Sand_man said:well, it did almost blow up on me yesterday..hahah i was ridin it, all the sudden it reved soo hard the bike was shaking and a nut came off, and the killswitch wouldnt shut off the bike, so i had to pull off the plug wire, it was scary, like iver never herd a bike rev that loud b4 in my life....now it wont start again..so im just going to get a new piston and re-do the top end.