Thanks for all the posts. Unfotunately, nothing is better. I have put on a new carburetor from NAPA - well, remanufactured anyway. It runs exactly the way it did before I put it on....terrible !
Plugs are getting black soot - covered in black soot for just a few minutes of running. My butterfly valve is free moving and just flopping around. I fear that somehow, it's almost as if exhaust is getting into the intake manifold and is "fouling" the plugs, and making the engine run poorly. Can I block of the exhaust atop the butterfly. I live in a fairly warm climate and have a manual choke.. Do i really need this butterfly thing, anyway? Could this alleged "mixing of exhaust and intake fuel be causing the missing problem?
