Flywheel only turns when spark plug is out?
I am having this same problem. I put in 18lb springs then all of a sudden, the cylinder was jammed and I broke my pull start. Without the spark plug, its good, with it I can rotate the flywheel for a little bit then I hit crazy suction. So I took the case over the cylinder off, put it back on, put the spark plug back on, now it wont move a budge instead of 1 1/4 turns.:laugh: