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Maintenance
Outboard motors operating under any of
these above conditions require more frequent
maintenance. Yamaha recommends that you
do this service twice as often as specified in
the maintenance chart. For example, if a par-
EMU34446
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
Anode(s) (external)
Anode(s) (cylinder
head)
Anode(s) (cylinder
head)
Battery (electrolyte lev-
el, terminal)
Battery (electrolyte lev-
el, terminal)
Cooling water leakage
Cowling lock lever
Engine starting condi-
tion/noise
Engine idle
speed/noise
Engine oil
60
Actions
Inspection or replace-
ment as necessary
Inspection or replace-
ment as necessary
Replacement
Inspection
Fill, charging or replac-
ing as necessary
Inspection or replace-
ment as necessary
Inspection
Inspection
Inspection
Replacement
ticular service should be done at 50 hours, do
it instead at 25 hours. This will help prevent
more rapid deterioration of engine compo-
nents.
Initial
20 hours
100 hours
(3 months)
(1 year)
Every
300 hours
500 hours
(3 years)
(5 years)
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