Dirt Bike Air and Fuel
Dirt Bike Air & Fuel Systems at JJ Motorsports
Optimize your bike’s performance with high-quality air and fuel components from JJ Motorsports. Browse air filters, carburetors, and fuel system parts engineered to deliver clean airflow and a consistent fuel mix for peak efficiency. Ensure your bike runs smoothly by pairing these with other essential off-road dirt bike accessories.
Shop trusted brands like Motion Pro for cables and Uni Filter for high-flow filters. Explore related categories such as Dirt Bike Engine Parts for rebuilds or Dirt Bike Exhaust for complete tuning.
Top Dirt Bike Air & Fuel Products
- MOTION PRO Clutch Cable - Honda - Black Vinyl 02-0603 – Nylon-lined for smooth operation and OEM fit.
- UNI FILTER Filter - GS550/650 Miscellaneous NU-2439 – High-flow foam for better air intake and easy cleaning.
- MIKUNI Main Jet - 4-Pack N100604-1025 – Precision jets for VM16, HS40, HSR42/45/48 carbs.
- DYNOJET Power Vision 3 - Yamaha PV3-22-16 – Flash tunes with real-time data display for Yamaha models.
- UNI FILTER Filter - GS650G/GL/M NU-2440 – Precision fit with indefinite service life for Suzuki GS models.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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MOOSE RACING Torque Spacer Kit - KX250 10-201
MOOSE RACING
$41.95If you're running a KX250 and want more grunt down low without sacrificing mid-range response, this torque spacer kit is the straightforward solution. By shifting your power band to favor the low-end, you'll feel the difference immediately—whether you're...10080138- SKU:
- 10080138
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TORQUE
- FEATURES:
- INCLUDES GASKETS
- BASE COLOR:
- SILVER
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CNC-MACHINED
- PRODUCT NAME:
- INTAKE SPACER
- UNITS:
- KIT
$41.95Qty in Cart: 0Quantity:Price:$41.95Subtotal: -
MOOSE RACING Mud Radiator Cover - KTM 125 HPRMUDKT1252TM
MOOSE RACING
$3.95Mud and debris will clog your radiator core and tank your cooling performance—leaving you stranded on the trail or track. The MOOSE RACING Mud Radiator Cover uses slick silicone construction to shed mud before it sticks, keeping your KTM 125's cooling...19010787- SKU:
- 19010787
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- COVER
- TYPE:
- RADIATOR
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$3.95Qty in Cart: 0Quantity:Price:$3.95Subtotal: -
MOOSE RACING Mud Radiator Cover - 2-Stroke - KTM 250 HPRMUDKT2502TM
MOOSE RACING
$49.95Mud and debris clogging your radiator is a guaranteed performance killer on the trail—it chokes off airflow to your cooling fins and risks catastrophic overheating. The MOOSE RACING Mud Radiator Cover solves this with a silicone barrier that sheds mud...19010788- SKU:
- 19010788
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- TYPE:
- RADIATOR
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$49.95 -
MOOSE RACING Carburetor Repair Kit - Suzuki 26-1781
MOOSE RACING
$54.49A worn or dirty carburetor can rob your Suzuki of throttle response and fuel efficiency, leaving you stranded on the trail or track. This complete MOOSE RACING rebuild kit supplies OEM-grade gaskets, O-rings, float valves, and jets—the exact components...10031435- SKU:
- 10031435
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CARBURETOR
- PRODUCT NAME:
- REPAIR KIT
- UNITS:
- KIT
$54.49 -
MOOSE RACING Carburetor Repair Kit - Yamaha 26-1782
MOOSE RACING
$52.47A worn or compromised carburetor directly impacts throttle response, fuel atomization, and engine reliability—especially critical in racing and high-performance applications where precision fuel delivery is non-negotiable. This complete Moose Racing...10031436- SKU:
- 10031436
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- CARBURETOR
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$52.47 -
MOOSE RACING Carburetor Repair Kit - Yamaha 26-10049
MOOSE RACING
$37.32A carburetor rebuild is one of the most cost-effective maintenance tasks you can perform to restore fuel atomization and throttle response. This complete MOOSE RACING kit eliminates the guesswork by providing every gasket, O-ring, float valve, and jet...10031932- SKU:
- 10031932
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CARBURETOR
- PRODUCT NAME:
- REPAIR KIT
- UNITS:
- KIT
$37.32 -
MOOSE RACING Electric Fuel Injection Fuel Pump Rebuild Kit 47-2038-M
MOOSE RACING
$108.95A fuel pump that's lost its edge costs you reliability and performance on the track. This MOOSE RACING rebuild kit restores your electric fuel pump to OEM specifications without the expense of replacement, getting you back to consistent fueling and...10090091- SKU:
- 10090091
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- FUEL PUMP REBUILD KIT
$108.95 -
MOOSE RACING Electric Fuel Injection Fuel Pump Rebuild Kit 47-2032-M
MOOSE RACING
$108.95A fuel pump rebuild kit is essential maintenance for any EFI system running at peak performance. Over time, internal seals and components wear, reducing fuel pressure consistency and threatening engine reliability. The MOOSE RACING 47-2032-M gives you...10090092- SKU:
- 10090092
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- PRODUCT NAME:
- FUEL PUMP REBUILD KIT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$108.95 -
MOOSE RACING Electric Fuel Injection Fuel Pump Rebuild Kit 47-2040-M
MOOSE RACING
$108.95Fuel pump reliability is critical to consistent engine performance, and worn internal components compromise both throttle response and fuel delivery precision. The MOOSE RACING Electric Fuel Injection Fuel Pump Rebuild Kit 47-2040-M restores your pump to...10090093- SKU:
- 10090093
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- FUEL PUMP REBUILD KIT
- RIDING STYLE:
- OFF-ROAD
$108.95 -
MOOSE RACING Electric Fuel Injection Fuel Pump Rebuild Kit 47-2037-M
MOOSE RACING
$108.95Fuel pump reliability is critical to consistent engine performance, and wear on internal seals and components directly impacts fuel delivery pressure and atomization. This MOOSE RACING rebuild kit restores your fuel injection pump to OEM specifications,...10090094- SKU:
- 10090094
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- FUEL PUMP REBUILD KIT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- STREET
$108.95 -
UNI FILTER Filter - Honda NU-4132ST
UNI FILTER
$18.95Stock air filters restrict airflow and require constant replacement—costing you both performance and money. The UNI FILTER NU-4132ST delivers superior filtration without sacrificing the high-flow characteristics your engine demands, while its reusable...NU4132ST- SKU:
- NU4132ST
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER MEDIA STYLE:
- DUAL-LAYER
- MODEL:
- UNI-SEAL
- BASE COLOR:
- RED
- FILTER SHAPE:
- CYLINDER
- PRODUCT NAME:
- AIR FILTER
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- UNITS:
- EACH
$18.95 -
UNI FILTER Filter - Honda CRF450R NU-4133ST
UNI FILTER
$37.95The UNI FILTER NU-4133ST delivers superior airflow while maintaining exceptional dirt-stopping efficiency—critical when you're pushing your CRF450R to its limits. Unlike disposable filters, this two-stage design cleans in minutes with basic dishwashing...NU4133ST- SKU:
- NU4133ST
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MODEL:
- UNI-SEAL
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER MEDIA STYLE:
- DUAL-LAYER
- BASE COLOR:
- RED
- FILTER SHAPE:
- ROUND
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- UNITS:
- EACH
$37.95 -
PC RACING Pro Seal - KX450F PC26
PC RACING
$18.95Air filter seal integrity directly impacts engine performance and longevity. The PC Racing Pro Seal eliminates the mess and unpredictability of traditional grease-based seals, delivering a consistent, reliable barrier that keeps contaminants out of your...10114284- SKU:
- 10114284
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AIR FILTER
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- NEOPRENE
- MODEL:
- PRO-SEAL
- PRODUCT NAME:
- GASKET
$18.95 -
PC RACING Pro Seal - KX250/450F '06 PC18
PC RACING
$18.95Air filter seal integrity directly impacts engine performance and longevity by preventing unfiltered air from bypassing your filter media. The PC Racing Pro Seal eliminates the mess and unreliability of traditional filter grease, delivering a consistent,...10110686- SKU:
- 10110686
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- BASE COLOR:
- BLACK
- TYPE:
- AIR FILTER
- UNITS:
- EACH
- MATERIAL:
- NEOPRENE
- COLOR/FINISH:
- BLACK
- MODEL:
- PRO-SEAL
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
$18.95Qty in Cart: 0Quantity:Price:$18.95Subtotal: -
PC RACING Pro Seal - CRF450R '09 PC19
PC RACING
$18.95Air filter grease is messy, unreliable, and leaves your airbox vulnerable to contamination. The PC Racing Pro Seal eliminates this problem with a purpose-built neoprene gasket and specialized adhesive that creates a lasting, airtight seal without the...10111453- SKU:
- 10111453
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- BLACK
- TYPE:
- AIR FILTER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- NEOPRENE
- MODEL:
- PRO-SEAL
- PRODUCT NAME:
- GASKET
$18.95Qty in Cart: 0Quantity:Price:$18.95Subtotal: -
PC RACING Floƒâ€š‚® Air Filter PCF4X
PC RACING
$34.95A quality air filter is foundational to engine performance—it directly impacts airflow, combustion efficiency, and horsepower. The PC Racing Floâ„¢ Air Filter PCF4X delivers consistent, high-flow filtration through a dual-foam design that traps...10111873- SKU:
- 10111873
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- FEATURES:
- WASHABLE
- FILTER MEDIA STYLE:
- DUAL-LAYER
- FILTER SHAPE:
- ODD
- FILTER SHAPE:
- ROUND
- UNITS:
- EACH
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FLO®
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
$34.95 -
PC RACING Pro Seal - KTM SX/SXF '11 PC52
PC RACING
$19.95Air filter sealing is critical to engine performance—any bypass allows unfiltered dirt into your combustion chamber, reducing power and accelerating wear. The PC Racing Pro Seal eliminates the mess and unreliability of traditional filter grease by using...10112288- SKU:
- 10112288
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- NEOPRENE
- MODEL:
- PRO-SEAL
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- TYPE:
- AIR FILTER
$19.95 -
MOOSE RACING Carburetor Repair Kit - Suzuki 26-1541
MOOSE RACING
$45.40Carburetor performance directly impacts engine response, fuel economy, and reliability—and wear on internal components like gaskets, O-rings, and jets is inevitable with regular use. This MOOSE RACING rebuild kit supplies every gasket, seal, and jet...10030925- SKU:
- 10030925
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- CARBURETOR
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
$45.40 -
MOOSE RACING Carburetor Repair Kit - Suzuki 26-1542
MOOSE RACING
$53.48A worn or degraded carburetor compromises fuel atomization, throttle response, and overall engine performance—leaving you stranded or limping through races. This complete MOOSE RACING rebuild kit supplies OEM-equivalent gaskets, O-rings, float valves,...10030926- SKU:
- 10030926
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CARBURETOR
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
$53.48Qty in Cart: 0Quantity:Price:$53.48Subtotal: -
MOOSE RACING Carburetor Repair Kit - Honda 26-1544
MOOSE RACING
$47.42A worn or deteriorating carburetor can sabotage your engine's fuel delivery, causing poor throttle response, fuel leaks, and inconsistent performance. The MOOSE RACING Carburetor Repair Kit 26-1544 gives you everything needed to restore your Honda...10030928- SKU:
- 10030928
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CARBURETOR
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
$47.42
