Troubleshooting the DFI System
Sample Diagnosis Sheet
Registration No. (license plate No.):
Date problem occured:
□ fine, □ cloudy, □ rain, □ snow, □ always, □ other:
□ hot, □ warm, □ cold, □ very cold, □ always
□ chronic, □ often, □ once
□ street, □ highway, □ mountain road (□ uphill, □ downhill), □ bumpy, □ pebble
□ normal, □ high (about 1000 m or more)
□ light up immediately after ignition SW ON, and goes off after 1 ∼ 2 seconds
□ lights blinks immediately after ignition SW ON, and stays on (DFI problem)
□ lights up immediately after ignition SW ON, but goes off after about 10
seconds (DFI problem).
□ unlights (LED light, ECU or its wiring fault).
□ sometimes lights up (probably wiring fault).
□ starter motor not rotating.
□ starter motor rotating but engine doesn't turn over.
□ starter motor and engine don't turn over.
□ no fuel flow (□ no fuel in tank, □ no fuel pump sound).
□ engine flooded (do not crank engine with throttle opened, which promotes engine
□ no spark.
□ choke lever is not pulled fully when using the lever (pull it fully when using).
□ right after starting.
□ when opening throttle grip.
□ when closing throttle grip.
□ when moving off.
□ when stopping the motorcycle.
□ when cruising.
Environment when problem occurred.
Motorcycle conditions when problem occurred.
FUEL SYSTEM (DFI) 3-29
Year of initial registration: