Maintenance
EMU46071
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
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 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) (internal)
*1
Anode(s) (internal)
*2
Battery (electro-
lyte level, terminal)
Battery (electro-
lyte level, terminal)
Cooling water
leakage
Cowling lock lever
Engine starting
condition/noise
Engine idle
speed/noise
Engine oil
Engine oil filter
(cartridge)
76
Actions
Inspection or re-
placement as nec-
essary
Inspection or re-
placement as nec-
essary
Replacement
Inspection
Fill, charging or re-
placing as neces-
sary
Inspection or re-
placement as nec-
essary
Inspection
Inspection
Inspection
Replacement
Replacement
Initial
20 hours
100 hours
(3
(1 year)
months)
Every
300 hours
500 hours
(3 years)
(5 years)
Page
88
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54, 56
59
81
81
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