Hey guys, i have been on the forums for a bit but havent posted just read and picked up some knowledge from you guys. i have a Blaster with a Vito's 240 top end kit. I bought the quad from FL and relocated to Albuquerque, NM(5500ft elevation) I was riding here whenthe quad shut off on me and would not start. i tried cleaning the spark plug, new spark plug, compression test, switching fuel, cleaning carb. Nothing worked. i opened up the top end to find that the rings were fried into the piston. i have a 320 main jet and a 30 pilot jet. wha could have caused this? What can i do to prevent this again? I also have K&N air filter(no lid), vforce 3 reeds, Vitos fatty pipe and silencer, vitos adjustable stator. Hope to hear from you guys soon. thanks.