Checking The Charge Coil - Yamaha 25BMH Service Manual

– +
ELEC
IGNITION SYSTEM

CHECKING THE CHARGE COIL

1. Measure:
• Charge coil resistance
Out of specification → Check the
peak voltage.
Charge coil resistance
342 - 418 Ω Ω Ω Ω
Measuring steps
(1) Disconnect the Brown (Br) and Blue (L)
leads from the wire harness.
(2) Connect the tester to the charge coil as
shown.
2. Measure:
• Charge coil output peak voltage
Below specification → Replace.
Charge coil output peak voltage
r r r r / / / / m m m m i i i i n n n n
O O O O p p p p e e e e n n n n e e e e d d d d
D D D D . . . . C C C C . . . . V V V V . . . .
NOTE:
For the peak voltage measurement, connect
the adaptor as the illustration
open circuit, and as the illustration
the closed circuit.
8-8
Br - L
Br – L
C C C C r r r r a a a a n n n n k k k k i i i i n n n n g g g g 1 1 1 1 , , , , 5 5 5 5 0 0 0 0 0 0 0 0
C C C C l l l l o o o o s s s s e e e e d d d d
1 1 1 1 4 4 4 4 6 6 6 6 1 1 1 1 46 46 1 1 1 1 50 50
46 46 50 50
A
E
3 3 3 3 , , , , 5 5 5 5 0 0 0 0 0 0 0 0
1 1 1 1 50 50
50 50
for the
B
for