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
-
MIKUNI TMX Series Carburetor TM38-27
MIKUNI
$229.00If you're running a carbureted engine and want noticeably sharper throttle response with better performance across the RPM range, the MIKUNI TMX Series TM38-27 delivers exactly that. The flat-slide design with a smooth bore venturi eliminates the lag...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
$184.00The MIKUNI VM44-3 is a precision-engineered 44mm carburetor purpose-built for high-performance applications where reliable fuel delivery and responsive throttle control are non-negotiable. The round slide design optimizes intake flow characteristics,...10020057- 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
$184.00 -
MIKUNI TM Series Carburetor TM36-68
MIKUNI
$385.00If you're running an older round-slide carburetor, you're leaving performance on the table. The MIKUNI TM36-68 flat-slide design creates a smooth bore effect that dramatically increases air flow, translating to sharper throttle response and more precise...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
$165.00The Mikuni VM20-273 delivers precise fuel atomization and responsive throttle control for small-displacement engines where carburetor tuning directly impacts performance. Its round-slide design maximizes intake flow while maintaining the metering...10020047- 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
$165.00 -
MIKUNI VM Series Carburetor - 24mm VM24-512
MIKUNI
$165.00The Mikuni VM24-512 is a precision-engineered 24mm carburetor built for engines demanding reliable fuel delivery across variable load conditions. Its round slide design maximizes airflow efficiency while maintaining precise atomization, making it the...10020049- 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:
