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
-
UNI FILTER Air Filter - Honda XR250 NU-4038
UNI FILTER
$21.95A clean, efficient air filter is fundamental to maintaining peak engine performance and fuel economy on your XR250. The UNI Filter NU-4038 uses an open-cell polyurethane construction that delivers superior airflow while maintaining reliable...10113312- SKU:
- 10113312
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- COLOR/FINISH:
- BLACK
- FILTER SHAPE:
- CYLINDER
- MODEL:
- OEM
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REPLACEMENT
- BASE COLOR:
- BLACK
$21.95 -
UNI FILTER Air Filter - Honda XL185S NU-4041
UNI FILTER
$21.95The UNI FILTER NU-4041 is engineered specifically for the Honda XL185S, delivering the airflow efficiency your engine demands without sacrificing filtration quality. Its open-cell polyurethane construction maintains peak air intake while trapping...10113316- SKU:
- 10113316
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$21.95 -
UNI FILTER Air Filter - Beta 250/400 NU-3804ST
UNI FILTER
$38.95Stock air filters restrict airflow and reduce power output—especially critical on high-revving dirt bikes where every breath matters. The UNI FILTER NU-3804ST delivers maximum airflow without compromising filtration, keeping your Beta 250/400 running...10113318- SKU:
- 10113318
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- FILTER SHAPE:
- ROUND
- COLOR/FINISH:
- BLACK
- FILTER MEDIA MATERIAL:
- FOAM
- COLOR/FINISH:
- RED
- MODEL:
- OEM
- RIDING STYLE:
- STREET
- TYPE:
- REPLACEMENT
- UNITS:
- EACH
$38.95 -
UNI FILTER Air Filter - Beta 350/400 NU-3805ST
UNI FILTER
$38.95A quality air filter directly impacts engine performance, throttle response, and fuel efficiency—especially in high-demand racing applications where every cubic foot of air matters. The UNI FILTER NU-3805ST delivers maximum airflow without sacrificing...10113319- SKU:
- 10113319
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- REPLACEMENT
- UNITS:
- EACH
- MODEL:
- OEM
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- BASE COLOR:
- RED
- FILTER SHAPE:
- ROUND
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
$38.95 -
UNI FILTER Air Filter - Gas Gas NU-3806ST
UNI FILTER
$38.95A properly functioning air filter is non-negotiable for consistent engine performance and longevity. The UNI FILTER NU-3806ST delivers unrestricted airflow to your Gas Gas while maintaining filtration efficiency, preventing dust and debris from...10113320- SKU:
- 10113320
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REPLACEMENT
- FILTER SHAPE:
- ROUND
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- MODEL:
- OEM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$38.95 -
UNI FILTER Air Filter - Honda CRF110 NU-4146ST
UNI FILTER
$20.95A quality air filter is your engine's first line of defense against dirt, dust, and contaminants that rob performance and reduce engine life. The UNI FILTER NU-4146ST delivers superior filtration for your Honda CRF110 without sacrificing the airflow your...10113321- SKU:
- 10113321
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- RED
- COLOR/FINISH:
- YELLOW
- FILTER SHAPE:
- PANEL
- MODEL:
- OEM
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REPLACEMENT
- BASE COLOR:
- RED
$20.95 -
UNI FILTER Air Filter - KX450/250F NU-2603ST
UNI FILTER
$37.95A quality air filter is foundational to engine health and performance—it's your first line of defense against dirt ingestion while maximizing airflow to the combustion chamber. The UNI FILTER NU-2603ST delivers superior filtration and flow for KX450/250F...10113621- SKU:
- 10113621
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- ODD
- FILTER SHAPE:
- ROUND
- MODEL:
- ULTRA-SEAL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE II
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- STANDARD
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
$37.95 -
UNI FILTER Air Filter - Bultaco Persang NU-3204ST
UNI FILTER
$35.95A quality air filter is foundational to engine performance—it directly impacts airflow, throttle response, and longevity of your engine internals. The UNI FILTER NU-3204ST delivers superior filtration for your Bultaco Persang without sacrificing the...10112495- SKU:
- 10112495
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BASE COLOR:
- RED
- MODEL:
- UNI-SEAL
- PRODUCT NAME:
- AIR FILTER
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
- RIDING STYLE:
- OFF-ROAD
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- COMPETITION
- TYPE:
- MULTI STAGE
- UNITS:
- EACH
$35.95 -
UNI FILTER Air Filter - Can-Am NU-8001ST
UNI FILTER
$35.95The UNI FILTER Air Filter for Can-Am delivers superior airflow while maintaining effective dirt filtration—a combination that directly improves engine responsiveness and fuel efficiency. Unlike disposable filters that demand constant replacement, this...10112498- SKU:
- 10112498
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- FILTER MEDIA STYLE:
- DUAL-LAYER
- FILTER SHAPE:
- CYLINDER
- UNITS:
- EACH
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- MODEL:
- ULTRA-SEAL
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
$35.95 -
UNI FILTER Air Filter - CZ NU-1801ST
UNI FILTER
$37.95A quality air filter is fundamental to engine performance—restricting airflow costs you horsepower and throttle response. The UNI FILTER NU-1801ST delivers unrestricted flow while maintaining superior filtration, and its reusable design eliminates the...10112499- SKU:
- 10112499
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- FEATURES:
- WASHABLE
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER FOR EUROPEAN MODELS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE II
- BASE COLOR:
- RED
- UNITS:
- EACH
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- STANDARD
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
$37.95 -
UNI FILTER Air Filter - Honda CT90/110 NU-4016
UNI FILTER
$21.95Stock air filters restrict airflow and demand frequent replacement—a constant drain on performance and your wallet. The UNI FILTER NU-4016 delivers superior filtration and airflow for your Honda CT90/110 while remaining reusable indefinitely, eliminating...10112500- SKU:
- 10112500
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- BLUE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- STYLE:
- STANDARD
- FEATURES:
- WASHABLE
- FILTER MEDIA STYLE:
- DUAL-LAYER
- MODEL:
- ULTRA-SEAL
- TYPE:
- STAGE II
$21.95 -
UNI FILTER Air Filter - CR125 '74 NU-4010
UNI FILTER
$35.95A quality air filter is fundamental to engine performance—it directly impacts throttle response, fuel efficiency, and engine longevity by preventing abrasive particulates from entering your combustion chamber. The UNI FILTER CR125 '74 NU-4010 delivers...10112501- SKU:
- 10112501
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- FILTER MEDIA STYLE:
- DUAL-LAYER
- FILTER SHAPE:
- CYLINDER
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- MODEL:
- ULTRA-SEAL
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- BLUE
- FILTER SHAPE:
- OVAL
- TYPE:
- STAGE II
- PRODUCT NAME:
- AIR FILTER
- STYLE:
- STANDARD
$35.95 -
UNI FILTER Air Filter - CR125/250 '75-'78 NU-4025ST
UNI FILTER
$35.95Stock air filters restrict airflow and require frequent replacement—a UNI FILTER gives you reusable performance without compromise. The two-stage design maximizes breathing room for your CR125/250 while the Ultra Seal grease groove maintains a reliable...10112503- SKU:
- 10112503
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- FILTER SHAPE:
- CYLINDER
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- STANDARD
- TYPE:
- STAGE II
- BASE COLOR:
- RED
- FILTER SHAPE:
- ODD
- FILTER SHAPE:
- OVAL
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
$35.95 -
UNI FILTER Air Filter - CR125R '79-'80 NU-4044ST
UNI FILTER
$35.95Stock air filters restrict flow and require frequent replacement—the UNI FILTER NU-4044ST delivers superior airflow while remaining reusable for years, saving you money and keeping your CR125R running lean and responsive. Two-stage construction and the...10112504- SKU:
- 10112504
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STANDARD
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER MEDIA STYLE:
- DUAL-LAYER
- MODEL:
- ULTRA-SEAL
- TYPE:
- STAGE II
- FILTER SHAPE:
- CYLINDER
- UNITS:
- EACH
$35.95 -
UNI FILTER Air Filter - CR250 '73-'74 NU-4008
UNI FILTER
$35.95A high-flow air filter directly impacts engine performance by reducing intake restriction while maintaining superior filtration—critical for maintaining power output and engine longevity on your CR250. The UNI FILTER NU-4008 delivers the airflow gains...10112505- SKU:
- 10112505
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- BLUE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- STANDARD
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- MODEL:
- ULTRA-SEAL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE II
$35.95 -
UNI FILTER Air Filter - CR250 '78-'80 NU-4035ST
UNI FILTER
$29.95If you're running a CR250 '78-'80, airflow is everything—and a restrictive stock filter is costing you performance. The UNI FILTER NU-4035ST delivers superior filtration without the horsepower penalty, keeping your engine breathing freely while stopping...10112506- SKU:
- 10112506
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- ODD
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE II
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- STANDARD
- BASE COLOR:
- RED
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
$29.95 -
UNI FILTER Air Filter - Husqvarna NU-1001ST
UNI FILTER
$37.95The UNI FILTER Air Filter for Husqvarna delivers superior airflow without compromising filtration—a critical combination for maintaining peak engine performance and reliability. Unlike disposable filters that degrade over time, this reusable design...10112507- SKU:
- 10112507
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BASE COLOR:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
- STYLE:
- STANDARD
- TYPE:
- STAGE II
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- CYLINDER
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- FILTER MEDIA STYLE:
- DUAL-LAYER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$37.95 -
UNI FILTER Air Filter - Husqvarna NU-1002ST
UNI FILTER
$37.95Stock air filters sacrifice longevity for convenience—but the UNI FILTER NU-1002ST breaks that tradeoff by delivering reusable performance without compromise. Its two-stage design maximizes airflow while maintaining exceptional filtration, giving your...10112508- SKU:
- 10112508
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- FEATURES:
- WASHABLE
- FILTER MEDIA STYLE:
- DUAL-LAYER
- MODEL:
- ULTRA-SEAL
- STYLE:
- COMPETITION
- TYPE:
- MULTI STAGE
- BASE COLOR:
- RED
- FILTER SHAPE:
- CYLINDER
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
$37.95 -
UNI FILTER Air Filter - Husqvarna '79-'82 NU-1003ST
UNI FILTER
$37.95Stock air filters restrict airflow and require frequent replacement—a constant drain on performance and your wallet. The UNI FILTER NU-1003ST delivers superior filtration without compromise, allowing your Husqvarna to breathe freely while trapping dirt...10112509- SKU:
- 10112509
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- STYLE:
- STANDARD
- TYPE:
- STAGE II
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- MODEL:
- ULTRA-SEAL
- RIDING STYLE:
- OFF-ROAD
- FILTER MEDIA STYLE:
- DUAL-LAYER
- FILTER SHAPE:
- CYLINDER
- UNITS:
- EACH
$37.95 -
UNI FILTER Air Filter - Maico '80-'81 NU-1202ST
UNI FILTER
$37.95The UNI FILTER NU-1202ST delivers superior airflow and filtration for your Maico '80-'81, keeping your engine breathing freely while protecting it from contaminants. Unlike disposable filters that choke performance and demand constant replacement, this...10112512- SKU:
- 10112512
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- RECTANGULAR
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- COMPETITION
- FILTER MEDIA STYLE:
- DUAL-LAYER
- TYPE:
- MULTI STAGE
- BASE COLOR:
- RED
- FILTER SHAPE:
- ELONGATED
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
- MODEL:
- UNI-SEAL
$37.95
