so i took out my blaster today and it was runnin really good when i was at the riding spot, but to get there we take the train tracks. its about a 5 to 10 minute ride on the quads. on the way there it was really bogging and i couldnt get it out of 4th gear. when i got to the spot it was running good. i rode for a couple hours and on the way home it died half way there. i started it up again and rode it for a little while longer and then it died again. i tried kickin it over and it felt like the piston was stuck. when i got it home it wasnt stuck anymore and it started but wouldnt keep running. anyone know what it could be? :-/