In-House Maintenance

From their painstaking design to their meticulous construction, Yamaha outboards are manufactured to provide you with years of enjoyment. However, they live in one of the harshest environments imaginable. High load, high-RPM operation, extreme temperatures and humidity, saltwater, sun, even long periods of non-use can all exact a heavy toll. And it’s not just Yamaha outboards. All outboards face these same challenges. Regular maintenance is important in helping your outboard meet the demands of these challenging environments, and only you can make sure it happens.


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In the Maintenance section of your Yamaha Service Manual, these Maintenance Intervals are provided.

Maintenance Interval Chart 1

ItemActions20 hours
(3 months)
100 hours
(1 year)
300 hours
(3 years)
500 hours
(5 years)
Anodes (externalCheck/Replace



Anodes (cylinder head exhaust passage)Check/Replace



Anodes (cylinder head, cylinder block thermostat portion, oil cooler cover, exhaust guide)Replace



Battery (electrolyte level terminal)Check.Charge/Replace



Cooling Water leakageCheck/Replace



Cowling lock leverCheck



Engine starting condition/NoiseCheck



Engine idle speed/NoiseCheck



Engine oilReplace



Engine oil filterReplace



Fuel filter (can be disassembled)Check/Replace



Fuel hose (high pressure)Check/Replace



Fuel hose (low pressure)Check/Replace




Fuel PumpCheck/Replace




Fuel/Oil leakageCheck



Gear oilReplace



Greasing pointsLubricate



ImpellerCheck/Replace




Impeller/Water pump housingCheck/Replace




OCV filterReplace



PTT unitCheck



Propeller/Propeller nut/Cotter pinCheck/Replace



Spark PlugsCheck/Replace




Ignition coils/Ignition coil leadsCheck/Replace




Pilot WaterCheck



ThermostatCheck/Replace




Timing BeltCheck/Replace




Valve clearanceCheck/Adjust



Water InletCheck



Engine start switch/Main switch/Engine start/stop button/Engine shut-off switchCheck/Replace




Wiring harness connections/Lead coupler connectionsCheck/Replace



Yamaha meter/GaugeCheck





Maintenance Interval Chart 2

ItemActions
Every 1,000 hours
Exhaust guide/Exhaust manifoldCheck/Replace
Timing beltRepplace