ok you have done the compression test, thats good, nw check your spark on all cylinders with a gap tester set at 7/16. check for spark when it will not crank. if it is bad just unplug the stupid thing. it is a little switch at your shifter linkage. if you are losing spark only on one side check your shift switch that kicks out one side briefly when you shift into gear. after that check power pack then stator and trigger, free test guide link in my sig below as well as a link to get a DVA adapter. I have seen plenty of stators that put out on minuet then nothing the next.