Hey guys I have a 2 month old skyhawk engine. I use a mikuni carb, expansion chamber, 36t sprocket, supercharge cdi and a few other minor mods. I recently shaved some of the head to raise compression, and ended up raising it by about 30psi. Since then, my motor has become a bit more difficult to start, however this issue preceded that. What happens is it takes about 3 or 4 tries until the engine kind of slowly chugs then slowly fires up. Once she's running, it runs really well. Just a bit annoyed with this ignition problem. I have a super magneto on the way hopefully it helps. Any ideas?