I bought this last year with a trailer for $400, the owner said it had been fouling plugs, I replaced that battery and got it running. When it ran it ran like it was soppose to, powerful and didn't miss. Then one plug would foul and I'd start riding back home and the other would foul, eventually it stopped sending spark to the plugs. I had it compression tested and it passed. I bought a new rear elecrtical box for it. I installed it today, the motor turned over just fine but still no spark. I checked all my fuses, and opened up the MPEM to look for any obvious problems. I'm not sure if the fouling of the the plugs and the absence of spark coralate, but for right now I would love your help getting spark back to these plugs.