What ratio should I run my 2-stroke outboard?

What ratio should I run my 2-stroke outboard?

For 2-Stroke outboards that require a 50:1 premix of oil/gas we’ve put together the following chart to simplify the calculations. Use ONLY 2-stroke outboard motor oil with an NMMA (National Marine Manufacturer’s Assoc.) certified rating of TCW3. Never use automobile motor oil in your 2-stroke outboard!

What is the fuel mixture for Evinrude outboard motors?

What is the fuel/oil mix for my motor? The following is generally true: 1958 and prior used 20:1, 1959 thru 1963 used 24:1, 1964 and newer use 50:1. High performance usage (racing) requires a ratio of 25:1. New engine break-in (not DI) requires 25:1.

What happens if you mix too much oil in a 2 stroke outboard?

Using the proper oil-to-gas ratio is important, but if you’re off, it’s better to mix too much oil into your engine than mixing too little oil. Excess oil can produce a smoky exhaust, oil leaking out of the muffler, and sometimes loss of power.

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’s the correct ratio of oil to gas for an outboard motor?

Most outboard motors require a 50:1 ratio. Pour the correct amount of 2-stroke oil into a clean gas can. Add the correct amount of gasoline. Stir or shake the container to mix the oil and gas. Use the mixture within 30 days or add fuel stabilizer to extend the shelf life.

What should mixture ratio be on Johnson Evinrude?

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 50:1 for the 1964 and newer motors. Models that have working VRO Pumps (Variable Ratio Oilers) do not require oil to be mixed with fuel.

What kind of oil mix do I need for my outboard motor?

If you cannot locate either, but know the equipment’s age, refer to the following: most handheld equipment manufactured before 2003 requires a 32:1 ratio; most handheld equipment made after 2002 uses a 40:1 or 50:1 ratio. Most outboard motors require a 50:1 ratio. Pour the correct amount of 2-stroke oil into a clean gas can.