Output Voltage Test - TGB EST 1000 Service Manual

2. Increase engine RPM and read voltage.
If voltage is above specification, replace
voltage rectifier.
If voltage is below specification, check stator
output and wiring harness prior to concluding
that voltage rectifier is defective.

Output Voltage Test

1. Connect multimeter to battery posts.
2. Start engine.
3. Increase engine RPM and read voltage with
multimeter.
Test engine speed 4000 RPM = 14.8 +/- 0.4
Vdc
If voltage is above specification, replace voltage
rectifier.
If voltage is below specification, check stator
and wiring harness prior to concluding that
voltage rectifier is defective.
TROUBLESHOOTING
BATTERY REGULARLY DISCHARGED OR
WEAK
1. Loose or corroded battery cables
connections.
- Tighten or repair battery cables
connections.
2. Worn or defective battery.
- Change and test battery.
3. Defective magneto stator.
- Test stator.
4. Defective rectifier.
- Test system voltage.
5. Damaged magneto rotor or Woodruff key.
- Replace magneto rotor or Woodruff key.
PROCEDURE
VOLTAGE RECTIFIER
The rectifier is located on the RH, underneath
the rear cover beside the RH side cover.
8-1. ELECTRIC SYSTEM
8-1-9