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Jets and Jet Kits from Rocky Mountain ATV/MC

We carry a wide range of jets and jet kits.

Latest Motorcycle Jets and Jet Kits Reviews – You could win up to $500 for reviewing products!

  • Keihin 99101-116 Series Main Jet

    Keihin 99101-116 Series Main Jet

    Paul in CA

    Used in Kymco Grandvista 250cc GY6 Keihin CVK30

    I used this in my Kymco Grandvista (aka Grand Dink) 250cc scooter with the stock Keihin CVK30 carb. Works great. I have a stock exhaust and air filter. The problem was the carb got clogged from sitting and I cleaned it several times but there was still a small off idle hesitation. I cured that with #48 pilot jet. Stock was #38. I ordered a variety of sizes from #42 to #58 and that worked best. Regarding the Main Jet: Stock was #102 and I tried #115 and that was WAY too big and the scooter did not run right. I have not tried #105 yet I wish they offered a #103 or #104 as I'm worried that #105 might still be too big. Fits fine but inside shape is a little different than oem.

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  • Cobra Jet Kit

    Cobra Jet Kit



    This Cobra Jet Kit is a complete waste of money. How they get away charging you this much for a couple needles and two cheap drill bits is beyond me. Oh, I forgot the screw to pull out the plug that covers the adjustment screw. It did not make my bike run any better and I will definitely be taking them out.

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  • Keihin N424-74C Series Pilot Jet

    Keihin N424-74C Series Pilot Jet

    edward in IA

    works like oem.

    buy it.

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  • Keihin N424-25B Series Pilot Jet

    Keihin N424-25B Series Pilot Jet

    jeff in CA

    Happy with the jets

    I was glad to see they had some OEM jets also, they delivered quickly and where accurate in their order. I will be glad to order from Rocky Mountain again.

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