you need a minimum of 87 octane gas
50 : 1 using 87 octane fuel I have the same motor
well considering the engine type petrol diesel the best outboard motor to get would be a petrol engine as this is easy fuel to come across just don't get any water in the fuel tank as this will cause the engine to cease and that's bad so get a petrol engined outboard motor and petrol hope this helps
Mercury Marine has recommended 87 octane fuel in their outboards. While the engine may well run on a lesser octane fuel, I would personaly err to the side of a higher rated fuel.
For a motorcycle engine, premium unleaded is the best octane of fuel for most bikes. This is a 91 or higher octane depending on your geographical location. The higher octane the fuel, the more cleanly it burns. This will give the motor better performance.
No, Coleman fuel is a naptha and only has an octane rating of about 50. Additionally there are no additives in the fuel. Using this white fuel in a gasoline engine will burn valves.
I have a 1972 85esl72 Johnson outboard motor and I use a 50:1 ratio.
High octane fuel has a higher resistance to pre-ignition and knocking because it can withstand higher compression ratios and temperatures without igniting prematurely. This is because high octane fuel has a higher octane rating, indicating its ability to resist knocking under higher pressure conditions in the engine.
Plus (89 or 91 octane) will nor harm the engine or fuel system on an engine thats call for 87 octane.Plus (89 or 91 octane) will nor harm the engine or fuel system on an engine thats call for 87 octane.
fuel mix for a 1972 ted wiliams 7.5 hp outboard motor
The 850 model, 85 hp Mercury outboard, is a 2 stroke engine requiring a 50:1 fuel to oil ratio.
High Octane fuel is highly refined fuel which is often used by the aircrafts and jet airliners. Therefore, such fuel will definitely help you to lower down the engine vibration.