ok guys i need some help here. i have this xt2 for about 1 month now and after having to replace the one way berring and now it looks like ill have to replace the piston head. why because i believe its broken. i was running it just as i always do. i had it tune rich just so i can get it running for abet. all the saden car dies on me. i go to pull the pullstart and its hard as hell. i open the buggy up. and the piston is all black and locks up when it reaches the top as if the sleave got smaller? anyways everything inside seems to be working find. what happen did i ruined this engine or can i just get a new head and sleave?
please do help thanks.