I dont really know about the carbs...but I know how to get the most of the 200x...I got a BAD --- one!
I had it ported and polished, the head milled, an ultralite wiseco piston, a .030 over bore, web long duration cam, drilled holes in the airbox lid, 13(soon to have 14) tooth front sprocket, high performance clutch plates, and pull the baffle out of the pipe...you will then have a 3 inch exhaust...it gains alot of low end power, rid yourself of your engine skid if you dont ride on rocks, if just normal use you dont need it, and it also has a custom bilstein rear shock...it is 4 sale for 1200$...it is ugly though...no front fender,rear is cracked, and the seat is torn...oh it also has a durablue axel(old one) and durablue wheelspacers...
It will go 75 in the bottom of 4th gear...never got it out of that gear...need to long of a straight stretch...none around here....most of the power is in upper 2nd and all thru 3rd....
This thing is MEAN.
Daniel
" If you can't go through, around or under it, then go over it!!!"