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Background
Yamaha outboard motors are marine propulsion engines made by Yamaha Motor. Yamaha sells portable, midrange, high-power, V MAX SHO, and XTO Offshore outboard families for recreational and commercial boats.
Identification
Identify a Yamaha outboard motor by the brand name on the engine cowling and the model or serial number plate on the transom bracket, swivel bracket, or clamp bracket.
Yamaha outboards are commonly identified by a model code and serial number on the clamp bracket. The model code can indicate horsepower, series, shaft length, steering type, starting type, and generation.
Common Service Areas
- Engine oil and filter service on four-stroke models
- Spark plugs, ignition coils, and charging-system checks
- Fuel filter, fuel pump, carburetor, or fuel-injection service
- Cooling water pump impeller and thermostat service
- Gearcase oil, propeller, seals, and anodes
- Shift and throttle linkage adjustment