My son upgraded to a 250 raptor, was trying to but a race ready one but it just didn't work out. So.... Looking to widen it out & a little bit of engine upgrade. Does anybody have the diamond j kit? He rides on nothing but motocross tracks but does not race. So i am looking to upgrade suspension & do a pipe/air fliter/jetting thats about it. No internals, want reliability. So if anybody has some parts they want to sell because they are upgrading please let me know. Thanks for any advice because i don't know alot about these yahamas, i am die-hard HONDA but they don't have a nice intermediate unit like this. Thanks Dean!