Charging System; Stator Coil Check; Rectifier/Regulator Check - Yamaha Waverunner VXS VX1800 Service Manual

Charging system

Stator coil check

1. Disconnect the stator coil coupler "a", and
then connect the special service tool "1".
2. Measure the stator coil output peak volt-
age.
G
G
G
a 1
1
a
Test harness (3 pins) "1"
90890-06870
Test harness (3 pins) "1"
YB-06870
Output peak voltage
Green (G)–Green (G)
r/min
Cranking
V 8.3
3. Disconnect the special service tool.
4. Measure the stator coil resistance. Re-
place the stator coil if out of specification.
Measure the rectifier/regulator output peak
voltage if within specification.
G
G
G
W R B
B
R
W
Unloaded
2000 3500
36.4 64.7
Resistance
0.27–0.40 Ω
Green (G)–Green (G)
5. Connect the stator coil coupler.

Rectifier/regulator check

1. Disconnect the rectifier/regulator coupler
"a", and then connect the special service
tool "1".
2. Measure the rectifier/regulator output peak
voltage.
TIP:
Do not use the peak voltage adapter to mea-
sure the output voltage.
1
a
Test harness (2 pins) "1"
90890-06850
Test harness (2 pins) "1"
YW-06850
7-13
Charging system
G
G
G
G
G
G
R
B
R B
a 1
R
B