Mikuni Carburetors & Accessories
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Mikuni Carburetors & Accessories: Precision Fueling for Powersports
When it comes to carburetion in the powersports world, few names carry as much weight as Mikuni. Mikuni manufactures high-performance carburetors and tuning components for street and drag racing motorcycles, ATVs, and other powersports applications, and has been making parts designed to give you precise fuel mixture metering while still delivering smooth throttle response since 1968. That decades-long commitment to engineering quality is exactly why Mikuni remains the go-to brand for riders who demand reliable, tunable fuel delivery.
A Deep Lineup of Carburetor Series
What sets Mikuni apart in the Carburetors & Accessories category is the sheer breadth of their carburetor families. Mikuni offers needle and jet compatibility across a wide range of series, including the BDS, BN, BNI, BS, HSR, RS, SBN, TM flat slide, TMS, TMX, and VM series carburetors. This variety means Mikuni has an engineered solution for everything from vintage two-stroke dirt bikes to modern four-stroke cruisers and personal watercraft.
The VM Series is a classic round-slide design beloved for its simplicity and tunability on both 2- and 4-stroke engines. The HSR Series is a favorite upgrade for Harley-Davidson big-twins, known for improving throttle response and mid-range power. The TM flat slide and TMX Series are popular in off-road and racing applications where crisp throttle response and consistent fuel delivery at varying throttle angles are critical. For personal watercraft, the SBN (Super BN) Series is a staple, with individual replacement pieces available for the Mikuni Super BN 38mm, 44mm, and 46mm carburetors.
Accessories That Keep You Tuned and Running
The Mikuni ecosystem goes well beyond the carburetor itself. The Mikuni accessories lineup includes jets, pocket tuners, rebuild kits, valve and seat assemblies, vacuum fuel pumps, float bowl screws, and more for platforms like Suzuki, Kawasaki, and Yamaha. This comprehensive parts ecosystem means you can fine-tune your air-fuel ratio for altitude, temperature, or performance modifications without swapping out the entire carburetor.
Jet kits for the HSR series, for example, include a range of main jets, pilot jets, accelerator pump jets, and slide needles — everything needed to dial in fueling across the entire RPM range. For rebuilds, HSR rebuild kits include components such as the top cover gasket, jet needle E-ring and washer, throttle valve seal, pilot air O-ring, fuel joint O-ring, accelerator pump O-ring, needle valve assembly, float bowl O-ring/gasket, overflow hose, float bowl screws, and accelerator pump rod boot.
Why Choose Genuine Mikuni Parts?
With counterfeit and low-quality carburetor components flooding the market, sourcing genuine Mikuni parts matters. OEM-quality tolerances are critical for consistent needle taper profiles, precise jet orifice sizing, and durable float valves — all of which directly affect how cleanly your engine idles, transitions, and pulls at wide-open throttle. Genuine Mikuni accessories are manufactured to the same exacting standards as the original carburetors, ensuring a proper fit and long service life.
Whether you're performing a routine rebuild on a well-used bike, jetting for a new exhaust and intake combination, or upgrading to a performance carburetor on a classic machine, Mikuni's lineup of carburetors and accessories gives you the tools to do it right.