Dirt Bike Carburetor Kits
Dirt Bike Carburetor Kits & Performance Carburetors for Honda, Yamaha & KTM at JJ Motorsports
Optimize your dirt bike's fuel delivery and throttle response with premium carburetor kits and performance carburetors from JJ Motorsports. Our selection includes high-flow Mikuni flat-slide and round-slide carburetors, complete rebuild kits, jets, and accessories designed for superior atomization, increased horsepower, and easy tuning in motocross, enduro, and trail applications. Compatible with popular models like Honda CRF, Yamaha YZ/WR, Kawasaki KX, and KTM SX/EXC, these Japanese-made components ensure reliable performance, precise metering, and durability in dusty, high-RPM conditions. From 36mm flat-slide upgrades for snappy acceleration to 44mm VM series for big-bore power, we have the carbs to match your 2-stroke or 4-stroke engine needs.
Shop trusted brands like Mikuni for race-proven quality. Explore related categories such as dirt bike air and fuel for filters and jets or dirt bike engines and components for rebuild essentials.
Top Dirt Bike Carburetor Kits
- Mikuni Flat Slide Carburetor 36mm TM36-2 – Innovative flat slide design for enhanced airflow and throttle response; center-pull mechanism, 36mm bore, includes main jet 280, pilot 50; ideal for off-road upgrades.
- Mikuni VM Series Carburetor 44mm VM44-3 – Round slide carb with excellent flow characteristics, clamp-type mounting, left-side adjustments; 44mm bore, main jet 310, pilot 35.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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MIKUNI TMX Series Carburetor TM38-27
MIKUNI
$229.00Lightweight, flat slide design with smooth bore venturi provides improved throttle response and a wider powerband, Baffled chamber enclosing main jet allows for improved performance on rough terrain, Twin floats move independently to improve cornering...10020042- SKU:
- 10020042
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- BASE FINISH:
- NATURAL
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- CARBURETOR
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BORE SIZE METRIC:
- 38.00 MM
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- STYLE:
- FLAT SLIDE
$229.00Qty in Cart: 0Quantity:Price:$229.00Subtotal: -
MIKUNI VM Series Carburetor - 44mm VM44-3
MIKUNI
$184.00Adjustment screws and enricher are on left side of carburetor unless noted, Round slide configuration offers great flow characteristics, Use Mikuni jets and parts for best results, Clamp type mounting unless noted via footnote, Made in Japan10020057- SKU:
- 10020057
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- AIR JET:
- 0.5
- CARBURETOR SIZE METRIC:
- 44.00 MM
- COLOR/FINISH:
- NATURAL
- FEATURES:
- CLAMP-ON TYPE MOUNTING
- MAIN JET:
- 310 (4/042)
- NEEDLE VALVE:
- 3.3 (VM34/39)
- RIDING STYLE:
- ATV
- SLIDE CUTAWAY:
- 2.5 (VM44/23)
- BASE COLOR:
- SILVER
- NEEDLE JET:
- AA-5 (224 SERIES)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- COLOR/FINISH:
- SILVER
- NEEDLE:
- 7F7
- PILOT JET:
- 35 (VM22/210)
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 52
$184.00Qty in Cart: 0Quantity:Price:$184.00Subtotal: -
MIKUNI TM Series Carburetor TM36-68
MIKUNI
$385.00Flat slide design helps create a smooth bore effect, increasing air flow, Significant performance improvements over older round slide carbs, Great throttle response because of more precise fuel metering, All are center-pull style throttle, unless noted...10020040- SKU:
- 10020040
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- NEEDLE VALVE:
- -
- PILOT JET:
- 12.5 (VM28/486)
- UNITS:
- EACH
- AIR JET:
- 1.0
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- MAIN JET:
- 130 (N100.604)
- NEEDLE:
- 9DZH6-50
- RIDING STYLE:
- ATV
- CARBURETOR SIZE METRIC:
- 36.00 MM
- NEEDLE JET:
- P-8 (568 SERIES)
- PRODUCT NAME:
- CARBURETOR BELL CRANK PUSH-PULL
- RIDING STYLE:
- STREET
- SLIDE CUTAWAY:
- -
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 42
- STYLE:
- FLAT SLIDE
$385.00Qty in Cart: 0Quantity:Price:$385.00Subtotal: -
MIKUNI VM Series Carburetor - 20mm VM20-273
MIKUNI
$165.00Adjustment screws and enricher are on left side of carburetor unless noted, Round slide configuration offers great flow characteristics, Use Mikuni jets and parts for best results, Clamp type mounting unless noted via footnote, Made in Japan10020047- SKU:
- 10020047
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- SILVER
- FEATURES:
- FLANGE TYPE MOUNTING
- NEEDLE:
- 4J13
- NEEDLE JET:
- O-6/N-6 (238/332 SERIES)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- RIDING STYLE:
- OFF-ROAD
- SLIDE CUTAWAY:
- 2.0 (VM38/24)
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 20
- AIR JET:
- 0.5
- COLOR/FINISH:
- NATURAL
- NEEDLE VALVE:
- 1.5 (VM15/172)
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- BASE COLOR:
- SILVER
- CARBURETOR SIZE METRIC:
- 20.00 MM
- MAIN JET:
- 180 (4/042)
- PILOT JET:
- 22.5 (M28/1001)
- UNITS:
- EACH
$165.00Qty in Cart: 0Quantity:Price:$165.00Subtotal: -
MIKUNI VM Series Carburetor - 24mm VM24-512
MIKUNI
$165.00Adjustment screws and enricher are on left side of carburetor unless noted, Round slide configuration offers great flow characteristics, Use Mikuni jets and parts for best results, Clamp type mounting unless noted via footnote, Made in Japan10020049- SKU:
- 10020049
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- NEEDLE JET:
- N-8 (864 SERIES)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- RIDING STYLE:
- STREET
- CARBURETOR SIZE METRIC:
- 24.00 MM
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- BASE COLOR:
- SILVER
- FEATURES:
- RIGHT SIDE IDLE ADJUSTMENT SCREW
- MAIN JET:
- 210 (4/042)
- NEEDLE:
- 5L14-4
- NEEDLE VALVE:
- 2.0 (VM26/26)
- RIDING STYLE:
- ATV
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 35
- AIR JET:
- 0.8
- COLOR/FINISH:
- NATURAL
- PILOT JET:
- 40 (VM22/210)
- SLIDE CUTAWAY:
- 1.5 (VM26/21)
- UNITS:
- EACH
$165.00Qty in Cart: 0Quantity:Price:$165.00Subtotal:
