What is the fuel mixture for a Johnson outboard motor? 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. What should mixture ratio be on Johnson Evinrude? New engine break-in (not direct injection) requires 25:1 Please note that some Johnson and Evinrude Owners Manuals mention 100:1 mixture ratio after the motor is completely broken in, but most experts suggest against doing that. Stick with...

How many miles per gallon does a 4-cylinder get? Cars. Buyers of a 2011 Chevrolet Malibu with a 4-cylinder engine can expect 22 miles per gallon (MPG) in the city and 33 on the highway. The V6 Malibu gets 17 MPG in city traffic and 26 MPG on the highway. It's a similar story for the 2011 Honda Accord, which offers 23 MPG city and 34 highway with a 4-cylinder engine. How much gas does a 4-cylinder idle use? Idling uses up to ½ gallon of fuel per hour (although it varies depending on the type and size of the...

Why do race cars backfire? Racing engines open the intake and exhaust valves earlier and close later to better fill the cylinders at high rpm, thus making more power. However, when the race engine is turning slowly, during starting or idle, a backfire may occur due to that increased valve duration. It is a trade off for racing needs. What causes a diesel engine to backfire with flames on exhaust? The exhaust gas will contain high amount of unburnt fuel. These unburnt fuel coming out of the exhaust will start to burn when it comes into contact with the hot...

How far can SPI run? approximately 10 m While the SPI communication method is generally suitable for distances up to approximately 10 m, to bridge longer distances, a repeater is often needed because of attenuation due to the increased line resistance of long cables. What does SPI mean? In a computer, a serial peripheral interface (SPI) is an interface that enables the serial (one bit at a time) exchange of data between two devices, one called a master and the other called a slave . An SPI operates in full duplex mode. This means that data can be transferred in...

Can I drive without coolant fluid? Driving without coolant, or with low coolant levels, can cause internal temperatures to rise to dangerously high levels which can damage a number of engine parts including the water pump, head gasket, cylinder and piston timing, and connector rods. When does the water level in a reservoir exceed the watershed height? Sometimes in such reservoirs, the new top water level exceeds the watershed height on one or more of the feeder streams such as at Llyn Clywedog in Mid Wales. In such cases additional side dams are required to contain the reservoir. When does...