Outline
10-1
Outline
• To obtain long product life, Yamaha strongly recommends that the specified periodic checks and
maintenance be performed according to the maintenance interval charts.
• If
replacement parts are necessary, use only genuine Yamaha parts of equivalent design and quality.
Any parts of inferior quality may cause a malfunction, and the resulting loss of control could endanger
the operator and passengers. Yamaha genuine parts and accessories are available from Yamaha
dealers.
• The service intervals provided in
the maintenance interval charts are based upon “typical” operating
conditions that include speed variations, sufficient time for engine warm up and cool-down, medium
to light load, and an average cruising speed in the 3000–4000 r/min range. If your normal operating
conditions are more intensive, more frequent servicing will be required, especially the engine oil and
gear oil changes. Examples of the intensive operation will be: wide-open-throttle, trolling, or idling op-
eration for extended periods of time, carrying heavy loads, and frequent starting
and stopping or shift-
ing. In most cases, the frequent maintenance pays off in increased engine life and greater owner
satisfaction.
• The maintenance cycle o
n these charts is based on usage of 100 hours per year and regular flushing
of the cooling water passages. Adjust the maintenance frequency when operating the engine under
adverse conditions, such as extended trolling.
• Disassembly or repairs may
be necessary depending on the outcome of maintenance checks.
• Expendable or
consumable parts and lubricants will lose their effectiveness over time and through
normal usage regardless of the warranty period.
• When
operating the outboard motor in salt water, or in muddy, turbid (cloudy), or acidic water, flush
the engine using clean water after each use.
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