I have a 2000 400ex. has a hot cam and a wiseco 10:1 piston. k&n air filter and a bigger head pipe with a lrd exhaust. when ran for a little bit it starts to bog its self out and wont want to run. it is running a little rich. mixture screw at 2 1/2 turns out. i think the problem is in the carburetor. if it is i need to know what jets to get for it. i don’t know what size is in there right now but it needs to be changed. I’m at about 900-1000 ft elevation. Any advice will help. THANKS