Yamaha Outboard Motors Factory Service Manual F6 and F8, Page 450Get this manual

Yamaha Outboard Motors Factory Service Manual F6 and F8, Page 450

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IGNITION SYSTEM CHECKING THE SPARK PLUGS
Replace the

CHECKING THE SPARK PLUG CAPS AND IGNITION COIL

1 Check: Spark plug cap High tension code Ignition coil Loosen conne