorcycle in an upright position.
5. Adjust idle speed with the throttle stop screw
(1).
Idle speed:
2,100 ± 100 rpm
(1) throttle stop screw
(1)