Maintenance
37
EMU28931
Greasing
Yamaha marine grease (Water resistant grease)
EMU28951
Cleaning and adjusting spark plug
WARNING
EWM00560
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.
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
the outboard motor to a Yamaha dealer. You
should periodically remove and inspect the
U63V17E0.book Page 37 Thursday, February 26, 2004 11:52 AM
Summary of Contents for 9.9D
Page 1: ...9 9D ...
Page 2: ...ZMU01690 ...
Page 56: ...Consumer information 51 EMU29811 Important warranty information for U S A and Canada ...
Page 57: ...Consumer information 52 ...
Page 59: ...Consumer information 54 ...
Page 60: ...Consumer information 55 ...
Page 63: ...PLACE POSTAGE HERE ATTN WARRANTY DEPARTMENT ...
Page 64: ......