Maintenance
67
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.
EMU34445
Maintenance chart 1
TIP:
●
Refer to the sections in this chapter for explanations of each owner-specific action.
●
The maintenance cycle on these charts assume usage of 100 hours per year and regular
flushing of the cooling water passages. Maintenance frequency should be adjusted when op-
erating 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 in salt water, muddy, other turbid (cloudy), acidic water, the engine should
be flushed with clean water after each use.
The “
” symbol indicates the check-ups which you may carry out yourself.
The “
” symbol indicates work to be carried out by your Yamaha dealer.
Item
Actions
Initial
Every
20 hours
(3 months)
100 hours
(1 year)
300 hours
(3 years)
500 hours
(5 years)
Anode(s) (external)
Inspection or replace-
ment as necessary
Anode(s) (cylinder
head, thermostat cov-
er)
Inspection or replace-
ment as necessary
Anodes (exhaust cover,
cooling water passage
cover, Rectifier Regula-
tor cover)
Replacement
Battery (electrolyte lev-
el, terminal)
Inspection
Battery (electrolyte lev-
el, terminal)
Fill, charging or replac-
ing as necessary
Cooling water leakage
Inspection or replace-
ment as necessary
U6P219E0.book Page 67 Tuesday, March 17, 2009 4:38 PM
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2019 Yamaha Motor Corporation, U.S.A.
