Poor Performance At Low And Idle Speed - Honda VT750C2 Shadow Spirit Service Manual

TROUBLESHOOTING
POOR PERFORMANCE AT LOW AND IDLE SPEED
1. Pilot Screw Inspection
Check carburetor pilot screw adjustment.
Is the adjustment correct?
NO - See page 6-25
YES - GO TO STEP 2.
2. Intake Air Leak Inspection
Check the carburetor insulator and intake manifold for leaks.
Are these leaks?
YES - . Loose insulator bands
• Damaged insulator
• Faulty O-ring
NO - GO TO STEP 3.
3. Spark Test
Perform spark test.
Is there weak or intermittent spark?
YES _. Faulty spark plug
• Fouled spark plug
• Loose or disconnected ignition system wires
• Faulty ignition pulse generator
• Faulty ignition coil
• Faulty engine stop switch
• Faulty ICM
NO - GO TO STEP 4.
4. Ignition TIming Inspection
Check ignition timing.
Is the ignition timing correct?
NO - . Faulty ICM
• Faulty ignition pulse generator
• Faulty TP sensor
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