Poor Performance At Low And Idle Speed - Honda 2010 CRF250R Service Manual

POOR PERFORMANCE AT LOW AND IDLE SPEED
1. Intake Air leak Inspection
Check for leaking insulator.
Is there leaking ?
YES - ' loose
insulator
bands
• Damaged insulator
NO - GO TO STEP 2.
2. Spark Test
Perform spark lest.
Is there weak
or
intermittent spark?
YES - Faulty spark plug
Fouled spark plug
Faulty ignition coil
Broken or shorted spark plug wire
Faulty CKP sensor(s)
Faully alternator coil
Faulty engine slop button
Faulty ECM
NO - GO TO STEP 3.
3. Fuel Pump Inspection
Inspect the fuel now.
Is the fuel pump unit normal?
YES - GO TO STEP 4.
NO - Faulty fuel pump unit
4. Ignition Timing Inspection
Check ignillon liming.
Is the ignition timing
cOffeet?
YES - GO TO STEP 5.
NO - ' Faulty ECM
• Faulty CKP sensor(s)
5. PGM·FI System Inspection
Check the PGM-FI system.
Is the PGM-FI system normal?
NO - Faulty PGM-FI system
TROUBLESHOOTING
18-5