Honda 2004 CRF250X - POOR PERFORMANCE AT LOW AND IDLE SPEED

I
POOR PERFORMANCE AT LOW AND IDLE SPEED
1. Pil ot Sc rew In spection
Check carburetor pilot screw adjustment.
Is th e ad jus tm e nt corre ct ?
NO - See page 5-27
YES - GO TO STEP 2.
2. Accelerator Pump In spection
Check accelerator pump for clogs.
Is
the acc eJ era tor pump cl og ged?
YES - Accele rator not serviced frequently enough
NO - GO TO STEP 3.
3. Intake Air l ea k Inspection
Check for leaking carburetor insulator.
Is there Jeak ing?
YES - . loose carburetor insulator bands
• Damaged insulator
NO - GO TO STEP 4.
4. Spark T es t
Perform spark test.
Is ther e we ak or intermittent spark?
YES _ . Faulty spark plug
• Fouled spark plug
• Loose or disconnected ignition system wires
• Broken or shorted direct ignition coil wire
• Faulty direct ignition coil
• Faulty ignition pulse gener ator
• Faulty exciter coil
•
Faulty engine stop button
• Faulty ignition control module (lCM)
NO
- GO TO STEP 5.
5. Ignition Timing Inspe ct ion
Check ignition timing.
Is the ignition timing correct?
YES - Ignition timing is normal
NO _ . Faulty ignition control module (ICM)
•
Faulty ignition pulse generator
TROUBLESHOOTING
21-5