Contents - Yamaha 55DEHD Service Manual

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Troubleshooting the power unit
Troubleshooting the power unit
Symptom 1: Specific trouble conditions.
Symptom 2: Trouble conditions of an area or individual part.
Cause 1: The content considered as the trouble factors of symptom 2.
Cause 2: The content considered as the trouble causes of cause 1 (described if necessary).
Symptom 1: Engine does not crank
Symptom 2
Starter motor
does not
operate
WD: See the wiring diagram
9-1
Troubleshooting
Cause 1
Gear shift not in the "N"
position
Loose connection of
battery terminal
Discharged battery
Blown fuse (20A)
Engine start switch
malfunction
Starter relay
malfunction
Neutral switch
malfunction
Short or open connec-
tion in starter motor cir-
cuit
Starter motor
malfunction
Cause 2 Checking step
Set the gear shift to "N"
—
position
Check the battery
—
terminal connection.
Check the battery for
— electrolyte level, gravity
and voltage.
— Check the fuse (20A).
Check the engine start
—
switch.
— Check the starter relay.
— Check for continuity.
Check the wiring har-
—
ness for continuity.
Disassemble and
—
check the starter motor.
Refer
to
page
3-13
—
3-19
8-9
8-9
8-11
8-11
(EHD)
WD
8-12
6885J11