Maintenance
53
EMU46891
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 passag-
es. 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
Actions
Initial
Every
Page
20 hours (3
months)
100 hours (1
year)
300 hours (3
years)
500 hours (5
years)
Anode(s) (external)
Inspection or replacement
as necessary
Battery (electrolyte level,
terminal)
Inspection
Battery (electrolyte level,
terminal)
Fill, charging or replacing
as necessary
—
Cooling water leakage
Inspection or replacement
as necessary
—
Cowling lock lever
Inspection
Engine starting condi-
tion/noise
Inspection
Engine idle speed/noise
Inspection
Engine oil
Replacement
—
Engine oil filter (cartridge)
Replacement
—
Fuel filter (can be disas-
sembled)
Inspection or replacement
as necessary
Fuel line (DI pressure)
Inspection
—
Fuel line (DI pressure)
Inspection or replacement
as necessary
—
Fuel line (High pressure)
Inspection
—
Fuel line (High pressure)
Inspection or replacement
as necessary
—
Fuel line (Low pressure)
Inspection
—
Fuel line (Low pressure)
Inspection or replacement
as necessary
—
Fuel pump
Inspection or replacement
as necessary
—
Fuel/engine oil leakage
Inspection
—
Gear oil
Replacement
Greasing points
Greasing
Impeller/water pump hous-
ing
Inspection or replacement
as necessary
—
Impeller/water pump hous-
ing
Replacement
—
OCV (Oil Control Valve) fil-
ter
Replacement
—
Power trim and tilt unit
Inspection
Propeller/propeller nut/cot-
ter pin
Inspection or replacement
as necessary
PCV (Pressure Control
Valve)
Inspection or replacement
as necessary
—
Spark plug(s)
Inspection or replacement
as necessary
—
U6GR30E0.book Page 53 Thursday, April 12, 2018 9:28 AM
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2019 Yamaha Motor Corporation, U.S.A.