I bought a 2005 crf150 from a tifton cycle . The bike runs fine if you want to ride it on the road if you go over whoops or bumps the bike will lose power and cut off i have dump the bike a few times after going over a whoops and going into a turn and it will cut off i call and the shop i bought it from and they had the deer in the head light look. They said that they have never herd of a bike cutting off after you go over bumps . Please help .