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Discussion Starter · #1 ·
I wanted to do some jet work. My 250x is mostly set up for high end power and i was just wondering if i only needed to do that one jet or if i have to do them all. Also was wondering what jetting kit to get.
 

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What mods do you have done.I'm pretty good at judging the jetting on these machines.
 

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Discussion Starter · #3 ·
I was told i have a cam from the guy i bought it from. I put a DG RCM complete exhaust system in as well. I have noticed a huge jump in High end power, so me and my dad are guessing the cam was just never really noticable until the pipe was put on.
 

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Are you running stock jets now?If so you need to run a # 40 pilot and a #130 main and remove the airbox lid.
 

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Agree^^^^^^ Im running a 12:1 high compression piston and a stage 1 WebCam I'm jetted at 134 main and 42 slow jet. so with a cam and pipe I would try Billy's recommendation. make sure you back the pilot screw out about 1/2 turn and reset the idle.
 

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Yes more flow of air means you need more fuel but with the jetting I already gave you you'll be fine.Good luck bud.
 

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Jetting is not an upgrade. It is how you add or remove fuel to your mixture. ANYTIME you make changes to either your intake or exhaust you must rejet.
 
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