adding a uni or k&n to a stock carb is a jetting nightmare, not really worth the hassle but if you must have one try about a 110 to a 120 main and keep some different sizes with you. every time the weather changes you will need to rejet. the stock carb needs a strong air signal, when you put the uni on it you loose that. good luck and have fun. oh and the systems you describe is a uni on a stock carb not jetted right. it will idle but wont take the gas.
Mark
" A good friend will bail you out of jail but a true friend will be sitting beside you saying.... Dang that was fun"
Mark
Bubba ( son )
2005 YFZ450, 08 motor,Bike cam, Laeger Plus 2 a-arms, Elka shocks, GYTR Exhaust, Holeshots on Baja rims, AC Pro Pegs, G- Force axle
2009 Sponsor: Asv, SixSixOne. Oneal Racing, Houser Racing, GT Thunder, Nacs Racing, Elka