Hi I am new to sport quads, I just got a 2000 400ex. It currently has a stage 2 cam, DG slip on and an aftermarket filter. It is tough to start I have to play with the choke and throttle a bit to get it running when it has been sitting for a little while, when its warm it starts right up. What size jets are ideal for these mods, also will that help the starting problem? Also it tends to idle a little on the higher side how do I adjust this?