The PA50II 78' that I have is giving me real problems. I had it running really good but still wasn't very fast so I decided to clean the carb agian. When I did that, somehow the decompression valve got bent, I must have set the frame down on top of it or something. So I got a new valve from Honda and now that I've put the bike back together, the stupid thing won't even start. It is really hard to describe exactly what the problem is but I shall try. When I try to kick start it nothing happens, but when I roll start it, it seems like it is running for a second but when you try to give it gas it just dies. I have checked the plug and am getting a big fat spark, and its got lots of gas, so I don't know what the problem. Also, it makes no difference wether the ignition switch is on or off, it does the same thing either way. Fred or David, you guys have helped me a lot and I would love some advice.