Honda INTERCEPTOR 2002 Service Manual page 633

TROUBLESHOOTING
9. Programmed Fuel Injection System Inspection
Check the fuel injection system.
Is the fuel injection system normal?
NO - Faulty fue l injection system (page 5-68).
YES - GO TO STEP 10.
10. lubrication Inspection
Remove cylinder head cover and inspect lubrication.
Is the valve train lubricated properly?
NO - • Oil level too low
• Faulty oil pump drive mechanism
• Faulty oil pump
YES -GO TO STEP 11.
11. Over Heating Inspection
Check for engine over heating.
Is the engine overheating?
YES - • Coolant level too low
• Fan motor not working (Faulty fan motor switch)
• T hermostat stuck closed
• Excessive carbon build-up in combustion chamber
• Use of poor quality fuel
• Clutch slipping
NO - GO TO STEP 12.
12. Engine Knocking Inspection
Accelerate or run at high speed.
Is the engine knocking?
YES - • Worn piston and cylinder
• Wrong type of fuel
• Thermostat stuck closed
• Excessive carbon build-up in combustion chamber
• Ignition timing too advance (Fau lty ECM)
NO - • Engine does not knock
POOR PERFORMANCE AT IDLE AND LOW SPEED
23-4
1. Spark Plug Inspection
Remove and inspect spark plug.
Are the spark plugs in good condition?
NO - • Plugs not serviced frequently enough
• Incorrect spark plug heat range
• Incorrect spark plug gap
YES - GO TO STEP 2.
2. Ignition Timing Inspection
Check the ignition timing.
Is the ignition timing as specified?
NO - • Faulty engine control module (ECM )
• Faulty ignition pulse generator
• Improper va lve timing
YES - GO TO STEP 3.