so I bought a 03 wr450 street legal about a month ago and I've had nothing but problems. I just got it out of the shop today and driving back home from work it died while going in 4th gear?? Plenty of gas oil is good mechanic says it runs good...what could this be? I've been so excited getting into this sport and it's been nothing but a bummer. the mechanic is killing the bank account so I'm thinking about selling it unless this is just a easy fix that I'm not aware of. Any ideas would be great!! Thanks!!