Honda CRF450X 2010 User Manual

TROUBLESHOOTING
POOR PERFORMANCE AT HIGH SPEED
22-6
1. Fuel line Inspection
Disconnect fuel line 8t carburetor.
Does fuel flow freely?
NO _ . Clogged fuel line
• Clogged fu el tank breather
• Fa ulty fuel valve
• Clogged the fuel strainer sc reen
YES - GO TO STEP 2.
2. Carburetor Inspection
Check carburetor for clogs.
Is the carburetor clogged?
YES - Carburetor not serviced fr equently enough.
NO - GO TO STEP 3.
3. Ignition Timing Inspection
Check ignition timing .
Is the ignition timing correct?
NO _ . Faulty i gnition control module oeM)
• Faulty ignition pulse generator
YES - GO TO STEP 4.
4. Valve Timing Inspection
Check valve timing .
Is the valve timing correct?
NO - Cam chain not installed properly .
YES - GO TO STEP 5.
5. Valve Spring Inspection
Check valve springs .
Are the vslve springs weak?
YES - Faulty \181\18 spr ing .
NO - Not weak.

Honda CRF450X 2010 Specifications

General

Brand	Honda
Model	CRF450X 2010
Category	Motorcycle
Language	English