Greasing. Yamaha 115, ME-10

EMU28932

Greasing

Yamaha marine grease (Water resistant grease)

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Maintenance

EMU28955

Cleaning and adjusting spark plug

The spark plug is an important engine component and is easy to inspect. The condition of the spark plug can indicate something about the condition of the engine. For example, if the center electrode porcelain is very

ZMU04149 white, this could indicate an intake air leak or carburetion problem in that cylinder. Do not attempt to diagnose any problems yourself.

Instead, take the outboard motor to a

Yamaha dealer. You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug

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