What kind of gas does a 4-stroke outboard take?
“We recommend 87 octane for both our two- and four-stroke motors. We stress the importance of a good, name-brand gasoline.” Additionally, Grigsby says Yamaha recommends the regular use of fuel additives, such as conditioner, stabilizer, combustion-chamber cleaner and gas-line anti-freeze.
Do you mix oil and gas for a Mercury outboard motor?
Mixing Fuel for a Mercury Outboard Motor. 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.
How much outboard motor oil for a gallon of gas?
As a general rule of thumb, add three ounces of Mercury 2 stroke premium outboard motor oil for each gallon of gas.
What causes gas in oil on 4 stroke outboard?
I will keep a close eye on it for sure. It is common in in four stroke boat motors…It is caused by carbon buildup from lots idleing and slow running. Best fix is to mix one ounce of Ring Free to every ten gallons of gas. You can buy the Ring Free at most boat dealers and my local walmart carries it now…..it is made by Yamaha.
Can you mix oil with gasoline in a four stroke engine?
Do not mix oil with the gasoline for a four-stroke engine, as this can damage the engine’s components. Do not modify the engine to use alternate fuels, as this can also damage the engine’s components.
What kind of fuel does a Mercury outboard use?
Pre-Mix Models Fuel/oil ratio: 50:1 (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
What happens when you put 4 stroke gas in oil?
Re: 4 stroke – Gas in Oil. You’ve got a faulty fuel pump diaphragm. The fuel pump is powered by a push rod from the camshaft, and a rip in the diaphragm will allow fuel into the rocker cover on the cylinder head, where it mixes with the engine oil and returns to the oil sump.
What kind of horsepower does a Mercury fourstroke have?
Whether you pilot a small fishing boat or a party on a big pontoon, there’s a Mercury FourStroke that fits the bill. The 40, 50 and 60hp models are available with either standard or BigFoot gearcases.
How much oil do you need for a boat motor?
35 X 2.5 = 87.5 so you need 875 ml of two-stroke engine oil. 3500 / 4 = 875 so you need 875 ml of two-stroke engine oil. How do you calculate the gas to oil mixture for a two-stroke boat motor in the United States? For a 50:1 ratio each gallon of gas requires 2.6 oz of two-stroke engine oil.