Yamaha Two Stroke Outboard Motor Service Intervals

Note: When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use.

After First Ten Hours or 30 Days:

• Battery: Inspect/charge
• Fuel filter: Inspect/clean
• Fuel System: Inspect
• Gear Oil: Change
• Idling Speed (carburetor models): Inspect/adjust
• Oil Pump: Inspect/adjust
• Oil Tank Water Drain: Inspect/clean

After First 50 Hours or 90 Days:

• Anode(s) (external): Inspect/replace
• Cooling water passages: Clean
• Fuel filter: Inspect/clean
• Fuel System: Inspect
• Propeller & Cotter Pin: Inspect/replace
• Oil Tank Water Drain: Inspect/clean

Every 100 Hours or 6 Months

• Anode(s) (external): Inspect/replace
• Cooling Water Passages: Cleaning
• Fuel Filter: Inspection/Cleaning
• Fuel System: Inspection
• Gear Oil: Change
• Greasing Points: Grease
• Idling Speed (carburetor models): Inspect/adjust
• Propeller & Cotter Pin: Inspect/replace
• Oil Tank Water Drain: Inspect/Clean
• High Pressure Fuel Pump drive belt (HPDI units): Inspect/replace

Every 200 Hours or Yearly

• Anode(s) (external): Inspect/replace
• Anode(s) (internal): Inspect/replace
• Cooling Water Passages: Cleaning
• Cowling clamp: Inspect
• Fuel Filter: Inspection/Cleaning
• Fuel System: Inspection
• Gear Oil: Change
• Greasing Points: Grease
• Idling Speed (carburetor models): Inspect/adjust
• Idling Speed (EFI Models): Inspect/adjust
• PCV: Inspect
• Power Trim & Tilt Unit: Inspect
• Propeller & Cotter Pin: Inspect/replace
• Shift link/Shift cable: Inspect/adjust
• Thermostat: Inspect
• Throttle link/cable/pick-up timing: Inspect/adjust
• Water pump: Inspect
• Oil Tank Water Drain: Inspect/Clean
• High Pressure Fuel Pump drive belt (HPDI units): Inspect/replace
• Throttle Position Sensor (HPDI units): Inspect/adjust

Note: When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use.