fourtrax400ex
07-17-2002, 02:05 PM
Someone use the HRC needle for the xr400 powerup kit in their 400ex carb?? i have got one for a cheap price but they seem to bug a little between 1/4 and 1/2 but only when the motor was cold or warm, after a short time it seem to be ok and have better gas response, i try the 3rd and 4 notch down, maybe im a little too rich or is just the needle that doesn't work good, the hrc needle are longer thant the stock and more sharp. someone else have try it???