my 2000 f4 wont get any spark now i was riding it yesterday for about 5-6 hours with a bunch of friends and we stopped at a gas station i shut it off 15 min later we went to go leave it started right up gave her a rev took off in first half way out the parking lot stalled ever sence wouldnt start turns over great took it home and no spark i check the kill switch wiring the ignition wiring all the sensors fuses tested all 4 of the coils with diff and new plugs no spark i doubt all 4 of them went bad at once..? the only thing i can really think of is the rectifier/regulator could that be the problem? please any advice would be GREAT! thanks!