Fuel Type

[russ]

I run mid grade fuel with lead additive . I've tried without lead substitute and bike seems to run a little rougher , when I add it to fuel seems to smooth out quite a bit . I also use PB Blaster fuel injector cleaner from time to time to help keep clean.

[CB77GUY]

I don't run my 305 on the street as it is a Vintage recer, but I run a 50-50 mix of VP6 Leaded race gas and Premium Unleaded. It runs great, has caused me no valve problems and gives great plug readings.

[Berkeley Boone]

I am fortunate to be able to buy non-ethanol fuel with no problem. Frankly, I don't know the octane rating, however.

[tommytailspin]

back in the day the lead in fuel was an excellent lubricant for the valve train of gas engines. marvel mystery oil at 4oz per 10 gal of fuel is what i use in my airplane, harley's, and vintage bikes. it's a good lube for the valve trains and helps to eliminate carbon build up.