Greasing; Cleaning And Adjusting Spark Plug - Yamaha F100D Owner's Manual

EMU28941

Greasing

Yamaha grease A (water resistant grease)
Yamaha grease D (corrosion resistant grease; for propeller shaft)
F80B, F100D
EMU28953

Cleaning and adjusting spark plug

EWM00560
WARNING
When removing or installing a spark plug,
be careful not to damage the insulator. A
damaged insulator could allow external
sparks, which could lead to explosion or
fire.
EWM01550
WARNING
The engine will still be very hot when it has
just been turned off. Take extremely care
so that neither you nor anyone else gets
burnt. To avoid burns, work on the engine
when it has cooled down.
The spark plug is an important engine compo-
nent 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 white, this
could indicate an intake air leak or carburetion
problem in that cylinder. Do not attempt to di-
agnose any problems yourself. Instead, take
Maintenance
ZMU04266
61