FUEL SYSTEM (EFI) 3-19
Sample Diagnosis Sheet
Rider name: Registration No. (license plate No.):
Year of initial registration: Model:
Engine No.: Frame No.:
Date problem occurred: Mileage:
Environment when problem occurred.
Weather □fi ne, □cloudy,□rain, □snow, □always, □other:
Temperature □hot, □warm, □cold, □very cold, □always
Problem frequency □chronic, □often, □once
Road □street, □highway, □mountain road (□uphill, □downhill), □bumpy,
□pebble
Altitude □normal, □high (about 1 000 m or more)
Motorcycle conditions when problem occurred.
FI indicator light (LED)
□light up immediately after ignition switch ON, and goes off after 1 ~2
seconds (normal)
□lights blinks immediately after ignition switch ON, and stays on (EFI
problem)
□lights up immediately after ignition switch ON, but goes off after about
10 seconds (EFI problem)
□unlights (light (LED), ECU or its wiring fault)
□sometimes lights up (probably wiring fault)
Starting diffi culty □starter motor not rotating
□starter motor rotating but engine doesn’t turn over
□starter motor and engine don’t turn over
□no fuel fl ow (□no fuel in tank, □no fuel pump sound)
□engine flooded (do not crank engine with throttle opened, which
promotes engine fl ooding)
□no spark
□other
Engine stops □right after starting
□when opening throttle grip
□when closing throttle grip
□when moving of
f
□
when stopping the motorcycle
□when cruising
□other
Poor running at low speed □very low idle speed, □very high idle speed, □rough idle speed
□battery voltage is low (charge the battery)
□spark plug loose (tighten it)
□spark plug dirty, broken, or gap maladjusted (remedy it)
□backfi ring
□afterfi ring
□hesitation when acceleration
□engine oil viscosity too high
□brake dragging
□engine overheating
□clutch slipping
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