For a 25hp Yamaha outboard, the recommended fuel mixture is typically a 50:1 ratio of gasoline to 2-stroke oil. This means using 2.6 ounces of 2-stroke oil per gallon of gasoline. Always refer to the owner's manual for specific recommendations, as they may vary by model and year. Additionally, using high-quality fuel and oil can help ensure optimal performance and longevity of the engine.
50:1
50:1
50 to 1. Use good Oil
50:1
50:1
100:1
50/1
Most all models of Yamaha outboards can be operated on a 50:1 fuel to oil ratio.
The fuel mixture for a Yamaha 40 hp 2 stroke outboard engine is 50:1, gas, oil mixture. You should use new gas when you get the engine ready for the season.
one liter fuel 10 mill oil
An 1985 model, 25 hp Mercury outboard requires a 50:1 fuel, to 2 cycle oil ratio.
oil ratio is 1% Pierre