Sym RS-50 Service Manual page 143

15. ELECTRICAL EQUIPMENT
Ignition Coil Inspection
Remove left side cover.
Measure the primary coil resistance
Resistance :0.19~0.23KΩ (A)→ (B)
Measure the secondary coil resistance
Resistance : 8.2~9.3KΩ (A)→ (C)
(A)
(B)
Remove the high voltage coil cap, and measure its
negative (-) terminal for the secondary coil
resistance.
Resistance : 3.1~3.2KΩ (A)→ (D)
Electrical System Circuit Inspection
Pulse Generator/Exciting Coil
Remove body cover.
Disconnect alternator coupler.
Resistance Measurement: (20℃)
Pulse generator coil (blue/yellow - ground):
50~200Ω
Exciting (yellow - ground): 400~800Ω
15-10
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(C)
(D)
IG. Coil
AC generator
harness coupler