Poor Performance At Low And Idle Speed - Honda XL200 2001 Shop Manual

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11. Check for engine overheating
NOT OVERHEATING
12. Accelerate or run at high speed
ENGINE DOES NOT KNOCK

POOR PERFORMANCE AT LOW AND IDLE SPEED

1. Check ignition timing
CORRECT
2. Check carburetor pilot
screw adjustment
CORRECT
3. Check for leaking intake pipe
NO LEAK
4. Perform spark test
GOOD SPARK
OVERHEATING
ENGINE KNOCKS
INCORRECT
INCORRECT
LEAKING
WEAK OR INTERMITTENT SPARK
TROUBLESHOOTING
Possible cause
• Excessive carbon build-up in
combustion chamber
• Use of poor quality fuel
• Clutch slipping
• Lean fuel mixture
• Wrong type of fuel
• Worn piston and cylinder
• Wrong type of fuel
• Excessive carbon build-up in
combustion chamber
• Ignition timing too advanced (Faulty
CDI unit)
• Lean fuel mixture
Possible cause
• Improper ignition timing (Faulty CDI unit)
• See section 4
• Loose insulator clamp
• Damaged insulator
• Faulty carbon or wet fouled spark plug
• Faulty CDI unit
• Faulty ignition coil
• Broken or shorted spark plug wire
• Faulty engine stop switch
• Faulty pulse generator
• Faulty ignition switch
• Loose or disconnected ignition system
wires
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