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Carburetor Jets from Rocky Mountain ATV/MC

High quality aftermarket Keihin and Mikuni Carburetor Jets. You can easily tune your powersport machine for altitude and riding style by choosing the best size main jet and pilot jet for your machine. Get some low cost performance gains here!

Latest Dual Sport Carburetor Jets Reviews – You could win up to $500 for reviewing products!

  • Keihin 99101-116 Series Main Jet

    Keihin 99101-116 Series Main Jet

    Ken in CO

    Higher altitude jet for 2010, 2011 Arctic Cat 90

    I live at 6400 feet, and bought this #78 jet to replace the stock #80 main jet in my kids' 2010 and 2011 Arctic Cat 90 ATVs. It fit perfectly and the ATVs are running great.

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  • K & L Carburetor Parts Kit

    K & L Carburetor Parts Kit

    Jim in VA

    Great for the price

    Had to flex it a bit to bolt it on. Looks good. Nice price. Previous comment for different part. Had all the parts i needed

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  • Pro X N424-21 Series Keihin Pilot Jet

    Pro X N424-21 Series Keihin Pilot Jet

    Brad in ON

    Didn't Like

    Didn't seem to fit or thread in as smooth as oem, I bought oem jets instead threaded in better

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  • JD Jetting Jet Kit

    JD Jetting Jet Kit

    Wil in Pennsylvania

    Change main jet first (before needle)

    Put this on my 2007 crf250x used 160 main, used the 42 it was same as stock but put new one anyway The red needle on 5th from top would only fit once the main jet was changed (stock was 130). did modified air box mod, removed screen on air filter, twin air filter, removed baffle from exhaust pipe. Also boysen quick shot 3. also put quick adjust fuel screw. turned fuel screw 2 1/2 out. took better part of a hot august day to complete. It was well worth the time and money. Took bike out around yard front tire comes up easier, more bottom end power and less bog look forward to a long ride. make sure to read all of instructions as my carb was an alternate instruction

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  • Pro X N224.103 Series Mikuni Pilot Jet

    Pro X N224.103 Series Mikuni Pilot Jet

    Evan in NH

    Pilot jets

    Worked as stated, ran great after install!

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