TOHATSU NB-1000 Service Manual page 263

Rectifier/Regulator Tests
Make sure aIl electrical terminals are connected
during this test except those that are noted in the
test procedure.
Check ior continuity between chassis ground and the
ground connection for the magneto plate, CD Unit,
and ignition coils before conducting the following
procedure.
Reference the following electrical drawings for the
rectifier/regulator test.
4
- Models 25 / 30 / 40.
Models 8 / 9.8 / 9.9 / 15 / 18 optional.
The rectifier/regulator tests check whether the rectifier/regulator (1)
is shorted or open.
1. Disconnect terminals (2), (3), (4) and (5) from all other wiring:
2. Set analog multimeter to check continuity.
3. Insert the banana plug of the RED tester lead into the meter
connection labeled "+VΩ" and the banana plug of the BLACK
tester lead into the meter connection labeled "-COM".
4. Connect the RED and BLACK tester leads to the terminals as
shown and note the results:
• Follow the tests listed in the chart starting at the TOP of each
COLUMN and going DOWN.
• Follow the tests listed in the chart starting at the LEFT of each
ROW and going to the RIGHT.
Replace rectifier/regulator if continuity tests are not as shown. lf
continuity checks are within specifications, proceed to next step.
1-/ 2-Cylinder
NOTE
NOTE
ELECTRICAL SYSTEM
4
T1554
7-71