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JD Jetting Jet Kit
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JD Jetting Jet Kit

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  • "Customer service is priority #1 at Rocky Mountain ATV/MC. We value our customers and strive to be the best shopping experience- when you buy from us, you are buying lifetime service."

    -Dan Thomas, CEO and Founder

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    We take pride in offering no hassle returns. In the event of a return, please call, email or chat with us to receive a solution to the problem. For apparel that doesn't fit quite right, Click here to see our Fit Guaranteed Program.

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  • James Dean designed the JDJetting kits so that you don't have to be an expert to get professional high performance results!!
  • The James Dean custom jetting kit is designed to improve throttle response throughout the range by using specially made multi-taper needles.
  • These are based on the most popular settings used by new generation MX and off-road riders around the globe and the results are impressive.
    Exceeds the performance of the popular EMN, DTM, and other standard factory needle options.
  • Low and High altitude custom designed triple taper needles.
  • Main Jets included, Spare Needle Clip, and Dyno Tested.
  • Developed and tested from sea level to 12000ft elevation
  • You can’t buy this from any OEM factory or aftermarket. It’s JD’s prescription for the headpipe blues.

JD Jetting Jet Kit Reviews

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JD Jet kit

Comments On Jul 15, 2014:Like other reviews, this jet kit is top notch. I live in Utah at my elevation is ~4500 feet above sea level. This kit helped out great with jetting issues. However, as others have mentioned this kit is extremely overpriced.
With that said, I would buy it again as it is the best option for quickly setting up your jets,

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Just What I Needed

Comments On Jul 12, 2014:This kit is better than the GYTR kit. The JD kit includes all of what you need to make it work for you and your riding style !!

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Fixes it. . .

Comments On Jun 16, 2014:Thank God for this being in stock.
I bought a new '14 bike that ran aweful off of the floor with the factory jetting.
Rocky Mountain & JD saved the day. I had it running well within 25 minutes with this kit & the included directions.

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felt like it gave my bike fuel injection...

Comments On Jun 12, 2014:This kit is needed to make your wr250f run the way the are supposed to run...felt like the kit made my bike fuel injected!!!! Also i used the AIS removal kit and installed the quickshot3...the instructions were super easy...

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Jetting Kit

Comments On Jun 10, 2014:Great kit, best money I have spent on my bike.

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great product

Comments On Jun 08, 2014:purchased to increase the mpg and go ride in high elevation. Works great if you set it to recommended settings for the temp and feet above sea level. i am very pleased with my purchase and would buy it again. The kit made my bike run perfect way better response and a very crisp feel. It is expensive but well worth the money, it does the guess work for you.

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Great Product!

Comments On May 25, 2014:Don't mess with the jetting chart in your manual only to get mediocre results. Buy one of these kits and take all the fiddling out of the jetting/tuning process.

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Mocha brown plugs and 33 MPG

Comments On May 24, 2014:Makes bike start better/more reliably and gave me excellent fuel range with my 2.5 gallon tank. I could go 83 miles using JD Jet Kit recommendations for elevation and temperature. Easy to know if you're rich because it spooges. Lean needle clip one position and change main jet and no spooge even with a Krizzman style spark arrestor. For the WR300 it also includes a nozzle change in addition to a pilot jet, two needles, and several mains, jetting guide. It has prevented me from buying other bolt on carburetors. I'm keeping the stock Mikuni TMX now.

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Correct jetting is important!

Comments On May 18, 2014:Recently removed the factory smog pump (GYTR AIS removal kit), bought this kit on recommendation because the GYTR kit is very vanilla on jets. Now the bike runs the way it should from the factory -- factory jets are way too lean, especially above sea level. My WR450 came ALIVE, would definitely recommend to friends.

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Great kit and easy install!

Comments On May 14, 2014:Great addition to any newer bikes carburetor especially if you are fighting the "BOG"! With JD Jetting, needle and fuel mixture screw, my buddies CRF250X I installed this on really woke up!

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Instructional

How to adjust the position of the needle in your carburetor

How to properly clean a carburetor

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