KTM Two-Stroke Carburetor Rebuild Kit (2002–2025) | Boss Bearing

Restore your carburetor to factory performance with the Boss Bearing 26-1514B Carburetor Rebuild Kit — a complete repair solution for two-stroke dirt bikes from KTM, Beta, Husqvarna, Gas-Gas, Husaberg, and Sherco. Whether your bike is bogging on acceleration, leaking fuel, idling rough, or just won't start, a worn carburetor is often the culprit — and this kit gives you everything needed to bring it back to spec in one purchase.

This kit is built around stock OEM carburetor specifications and includes all the critical wear components: jet needles, main jet, slow/pilot jet, float valve, float chamber gasket, and springs. No hunting down individual parts — everything arrives together so you can complete the rebuild in one session.

Designed for the serious trail rider, enduro racer, or weekend warrior who works on their own machine, this kit is a go-to solution when you're chasing fuel delivery issues or doing a full top-end refresh and want the carb sorted at the same time. It fits a broad range of Keihin carbureted two-stroke platforms used across model years 2002–2025.

Kit includes:
• Main jet
• Slow / pilot jet
• Jet needle
• Float valve and seat
• Float chamber gasket
• Carburetor springs

For closed-course/off-road racing use only. Please review product image to confirm kit contents before purchase.

This carburetor rebuild kit fits a wide range of two-stroke dirt bikes including the KTM 125 SX, 150 SX, 250 SX, 250 EXC, 300 XCW, Beta RR 250 & 300, Husqvarna TC125, TC250, TE250, TE300, Gas-Gas EC250, EC300, Sherco 250 SE-R and 300 SE-R — spanning model years from 2002 through 2025