[Fred K-OR]

Well guys thanks again for the help. I have tried most of the ideas presented in your comments but still have the same old jerky problem.

I haven't checked for a leak in the intake manifold nor have I put on a different coil. When the weather around here gets back to raining or cooler, then I will get back to doing more.

I did put some Mystery oil in the cylinders but that still did not help.

I did notice that when I went along in second gear at a lower consistent speed (10 MPH), when it would jerk, it would backfire in the carb. Could this be a bad valve or a sticking one or maybe one out of adjustment???? Reason I ask about the adjustment is that I tried to adjust the valves awhile back and I may have messed them up.

Anyway thanks again for your comments and if anyone has any other ideas, please tell me how messed up I am.

Tom BTW I did check the gas cap and it was not screwed down tight and I also loosened it more. But no change in the problem.