Mobile 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 (cyclinder 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/Repalce



Fuel PumpCheck/Repalce



Fuel/Oil leakageCheck



Gear oilRepalce



Greasing pointsLubricate



ImpellerCheck/Repalce



Impeller/Water pump housingCheck/Repalce



OCV filterRepalce



PTT unitCheck



Propeller/Propeller nut/Cotter pinCheck/Replace



Spark PlugsCheck/Repalce



Ignition coils/Ignition couil leadsCheck/Repalce



Pilot WaterCheck



ThermostatCheck/Repalce



Timing BeltCheck/Repalce



Valve clearanceCheck/Adjust



Water InletCheck



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



Wiring harness connections/Lead coupler connectionsCheck/Replace



Yamaha meter/GuageCheck





Maintenance Interval Chart 2

ItemActions
Every 1,000 hours
Exhaust guide/Exhaust manifoldCheck/Repalce
Timing beltRepalce