Honda CBF600SA Service Manual page 616

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys.
POOR PERFORMANCE AT LOW AND IDLE SPEED
1. Spark Plug Inspection
Remove and inspect spark plugs.
Are the spark plugs in good condition?
YES
NO
2. Ignition Timing Inspection
Check the ignition timing.
Is the ignition timing as specified?
YES
NO
3. Fuel Pump Inspection
Inspect the fuel flow.
Is the fuel pump unit normal?
YES
NO
4. PGM-FI System Inspection
Check the PGM-FI system.
Is the PGM-FI system normal?
YES
NO
5. IACV Inspection
Check the IACV operation (page 5-90).
Does the IACV operates normally?
YES
NO
6. Intake Pipes Leaking Inspection
Check for leaks at the insulators or air cleaner housing.
Are there leaks?
YES
email: info@motomatrix.co.uk
– GO TO STEP 2.
– • Plugs not serviced frequently enough
• Incorrect spark plug heat range
• Incorrect spark plug gap
– GO TO STEP 3.
– • Faulty ECM
• Faulty CKP sensor
• Faulty VS sensor
• Improper valve timing
– GO TO STEP 4.
– Faulty fuel pump unit (page 5-56).
– GO TO STEP 5.
– Faulty PGM-FI system (page 5-11).
– GO TO STEP 6.
– Faulty IACV.
– • Loose insulator
• Damaged insulator
• Damaged air cleaner housing
TROUBLESHOOTING
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