Yamaha VMX12H Supplementary Service Manual page 324

7-21
CHARGING SYSTEM
4. Measure:
coil resistance
O u t of specification
15% of 20°C (68°F)
(White - White)
White
RECTIFIER TEST
1. Check:
element
White
White
White
Red
Black
Pocket Tester
I I
d a
a
a
d
d d
b b
b b d d
d
C
d
C
a
e
e
a
X
Continuity : Discontinuity
NOTE:
The results
"0" or
" X "
cording to the Pocket Tester polarity.
Do not overcharge rectifier or damage may result.
Avoid:
A short
-
+
Inverting and battery leads.
Direct connection of rectifier to battery.
Replace stator coils.
Replace rectifier.
Regulator
Brown
Rectifier
0
0 0
X
X X I 0 0 X
0 0 0 0 X X
0 0 X X
X X
0
X
0
X I X
0 0
X
0
X X
should be reversed ac-
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