1983 Yamaha 30EN Outboards Service Manual, Page 122Get this manual

1983 Yamaha 30EN Outboards Service Manual, Page 122

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IGNITION SYSTEM REPLACEMENT
Charge coil resistance: 134n 10 at 20C (68F) (Brown-Black) Lighting coil 1 Disconnect the lighting coil leads from rectifier and connect the pocket tester as shown 2