What is the fuel mixture ratio for a 1966 20 hp Johnson outboard motor?

The fuel mixture ratio for a 1966 20 hp Johnson outboard motor is typically 50:1, which means 50 parts gasoline to 1 part 2-stroke engine oil. This ratio ensures proper lubrication for the engine's components. Always use a high-quality marine 2-stroke oil for optimal performance and to prevent engine damage.