2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 276Get this manual

2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 276

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Electrical systems
2 Disconnect the ignition coil couplerDynamic spark tester: YM-34487 3 Set the spark gap length on the adjusting knob

3 Measure the ignition coil resistanceReplac