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Honda CRF450R User Manual

Honda CRF450R
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48 Servicing Your Honda
Engine Idle Speed
Refer to Safety Precautions on page 19.
Remember, idle speed adjustment in not a
cure-all for other problems in your engines
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.
Idle Speed Adjustment
1. Turn the pilot screw (1) in until it is lightly
seated and record the number of turns. Turn
the pilot screw out the same number of turns.
(1)
(1) pilot screw
2. If the engine is cold, start it and warm it up 3
minutes. Then shut it off.
3. Connect a tachometer to the engine.
4. Shift into neutral. Start the engine.
5. Keep the motorcycle in an upright position.
6. Adjust idle speed with the throttle stop screw
(2).
Idle speed:
1,700 ± 100 rpm
(2)
(2) throttle stop screw

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Honda CRF450R Specifications

General IconGeneral
BrandHonda
ModelCRF450R
CategoryMotorcycle
LanguageEnglish

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