CHARGING SYSTEM

ELEC +i

EAS00773

CHARGING SYSTEM

CIRCUIT DIAGRAM

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Y

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8-24

EAS00774

TROUBLESHOOTING

The battery is not being charged.

Check:

1 . main fuse

2. battery

3. charging voltage

4. stator coil resistance

5. wiring connections

(of the entire charging system)

NOTE:

8 Before troubleshooting, remove the following part(s):

1 . battery cover/front cover

2. side cover(right)

3. front fork upper cover

4. front fork cover(left and right)

5. leg shield1

8 Troubleshoot with the following special tool(s).

CHARGING SYSTEM

ELEC +i

EAS00739

2. Battery

• Check the condition of the battery.

Refer to “CHECKING AND CHARGING

THE BATTERY” in chapter 3. a

Minimum open-circuit voltage

12.8 V or more at 20°C (68°F)

• Is the battery OK?

V

YES

I

NO

• Clean the battery terminals.

• Recharge or replace the battery.

EAS00775

3. Charging voltage

• Connect the digital tachometer to the spark plug lead of cylinder.

• Connect the pocket tester (DC 20 V) to the battery as shown.

Digital tachometer

90890-06760

Pocket tester

90890-03112

YU-03112-C

Positive tester probe terminal

Negative tester probe terminal positive battery negative battery

EAS00738

1 . Main fuse

• Check the fuse for continuity.

Refer to “CHECKING THE FUSE” in chapter 3.

• Is the fuse OK?

YES

V

NO

*

Replace the fuse.

• Start the engine and let it run at approximately 5,000 r/min.

• Measure the charging voltage. a

Charging voltage

14 V at 5000r/min

8-25

NOTE:

Make sure the battery is fully charged.

• Is the charging voltage within specification?

*

NO YES l z

The charging circuit is

OK.

EAS00776

4. Stator coil resistance

• Disconnect the starter coil coupler from wireharness.

• Connect the pocket tester ( Q x 1) to the stator coil as shown.

CHARGING SYSTEM

ELEC +i

EAS00779

5. Wiring

• Check the wiring connections of the entire charging system.

Refer to “CIRCUIT DIAGRAM”.

• Is the charging system’s wiring properly connected and without defects?

YES

V

Replace the rectifier/regulator.

4

NO

Properly connect or repair the charging system’s wiring.

Positive tester probe -» white 1

Negative tester probe -> white 2

• Measure the stator coil resistances.

SI Stator coil resistance

0.28 ~ 0.42 at 20°C (68°F)

• Is the stator coil OK?

V

YES NO 4

Replace the crankshaft position sensor/ stator coil assembly.

8-26