I have a 1996 Tomos targa lx, it has an A35 engine with CDI. A while ago i rode around for a while and when i tried to start it up again it wouldnt start. After that there was a sound as if air was hissing out of the cylinder every time i tried to start it. So i figured i had blown a head gasket or pistion ring and didnt have enough compression, so instead of buying new parts i just decided to spend a little more money and i bought an airsal kit. I installed the airsal kit correctly and the hissing is gone..but my ped still wont start. I have compression, i have gas getting into the carb and then into the cylinder, and i have spark. So what could my problem be? I think its either the timing for the spark, if this is the case how do i check to make sure the timing is right? Or i think maybe i ruined a part inside my engine?, but i can still pedal forward and backwards and the piston does move up and down in the cylinder the proper way. Anyone know what it could be? Pls help...And just to avoid these suggestions i know that the problem is NOT: reed valve or piston installed incorrectly, clogged carb, faulty spark plug.