[yesmar74]

Well the driveshaft was not the problem. I took the driveshaft clear out and it still shakes. What I did discover is that it totally dose not fire on the right side. After running awhile the plug on the left got warmed-up and the right spark plug was still cold. I switched plugs and even tried other plugs with no succsess. It is getting spark but dose not seem to be real hot. Actually neither side seems to be real hot for that matter. Could it be a poor engine ground? The right side is for sure getting gas, as the plug was wet with gas when removed. I took the intake manifold off thinking that maybe a mouse had moved in since I don't know how long the carb had been off before I bought it,but all was clear. While I had the manifold off I turned the motor over and I could see the valve moving as it should. Did I read on here one time that these engines can throw a magnet off? I may be reaching here but I'm all out of ideas. It wouldn't be too hard to pull the engine at this time and check for a throw magnet, because I took the bolts all out of the engine mounting plate to remove the driveshaft and have not replaced them yet. Thanks for your help guys, Gary

P.S. I,m going to blow leaves now and give this some more thought.