Ok i have several questions. My mods are 19cc domes, k&n air filter, holes drilled in air box lid, trinity 2 in 1 carb intake with a keihn 36mm pwk carb, it is a range of 0-35 degrees and my elevation is 1,100 feet. I was running 93 with 40:1 ratio and my jetting is 190 main 52 pilot and i seized one of the pistons. Is jetting/fuel what caused this? I know my crank is good, please help me out. thanks