Mikuni Main Jets

Genuine Mikuni jets provide the best replacement or calibration solution for your aftermarket or O.E.M. Mikuni carburetors. Do not use an imitation, nothing substitutes for O.E.M. quality and Mikuni jetting is guaranteed to be the exact size indicated because of high manufacturing tolerances.

Large HEX TYPE used in most Mikuni VM and TM and others that originally came with 4/042 main jets.

Brass main jets are available in sizes 50 through 200 in increments of 5, in sizes 210 through 500 in increments of 10 and in sizes 520 through 720 in increments of 20.

Note: Order quantity TWO for a set.

You can return most new, unopened items within 14 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item). If you need to return an item, please contact us beforehand with the order number and information regarding the item(s) you would like to exchange. Please note, electronic items are non-refundable.

If you're purchasing one of our polished products, please use a new microfiber and a non-ammonia window cleaner to clean any fingerprints and grease. We recommend using Simi Chrome paste to touchup polished parts.