As of 2014, any Johnson outboard motor built since 1964 requires a 50/1 fuel ratio. Motors built prior to that date require a 32/1 ratio, with the exception of a few fishing motors built prior to 1955 that use a 16/1 ratio.
Johnson outboard motors are two-cycle engines. These engines use a fuel and oil mix to provide lubrication. The crankcase serves as a pressurization chamber that forces the fuel mix past the piston rings into the ignition chamber. This provides the fuel that the spark plug ignites, and leaves a thin film of lubricating oil on the cylinder walls. Operating with a fuel-to-oil ratio that is too high causes premature wear on the parts due to a lack of lubrication.Learn More
To bleed a Mercruiser trim pump, fill the tank, and remove the lines from the trim cylinder and gimbal housing to drain the hoses. You need hydraulic fluid, a flat-head screwdriver, an adjustable wrench, a container and a pair of safety glasses to protect your eyes from splashing fluid.Full Answer >
The Yamaha WR450F motorcycle's engine is capable of producing 58 horsepower under optimal conditions. The engine, when properly maintained and in good working order, can reach speeds of over 9,000 revolutions per minute.Full Answer >
Boats and other waterborne vessels operate on the principle of buoyancy, or the property of fluid that causes it to exert force at all points on an object. When objects are placed in water, they sink until they displace the equivalent of their weight in water. Boats have a hollow interior and are large enough to reach this goal without being submerged.Full Answer >
A 4x2 wheel drive refers to the setup of a driveline in a vehicle, typically in light trucks. It indicates that the vehicle has four tires, with two of them at most providing power.Full Answer >