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3-34 FUEL SYSTEM (DFI)
Troubleshooting the DFI System
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 îž‘ fine, îž‘ cloudy, îž‘ rain, îž‘ snow, îž‘ always, îž‘ other:
Temperature îž‘ hot, îž‘ warm, îž‘ cold, îž‘ very cold, îž‘ always, îž‘ other:
Problem
frequency
îž‘ chronic, îž‘ often, îž‘once
Road îž‘
street, îž‘ highway, îž‘ mountain road (îž‘ uphill, îž‘ downhill), îž‘ bumpy, îž‘ pebble
Altitude îž‘ normal, îž‘ high (about 1 000 m or more)
Motorcycle conditions when problem occurred.
îž‘
goes on immediately after turning the ignition switch on, and goes off after about
1 second (normal)
îž‘ goes on immediately after turning the ignition switch on, goes off after about 1
second, and goes on again after about 10 seconds (ECU communication error)
îž‘ goes on immediately after turning the ignition switch on, goes off after about 1
second, and goes on again and stays on [DFI problem]
Yellow engine
warning
indicator
(LED)
îž‘ does not go on after turning the ignition switch on [indicator (LED), meter unit
fault]
îž‘
Starts blinking about 1 second after ignition switch on, and the immobilizer
warning indicator on the LCD starts blinking (immobilizer system problem).
îž‘
Does not go on about 1 second after ignition switch on (ECU or meter unit fault).
Red warning
indicator
(LED)
îž‘
light up (battery, oil pressure, water temperature, immobilizer or meter unit
problem)
îž‘ starter motor not rotating.
îž‘ starter motor rotating but engine do not turn over.
îž‘ starter motor and engine do not turn over.
îž‘ no fuel flow (îž‘ no fuel in tank, îž‘ no fuel pump sound).
îž‘ no spark.
Starting
difficulty
îž‘ other:
îž‘ right after starting.
îž‘ when opening throttle grip.
îž‘ when closing throttle grip.
îž‘ when moving off.
îž‘ when stopping the motorcycle.
îž‘ when cruising.
Engine stalls
îž‘ other:
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