Yamaha 9.9 15 Outboard Motor User Manual


 
Maintenance
44
repair establishment or individual. All war-
ranty repairs, however, including those to
the emission control system, must be per-
formed by an authorized Yamaha marine
dealership.
A service manual is available for purchase
through your Yamaha dealer for owners who
have the mechanical skills, tools, and other
equipment necessary to perform mainte-
nance not covered by this owners manual.
EMU28511
Replacement parts
If replacement parts are necessary, use only
genuine Yamaha parts or parts of equivalent
design and quality. Any part of inferior quality
may malfunction, and the resulting loss of
control could endanger the operator and pas-
sengers. Yamaha genuine parts and acces-
sories are available from your Yamaha
dealer.
EMU35520
Maintenance interval guidelines
The service intervals provided in the Mainte-
nance Chart were developed based upon
typical use that includes operating at varied
speeds, with sufficient time for engine warm
up and cool-down, a medium to light load, and
an average cruising speed near the 3000 to
4000 rpm range. As with any engine, howev-
er, if your normal operating conditions are dif-
ferent, you should consider service more
often than shown, especially how often you
change your engine and gear oil. Examples
might include extended wide-open-throttle
use or long periods of trolling or idling, carry-
ing heavy loads, or frequent starting and stop-
ping or shifting. More frequent maintenance
will often pay off many times over in increased
engine life and greater owner satisfaction.
Consult your Yamaha dealer for additional
maintenance recommendations.
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