I have a 2002 blaster that I bought a while back. It's modded to all hell but when I picked it up it ran like a charm, about 5 minutes of riding I wasn't about to rev very well then I had no spark at all I've replaced stator, ignition coil, wire, and even the flywheel and still no spark I'm lost this point 1500 deep into this this thing and I've only driven it for 5 minutes. They guy knew it was gonna happen because he completely lost contact after I picked it up. Any ideas on what's going on here...