Never use automobile motor oil in your 2-stroke outboard. The result of using this ratio less oil is reduced spark plug fouling and less smoke.
Using the proper oil-to-gas ratio is important but if youre off its better to mix too much oil into your engine than mixing too little oil.
Oil to gas ratio for mercury 2 stroke outboard motor. 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. Never use automobile motor oil in your 2-stroke outboard.
OIL RATIOS - 2-STROKE MODELS. 501 50 parts fuel to 1 part oil Oil requirement. - Certified TC-W3 2-Stroke Outboard Oil - Mercury or Quicksilver Premium 2-Cycle TC-W3 Outboard Oil - Mercury or Quicksilver Premium Plus 2-Cycle TC-W3 Outboard Oil.
2-stroke oil is normally added to the fuel tank when filling with fuel. For a Mercury two-stroke model 2- to 20-horsepower outboard motor manufactured before 1980 use a blend of unleaded gasoline with a posted octane minimum of 91 and Mercury or Quicksilver Premium Plus 2-Cycle TC-W3 Outboard Oil at a ration of 50 parts fuel to one part oil. What is the oil to gas ratio for a 2 stroke outboard motor.
Use a 321 gasoline to oil ratio. One gallon of gasoline combined with 4 oz of two-cycle engine oil. If you are in the state of California use a 2-cycle oil mix ratio of 401.
How much oil do I need to mix 50 1. Oil Gas Mixture Ratios Technical Information Tohatsu International. 5 gallons quicksilver 2 stroke synthetic blend decks quicksilver premium plus tc w3 2 stroke synthetic blend marine oil outboards personal watercrafts 1 gallon 2 stroke mix chart amsoil png precision lubricants 2 cycle marine oil mercury johnson outboard fuel mixture chart.
The non oil injected 2 stroke model 70 hp Mercury outboard requires a 501 ratio one pint of 2 cycle oil to six gallons of fuel. For a Mercury two-stroke model 2- to 20-horsepower outboard motor manufactured before 1980 use a blend of unleaded gasoline with a posted octane minimum of 91 and Mercury or Quicksilver Premium Plus 2-Cycle TC-W3 Outboard Oil at a ration of 50 parts fuel to one part oil. If the motor is over 30 horsepower then use premium unleaded gasoline with a posted octane minimum of 95 instead.
If you are using an older model two-stroke outboard motor here is some advice for mixing fuel. As a general rule of thumb add three ounces of Mercury 2 stroke premium outboard motor oil for each gallon of gas. Pour the gas and oil into a singular container.
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.
Likewise what is the oil to gas ratio for a 2 stroke outboard motor. Then what is the mix ratio for outboard motors. How do you calculate the gas to oil mixture for a two-stroke boat motor in the United States.
For a 501 ratio each gallon of gas requires 26 oz of two-stroke engine oil. Simply so what is the best oil to gas ratio for 2 stroke outboards. Beside above can you use too much 2 stroke oil.
Using the proper oil-to-gas ratio is important but if youre off its better to mix too much oil into your engine than mixing too little oil. The 1976 year model ser4420321 45hp Mercury outboard requires a 501 fuel to 2 cycle oil ratio. Mixing one pint of oil to six gallons of fuel will be a good mix.
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. Use ONLY 2-stroke outboard motor oil with an NMMA National Marine Manufacturers Assoc certified rating of TCW3. We have created a quick oil-to-gas calculator for any other amount of gasoline you might need to calculate for a 401 or 501 ratio for your two-stroke motors.
The result indicates the amount of oil you need for the chosen amount of gas and the required ratio. Mercury Outboard Oil Mixture. Consequently how much oil goes in a 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. The result of using this ratio less oil is reduced spark plug fouling and less smoke.
For older Suzuki outboards pre-1997 Id recommend running 501 as the information Ive provided about is for current model two strokes. For commercial applications Suzuki recommends 501. 501 - Mix 100ml of oil per 5ltrs of fuel.
Recommended by Mercury Mariner Tohatsu Johnson and Evinrude this. 90hp 2 stroke oilfuel ratio 501 One pint TCW-3 outboard oil to six gallons of 87 octane. OIL RATIOS - 2-STROKE MODELS.
501 50 parts fuel to 1 part oil Oil requirement. - Certified TC-W3 2-Stroke Outboard Oil - Quicksilver Premium 2-Cycle TC-W3 Outboard Oil - Quicksilver Premium Plus 2-Cycle TC-W3 Outboard Oil. 2-stroke oil is normally added to the fuel tank when filling with fuel.
YAMAHA Yamalube 2M Marine 2-Stroke Oil. Its always important to ensure the durability and well-functioning of your outboard engine in which case you need good oil for it. Yamaha brings you just the proper product that will ensure you will have a long-lasting outboard engine.
What is the ratio of gas and oil in a 40hp Mercury outboard. Im assuming you have a two stroke Merc 40 and the ratio would be 50-1 or about 26 ounces of oil per gallon of fuel. Remember the 50-1 and when you add the fuel there will be a chart on the back of the oil can.
Mercury 2-Stroke Outboard Boat Motor Service Manuals for only 495. Mercury 2-Stroke Outboard Boat Motor service manuals are available for immediate download. This service is available for only 495 per download.
If you have a dirty old paper copy of this manual or a PDF copy of this manual on your computer and it crashed we can help. Other models require the user to mix the oil and fuel together in the outboards main fuel tank each time the fuel tank is topped up this is known as a premix model In addition to this you will need to know if your outboards oilfuel mixture is either 501 or 1001 so that the correct amount of oil is poured into the fuel.