Wally /Montana It amazes me how the whole stovebolt tribe battles those liquid fuel carburetors,fuel pumps,dirty tanks,filters and lines. Oh and the heat riser wore out system always stuck and leaking. A few brand new fork lift parts will bypass all of that so you don't wash your cylinders down every morning with gasoline.My 51 6400 starts with just a bump,is then immediately ready to go smooth out the driveway.Also the fuel is 1/2 the price,no sludge,oil stays bright ! If you tear it down don't have to use some sludge cutting coal oil flush is already clean !!