Gas to oil ratio for evinrude outboard motors

How To Replace The Fuel Pump On An Evinrude 9 9hp Outboard Motor You 1954 1964 5 Hp Johnson Seahorse Tune Up Procedure Outboard Boat Motor Repair Evinrude Xd30 2 Stroke Outboard Motor Oil 3 78 Litres. Stick with 501 for the 1964 and newer motors.

Recommended by Mercury Mariner Tohatsu Johnson and Evinrude this is my preferred ratio for all outboards including Yamaha and Suzuki.

Gas to oil ratio for evinrude outboard motors. Please note that some Johnson and Evinrude Owners Manuals mention 1001 mixture ratio after the motor is completely broken in but most experts suggest against doing that. Stick with 501 for the 1964 and newer motors. Models that have working VRO Pumps Variable Ratio Oilers do not require oil to be mixed with fuel.

The pump is doing the mixing. Then what is the fuel to oil ratio for Evinrude. Secondly what is oil mixture for 2 stroke outboard.

2-STROKE OUTBOARDS CARBURETED Normally your Tohatsu outboard uses a 501 oilfuel mixture 500 mL of oil for every 25 liter of gas. During the break-in period you should use a 251 oilfuel mixture 1000 mL of oil for every 25 liter of gas. Evinrude Outboard Motor Gas and Oil Ratios.

Knowing your Evinrude outboard motor gas and oil ratios is always essential if you want to have a good time with your Evinrude outboard motor. Many people assume that all motors work with the same ratio but this is never the case. All Evinrude motors require specific fuel to oil ratios to function.

Evinrude outboard motors made since 1964 require a 50 to 1 fuel to oil mixture using 6 gallons of gas per 1 pint of oil. Motors made prior to 1964 take a 24 to 1 mixture. The most common mixture for motors made prior to 1955 was 16 to 1.

Outboard boat motors with two cycles manufactured by Johnson and Evinrude after 1964 require a 2 percent fuel to oil mixture. Use 1 cup of outboard motor oil for every 3 gallons of gasoline. 4 hp Evinrude Lightwin motor gas to oil ratio.

Pretty sure the real real old ones are 25 to 1 - I think in the 50s it went to 40 to 1 and probably modern ones are 50 to 1 so - if it is fairly modern you are probably OK running at 40 to 1 until you find out for sure. I have a 68 3hp Evinrude that is mixed 40 to 1. Many of the other two-stroke motors we use around the cottage require a 401 ratio.

For every 40 litres of gas you need 1 litre of oil so the motor requires more oil per litre. This is often the case with chainsaws and some trimmers. For these smaller engines we pre-mix the gas and oil in a container and then use it as needed.

HiCustomer The oil mix ratio on this outboard is a 501 mix or 2 of the total fuel you are best to know how much fuel you are putting in then add the relevant fuel this will ensure that the oil mixes with the fuel adequately and not lay on the bottom of the fuel tank. The Fallback fuel mix. If all else fails and youre absolutely stuck we recommend a mix of 501 for outboards older than 1980 and 1001 for outboards manufactured since 1980.

That is 50 parts fuel to 1 part oil and 100 parts fuel to 1 part oil respectively. By no means perfect but a good general rule. Mar 23 2002.

Fueloil mix on a 1957 Johnson 55 Hp. IA rookieOn this old engine 241 is where you want to be and JohnsonEvinrude Mercury Yamaha oil will do great. If you can buy AMSOIL cheaper then that thats your call.

How To Replace The Fuel Pump On An Evinrude 9 9hp Outboard Motor You 1954 1964 5 Hp Johnson Seahorse Tune Up Procedure Outboard Boat Motor Repair Evinrude Xd30 2 Stroke Outboard Motor Oil 3 78 Litres. The correct mixture is 501or 1 pint to 6 gallonsif possible use the OMC JohnsonEvinrude oil Do not add more oil than that you will loose power. Also I recommend adding SeaFoam to each tank.

An Evinrude 25hp outboard 1985 year model requires a 501 fuel to 2 cycle oil ratio. This is roughly one pint of 2 cycle oil to six gallons of fuel. What is the proper oil to gas ratio ratio.

2 Cycle Oil Mix Ratio Outboard Motor Continuouswave Whaler Reference Mercury Automatic Oil Gasoline Mixing System 397839 Fuel Pump Fit For Johnson Evinrude Outboard Motor 6. Johnson and Evinrude carbureted 2-stroke outboards since 1964 require a 501 fuel to oil mixture 2 on engines without an automatic oiling system 6 gallons of gas to 1 pint of outboard oil. I have a 1986-7 wellcraft v-20 step i believe.

We were mixing the gas and oil 501 but now we are mixing 161. Is that the correct ratio. Read more Master Tech.

I had a 1968 Lightwin that the manufacturer specified 501. I found that it ran a bit on the hot side with that fuel mix so I went to 241 and was much happier. I think the motor was too.

1536 ozs of oil for 6 gallons of gas. 6 gallons x 8 pints 50 501 ratio. 096 pints of oil for 6 gallons of gas.

For 2-Stroke outboards that require a 501 premix of oilgas weve put together the following chart to simplify the calculations. They reverted to the traditional 501 gasoil ratio recommendation in the early 1990s. This is a good example of why it is important to research information on your outboard motor beyond the simplistic recommendations of a meager owners manual.

Posted 08-14-2007 0149 PM ET US. 501 - Mix 100ml of oil per 5ltrs of fuel. Recommended by Mercury Mariner Tohatsu Johnson and Evinrude this is my preferred ratio for all outboards including Yamaha and Suzuki.

You can confidently use this ratio for any horse power and just about all year models. In their day they ran 241 oil to gas. One quart 30 weight automotive oil to 6 gallons of gas.

Of lot of blue smoke and pollution. Ive had two outboard mechanics tell me that with the development of dedicated 2 stroke oil with TCW3 as a standard I could safely run at 401. For 2-Stroke outboards that require a 501 premix of oilgas weve put together the following chart to simplify the calculations.

Use ONLY 2-stroke outboard motor oil with an NMMA National Marine Manufacturers Assoc certified rating of TCW3. The standard ratio for most small engines is 321 or 32 parts fuel to 1 part two cycle oil. However this ratio wont work for all small engines and in fact using the incorrect ratio can cause the spark plugs to foul become saturated with gasoline.

Replacing the spark plugs is no big deal but it can be a pain if it needs to be done all.