Oliver 1650 new gas problem

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Oliver 1650 new gas problem

Mike M I have a 1969 Oliver 1650 with a gas engine. I have spoken with several people who are having the same problem that I am experiencing. In the past two years the tractor has been running rough. It fouls the plugs extremely quick. Everyone I have spoken to says that these tractors were designed for leaded gas and that todays gas does not run well in these tractors. I have been given a few options to try. Hotter plugs. It currently has Champion RN14YC plugs in it. The other suggestion was to mix aviation fuel (also known as turbo blue) with unleaded gas in a 50/50 mixture.

Anyone have experience with this problem? Your suggestions would be greatly appreciated.

Does anyone know what the model# of a hotter plug would be that would have the same thread size and lenght as a Champion RN14YC



john i use n 11 y champion check the timing i just use reg gas no problems
Cody Av. Gas and Turbo Blue is totally diif. av. gas ia 100 oct. and turbo blue is 110 oct. Av gas is about 1/2 price. too.

rick when was the last time the carburator was rebuilt?
It should run fine on todays gas but you should add good lead additive, such as cen-pe-co. I recommend the carb rebuild and a good tune up, then it should run fine.

change to the high energy igition system to fire the low flash point gasoline we have now days

Ron I was having the same problem with plug fouling. I tried hotter plugs in both one and two higher heat ranges. Still fouled. Then I realized that small amounts of foreign material was finding its way into the carb and causing it to run rich all the time. After a carb cleaning and installation of a small can-type gas filter between the sediment bowl and the carb, no problems. I haven't had to mess with the plugs for two years. Good luck.

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