Sakai SV400D-2, Shop Manual

Page: 179 / 218

9-011
ELECTRICAL SYSTEM TROUBLESHOOTING
2-2-2. Engine will not start (but starter motor runs)
Check that fuel is being supplied to the injection pump inlet.
Reference Fig. : 2-2
Check point Check/Cause Action
1. Shutdown Solenoid - When turning starter switch ON, measure voltage between
shutdown solenoid inlet WB wire and chassis ground.
It is normal that electricity flows.
- If electricity flows but the engine does not start, the solenoid
is faulty.
Replace the shutdown
solenoid.
2. Harness Connecting
Between Terminals
- Check harness between terminals for continuity.
- No continuity indicates that harness is open or poorly
connected.
Repair or replace the
harness.
2-2-3. Engine does not stop running
Reference Fig. : 2-2
Check point Check/Cause Action
1. Shutdown Solenoid - When turning starter switch OFF, measure voltage between
shutdown solenoid inlet WB wire and chassis ground.
It is normal electricity does not flows.
- If electricity does not flows but engine does not stop
running, the shutdown solenoid is faulty.
Replace the shutdown
solenoid.
2-2-4. No charging
Reference Fig. : 2-2
Check point Check/Cause Action
1. Alternator (1) When starting starter switch, measure voltage between
alternator pin B+ and chassis ground.
Standard voltage: At least the intermediate engine
speed, or 15 V or more
(2) When starting starter switch, the measured voltage
between alternator pin D+ and chassis ground must be
15 V or higher.
- If above item (1) is NG, the alternator is faulty.
- If above item (1) is OK and item (2) is NG, the regulator is
faulty.
- If battery is not charged even though above items (1) and (2)
are OK, the battery is faulty.
Replace the alternator.
Replace the regulator.
Replace the battery.
2-2-5. Starter motor runs even without forward/reverse lever in neutral
Reference Fig. : 2-2
Check point Check/Cause Action
1. F-R Lever Switch
(Neutral Start Switch)
(1) When turning forward/reverse lever to forward with starter
switch is OFF, check continuity between F-R lever switch
COM terminal and NC terminal.
(2) When turning forward/reverse lever to reverse with starter
switch is OFF, check continuity between F-R lever switch
COM terminal and NC terminal.
- No continuity indicates normal condition. If any continuity is
present, the F-R lever switch is faulty.
Replace the F-R lever
switch.
•