Yamaha 25 NMHOS [215/245] 8 7 6 5 4 3 2 1

Yamaha 25 NMHOS [215/245] 8 7 6 5 4 3 2 1
69R3J11
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Ignition and Ignition control system
NOTE:
Remove the all spark plug caps, when mea-
suring the charge coil peak voltage at loaded
engine cranking.
3. Disconnect the charge coil connector.
4. Connect the digital circuit tester to the
charge coil connector.
5. Measure the charge coil resistance.
Replace the charge coil if out of specifi-
cation.
Br
L
69R80150
Charge coil output peak voltage:
Brown (Br)Blue (L)
r/min
Unloaded
Loaded
Cranking 1,500 3,500
DC V 146 146 150 150
Charge coil resistance
(reference data):
Brown (Br)Blue (L)
342418 at 20°C (68°F)
Checking the thermoswitch (W)
1. Check the switch for continuity.
a Temperature
b Time
c No continuity
d Continuity
Thermoswitch continuity
temperature (reference data):
Pink (P)Black (B)
e: 106114 °C (222.8237.2°F)
f:88102 °C (190.4215.6°F)
69R3J11_08 7/5/06 3:17 PM Page 11

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