best carb for purpose..

Little-J

New Member
We all know that matching carb size to the state of tune of an engine is critical to ultimate performance and actually getting the perfect mixture everywhere, but im stuck..

I have a blaster, 66.5 mm bore (yamahas last oversize), with a very ported cylinder, a paul turner header, and a fat boy silencer, stock stroke, vforce reeds, and a head that was skimmed a barely noticeable amount by the previous owner..

Im runnin the stock carb with a 420 main jet, stock slow jet, open air box, and a needle i got from an fmf kit. needle is in 4th position (almost all the way rich).

Im looking for better breathing on the inhaling side, and i was looking at 3 carbs:
-Yamaha WR 200 (32mm)
-KDX 200 (32 or 34 mm)
-YZ 85 (28mm)

Which one? or what other should i look at?