Honda INTERCEPTOR 2002 Service Manual page 631

TROUBLESHOOTING
ENGINE DOES NOT START OR IS HARD TO START
1. Spark Plug Inspection
Remove and inspect spark plug.
Are the spark plugs in good condition?
NO - • Incorrect spark plug heat range
• Incorrect spa rk plug g ap
• Dirty air cleaner
YES - GO TO STEP 2.
2. Spark Test
Perform spark test.
Is the spark quality good?
NO - • Faulty spark plug
• Loose or disconnect ed ignition system wires
• Faulty direct ignition coil
• Fau lty ignition pulse generator
• Faulty engine sto p swit ch
• Faulty engine control module (ECM)
YES - GO TO STEP 3.
3. Programmed Fuel Injection System Inspection
Check the fuel injection system.
Is the fuel injection system normal?
NO - Faulty fuel injection system (page 5-68).
YES - GO TO STEP 4.
4. Cylinder compression Inspection
Test t he cylinder com pression.
Is the compression as specified?
NO - • Valve stuck open
• Worn cylinder and piston rings
• Damaged cylinder head gasket
• Seized valve
• Improper valve timing
YES - GO TO STEP 5.
5. Engine Start Condition
Start by f ollowing the no rm al procedure.
Does the engine start but stops?
Yes - • Leaking insulator
• Faulty starter valve
• Improper ignition timing (Faulty ECM or ignition pulse generator)
• Contaminated fuel
ENGINE LACKS POWER
23-2
1. Drive Train Inspection
Ra ise wheel off the g ro und and sp in by hand.
Does the wheel spin freely?
NO - • Brake dragging
• Worn or damaged wheel bearings
• Drive chain adjustment too tight
• Wheel installed improperly
YES - GO TO STEP 2.