a friend of mine recently gave me an early 80s yellow, 5hp flatty. i wanted to get it running without the hassle of messing with the old flowjet carb, so i used the carb and tank off of my recently screwed '95 flatty. as i proceded to drill a new mounting hole it lined up perfectly. this interesting engine runs smoothly and starts on the first pull, but smokes like a :censure: ! it blows out white smoke when you throttle it up, but the smoke disapates when you have the throttle open. is this due to old parts, or the carburetor transplant, or what? any advice would be appreciated!
