Pilot jets are for your idle mixture.Rule of thumb is if you need to go more than 3 turns out on your idle screw you should go up on your pilot.JMG motorsports in Newhall has a good selection of jets.If you have the money you might want to consider the GYT-R jet kit or better yet ask if you can buy the same neddles that come in that kit and buy the jets separate.The kit comes with the 25 pilot jets and mains from 145 to 165 and neddles. Are you doing the work yourself?

 

i would like to do the work myself or with someone that knows how,i still have all the parts for the dyno jet kit so i just need the main jets,I personally want to go lower in main jets what do you think,Do you know somewhere i can get help for a good price...Thanks..