I was out driving my blaster today cruising along in 6th gear and the engine died and it started slowing down really fast.I immediatly hit the back brakes and the kill switch and stopped. The transmission was completely dry.Got some oil put it in and after a few kicks it started fine. i carefully drove it home in 3rd gear.Then i added more oil and drove it again.I took off pretty hard and just when i was shifting into 4th gear it died. Now i cant get it to start and ican push it around in gear with basically no resistance I just rebuilt the top end last weekend and after it wouldnt start i checked the piston and it seemed fine. Any ideas whats wrong?