Have an 01 wr 426 finally put new piston and timing chain in it . Ran fine for break in, next week going for nice ride and bike died and wouldn't start. I took it back to the shop who did top end and we could find nothing wrong except for the intermitent spark. Bike has a Baja Designs st legal kit and never has failed to start first kick . Shop owner was no help saying its electrical, could replacing timing chain have knocked loose wire in stator anyone have this happen to them? I just need a starting point.