My 1981 250 started backfiring today. It had weak power going up a hill. Someone told me - when they heard the backfire - that I had a worn camshaft.
I looked online and the symptoms match. Plus I had put Ethanol in it the other day because I was at that gas pump. One article said Ethanol or water in the gas may cause that too.
My question is... Could I get away with just replacing the Lifters and Pushrods until I can afford a rebuild?
