have a 41 hand start b with wico C mag that we cant get to start or keep running on the rare chance we do get it to start. if i spin it over real slow by hand it will occasionally hit on 1 but wont carry through to another power stroke. when we are pulling it it will hit and fire along with the throttle pulled all the way back, as soon as i move the throttle the tiniest bit it quits firing. we had it running long enough to drive it to gas barrel then to the shop to air up a tire where i was adjusting carb and got it running better but then i slowed it down and went to speed it up and it was like you shut some switch off, never did get it to run longer than a few seconds after that. it was doing the same thing last summer and i got it so it would start and run good on the first round of the flywheel but i have tried what i did last summer to no success. should i be looking for a carb issue or mag issue?
another thing that puzzles me is that i had to rotate top of the mag all the way back to get the impulse mark to line up with the mark on the cover when it clicks, i cant say for sure but i would assume that the marks should have lined up where it was for the last how many years, is it possible something internal has gotten out of time?