SELVA MARINE Blue Whale 250 EFI Service Manual page 362

TRBL
SHTG
Troubleshooting the power unit (trouble code not detected)
Troubleshooting when a trouble code is not available consists of the following 4 items.
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 Discharged battery
does not
Loose
operate
battery terminal
Short, open, or loose
connection in starter
motor circuit
Starter relay malfunc-
tion
Blown fuse
Starter motor malfunc-
tion
Engine
malfunction
Gear shift not in the
neutral position
Starter motor Stuck piston
operates, but
Piston lock due to water
the engine does
or oil in the combustion
not crank
chamber
Salt buildup on the
drive shaft and bushing
Starter motor malfunc-
tion
*1: See the wiring diagram.
9-17
Troubleshooting
Cause 1
connection
start switch
Cause 2
—
of
—
—
—
—
—
—
—
—
—
—
Checking step
Check the battery.
Check the battery ter-
minal.
Check the wiring har-
ness continuity.
Check the starter relay.
Check the fuse.
Disassemble and check
the starter motor.
Check the engine start
switch.
Shift the remote control
lever to the neutral
position.
Disassemble and check
the power unit.
Disassemble and check
the upper case.
Disassemble and check
the starter motor.
Refer
to
page
3-15
3-15
*1
8-32
8-5
8-34
8-20
1-42
5-1
7-5
8-34
6P23H11