Hello, my 1985 atc 200x is not wanting to start even with starting fluid. I have good compression, cam and spark advancer are in time, valves are set correctly, the carburetor is set correctly I think. I do have weak spark but I don't know what Is causing it though I checked all the values on all the electrical stuff all came back in spec execpt for the ignition coil. Does anyone sell oem replacement ignition coils? Some of the ones sold on amazon are HIGH performance and you cant use certain high-performance stuff on these engines because it already has a manual spark advancer and you would doubling your advance with any high-performance ignition parts. The spark is very little like just barely making the jump across the gap bad. I'm pretty sure this is why it is not wanting to run even with starting fluid. do your magic three wheeler world and figure out what's going on.