New pilot jet: Should I change needle and/or air screw?
I own a 1994 kdx with fmf pipe, lid off, torque ring, carb spacer and fmf silencer. I was running a 42 pilot at with stock needle at the second clip from the bottom (toward long part of needle - rich), and air screw out about 3/4. These were the settings for hot summer (90s degree) weather in North Carolina. Now that it has been getting cooler I have been having to turn th air screw to about 1/4 out. I was told by the Kawasaki deal to try a 45 pilot ( I had a 48, but this made the 1/8 - 1/4 throttle to rich, judging by the spark plug). The mid to top end is still right on (would someone please explain why?). Once I get the 45 pilot jet should I also change the needle clip position and/or the air screw? If so what settings should I try first?