SJ140-4 Mikuni HSR main jet N102-221, size 140

When you are dialing in the fueling on a Mikuni-equipped Harley, you need components you can trust for absolute precision. These EBC main jets are manufactured by A-BAX Precision Engineering to meet the exacting standards required for smooth throttle response and consistent performance. This size 140 jet is a direct replacement for Mikuni part number N102-221 and is a critical part of any tuning kit. These jets are designed to fit a wide variety of carburetors, including the HS40 and the HSR42, HSR45, and HSR48 performance series. They are also compatible with BSR and SV650 setups, as well as BN series carbs like the BN38, BN44, and the BN38I through BN46I range. Sold as a pack of four, these jets ensure you have the accuracy needed for a professional-grade tune-up.