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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 ATV Carburetor Jets Reviews – You could win up to $500 for reviewing products!

  • Cobra Jet Kit

    Cobra Jet Kit

    Tyson in UT


    I bought this jet kit after installing the cobra boulevard exhaust. All i was looking for was to stop the exhaust backfire when I let off the gas. Being in utah the stock jetting is lean and putting on the pipes makes it worse. I had Steadmans in Tooele install the kit because i wasnt too excited to drill out the mixture plug. It cost me 2 hours labor but worth every cent. No more backfire, no more using the choke on summer mornings, im getting 42 mpg, and up against my buddys roadstar 1700 he can no longer kick my butt in a drag. The 1100 out performs his 1700 not by much but enough that he cant pass or keep up. This is a pretty cheap mod that will certainly boost your performance!

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  • Pro X N424-21 Series Keihin Pilot Jet

    Pro X N424-21 Series Keihin Pilot Jet

    Nicholas in MI


    Works good in my 38mm PWK AS carb

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  • 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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  • 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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