Yamaha YFZ450/450R (2004-Present)
I recently bought all new internals for my 04 yfz450 carb. New gaskets, rejeted, new diaphragms, springs, the whole 9 yards. When I put it back together and put it on my yfz, as soon as the yfz starts it revs to high rpms and dies. I have no idea what could be happening I have rebuilt carbs in...