Sample diagnosis sheet, Troubleshooting the dfi system – Kawasaki STX-15F User Manual

Page 79

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FUEL SYSTEM (DFI) 3-25

Troubleshooting the DFI System

Sample Diagnosis Sheet

Rider name:

Registration No. (license plate No.): Year of initial registration:

Model:

Engine No.:

Hull No.:

Date problem occurred:

Mileage:

Environment when problem occurred.

Weather

□

fine,

□

cloudy,

□

rain,

□

snow,

□

always,

□

other:

Temperature

□

hot,

□

warm,

□

cold,

□

very cold,

□

always

Problem
frequency

□

chronic,

□

often,

□

once

Altitude

□

normal,

□

high (about 1 000 m or more)

Watercraft conditions when problem occurred.

□

turn on immediately after ignition switch ON, and turn off after 1

∼

2 seconds

(normal).

□

lights blink after ignition switch ON, and stay on (DFI problem)

Warning
LED light, FI
character, FI
mark

□

unlights (LED light, meter unit, ECU or its wiring fault).

□

sometimes lights up (probably wiring fault).

□

starter motor not rotating.

Starting
difficulty

□

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 flooding).

□

no spark.

□

other:

□

right after starting.

Engine stalls

□

when opening throttle lever.

□

when closing throttle lever.

□

when moving off.

□

when stopping the watercraft.

□

when cruising.

□

other:

□

very low idle speed,

□

very high idle speed,

□

rough idle speed.

Poor running at
low speed

□

battery voltage is low (charge the battery).

□

spark plug loose (tighten it).

□

spark plug dirty, broken, or gap maladjusted (remedy it).

□

backfiring.

□

afterfiring.

□

hesitation when acceleration.

□

engine oil viscosity too high.

□

engine overheating.

□

other:

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