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. Close the gas container tightly and then shake the container vigorously to ensure that the oil and gasoline mix thoroughly. Once you are confident that the solution is properly mix, add it to your boat’s fuel tank.
How do you mix gas and oil for a Mercury outboard?
How do you mix gas on a Mercury outboard motor? Any motor built after around 1965 will run just fine on 50:1 (20 ml oil on 1 Liter or 2.5 ounces of oil for each gallon of gas) mix. For your 2-stroke outboard, be sure and use only 2-cycle outboard oil, with an NMMA (National Marine Manufacturers Association) certified rating of TCW3.
Do mercury two-stroke outboard motors require hand mixing?
Older two-stroke Mercury outboard motors require hand mixing of oil and gas. Newer models like the OptiMax motors have an oil injection system that keeps the ratio of gas to oil correct. If you are using an older model two-stroke outboard motor, here is some advice for mixing fuel:
How much fuel do you put in a Mercury 2 stroke motor?
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.
What is the best fuel mix for outboard motor?
The 'Fallback' fuel mix If all else fails and you're absolutely stuck we recommend a mix of 50:1 for outboards older than 1980 and 100:1 for outboards manufactured since 1980. That is 50 parts fuel to 1 part oil and 100 parts fuel to 1 part oil respectively.
What is the oil to gas ratio for a Mercury outboard motor?
50:150:1 - 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.25-Jul-2017
What is the oil ratio for a 2 stroke Mercury outboard?
50:1For 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!
How do you mix 2 stroke fuel for an outboard motor?
Use a 32:1 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 40:1.
How do you mix oil and gas for an outboard motor?
0:251:39How to mix outboard fuel - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd oil fill up your tank with as much gas as you need look at the meter. It says 5.5 gallons you goMoreAnd oil fill up your tank with as much gas as you need look at the meter. It says 5.5 gallons you go to 50 to 1 go down to 5.5. And that's where you fill it up no big deal get your oil fill. It up.
How much oil do you put in 5 gallons of gas?
For 5 gallons of gas, with a 50:1 ratio, the amount of oil required is 12.8 US ounces (100 ml). Experts agree that it is better to err toward the side of too much oil, rather than not enough. Typical break in period ratios are about twice the normal; 50:1 is generally 25:1 during break in.
Should I use premium gas in my 2-stroke outboard?
Its owners manual states that the recommended fuel is leaded regular, with the second choice being leaded premium. ... That said, your choice of fuel remains critical. Burning 87-octane gasoline in a two-stroke outboard causes carbon buildup that shortens engine life.19-Nov-1997
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 happens if you put too much oil in a 2-stroke outboard?
Well, if there is too much oil in your two-stroke outboard motor, what happens is that it will end up gumming up the plugs because of the higher consistency of oil. When that happens, the boat's engine will produce a lot more smoke than it usually does as it burns the excess oil off.
What is a 50 to 1 mixture?
You want to mix 2.6 ounces of oil to one gallon of gasoline for a 50:1 mixture. If you're mixing up two gallons of gasoline you will have to mix 5.2 ounces of oil to two gallons of gasoline for a 50:1 mixture. ... Remember, 2.6 ounces for one gallon and 5.2 ounces for two gallons of fresh gasoline for a 50:1 mixture.17-Mar-2011
How do you add oil to a 2 stroke Mercury outboard?
1:176:48How 2-Stroke OIL SYSTEMS Work! - YouTubeYouTubeStart of suggested clipEnd of suggested clipSystem we can just unscrew the cap on the main oil tank. And watch the oil level rise. Then quicklyMoreSystem we can just unscrew the cap on the main oil tank. And watch the oil level rise. Then quickly tighten the cap back down before oil flows out and all over the place.
How do you mix oil and gas?
0:000:59How to Mix Oil and Gas: The 2-Cycle Engine Fuel Recipe - YouTubeYouTubeStart of suggested clipEnd of suggested clipOut the oil and pour it in your gas. Can along with 1 gallon of fresh regular unleaded fuel thenMoreOut the oil and pour it in your gas. Can along with 1 gallon of fresh regular unleaded fuel then swirl it up as you can see we're mixing in the gas can never in the fuel tank.
How do you mix a 2 stroke oil boat engine?
3:136:12How to mix 2 stroke gas properly! Get the most out of your engine!!!YouTubeStart of suggested clipEnd of suggested clipI can properly mix the exact amount of oil for this engine which is fifty to one.MoreI can properly mix the exact amount of oil for this engine which is fifty to one.
Where is the fuel mix stamped on Yamaha outboard?
This might be really obvious on the cowling like in the image below of a late 1980s Yamaha outboard or it can be a bit trickier to track down being on the underside of the cowling, embossed on the fuel filler cap (outside or inside) or stamped on the side of the fuel tank.
Where to store outboard engine fuel?
Always store, handle and mix outboard engine fuel in a well ventilated space, ideally outdoors and away from any source of ignition of chance of contamination, i.e. not on the ground of some dusty car park!
What is a 2 stroke outboard engine?
Any outboard described as a 'two stroke' engine is an internal combustion engine than burins injected fuel through a reduced power cyle of just ignition and exaust (more info about the difference between two stroke and four stroke engines here. ) Due to this design it is necessary to provide the engine with lubrication (the oil) actually within the injected fuel (the petrol or gas). The relative proportions of these two components is called the ' fuel mix ratio '.
What to do if you can't find a manual on an outboard?
If there's nothing on the outboard itself and you can't find a manual the next step would be to perform a search of manufacturers websites for reference material and archived docs. Many of the major manufacturers like Yamaha, Evinrude/Johson and Mariner publish 2 stroke fuel oil mix charts in litres and fluid ounces. Many also have online search tools where you can enter your outboards make and model or serial number to get the right mix chart.
What to do if fuel spilts?
Clean-up an spilt fuel or oil and make sure to com mit to memory or note down which fuel tank has the mixed fuel ready to go.
What materials are good absorbants for oil spills?
Tip: Sawdust, Sand and even Cat Litter all make effective absorbant materials should you have a fuel or oil spill.
Do you need to know the mix of an outboard?
Knowing the right mix is simple enough if you're buying a new outboard or were lucky enough to get the original owners manuals when purchasing an secondhand outboard but often these get mislaid as engines passthrough various owners over the course of their lifetime of years or even decades!
