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 Filter - YZ80 NU-3229ST
UNI FILTER
$35.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...NU3229ST- SKU:
- NU3229ST
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- FILTER MEDIA STYLE:
- DUAL-LAYER
- FILTER SHAPE:
- CYLINDER
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- TAPERED
- MODEL:
- ULTRA-SEAL
$35.95 -
UNI FILTER Air Filter - Yamaha NU-3238ST
UNI FILTER
$42.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...NU3238ST- SKU:
- NU3238ST
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- FILTER MEDIA MATERIAL:
- FOAM
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- BASE COLOR:
- RED
- FILTER SHAPE:
- OVAL
- FEATURES:
- WASHABLE
- RIDING STYLE:
- STREET
- TYPE:
- STAGE II
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- FILTER MEDIA STYLE:
- DUAL-LAYER
$42.95 -
UNI FILTER Filter - TTR-125 NU-3242ST
UNI FILTER
$29.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...NU3242ST- SKU:
- NU3242ST
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- BASE COLOR:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
- PRODUCT NAME:
- AIR FILTER
- MODEL:
- ULTRA-SEAL
- RIDING STYLE:
- OFF-ROAD
- FEATURES:
- WASHABLE
- FILTER MEDIA STYLE:
- DUAL-LAYER
- FILTER SHAPE:
- ROUND
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- UNITS:
- EACH
$29.95 -
UNI FILTER Filter - Yamaha YZ85 NU-3243ST
UNI FILTER
$33.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...NU3243ST- SKU:
- NU3243ST
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- BASE COLOR:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- RED
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- ROUND
- TYPE:
- STAGE II
- UNITS:
- EACH
- FILTER MEDIA STYLE:
- DUAL-LAYER
- MODEL:
- UNI-SEAL
$33.95 -
UNI FILTER Filter - TTR-90 NU-3250ST
UNI FILTER
$21.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...NU3250ST- SKU:
- NU3250ST
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- FEATURES:
- WASHABLE
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- UNITS:
- EACH
- FILTER MEDIA STYLE:
- DUAL-LAYER
- FILTER SHAPE:
- UNIQUE
- MODEL:
- UNI-SEAL
- BASE COLOR:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
$21.95 -
UNI FILTER Filter - WR250/450F NU-3251ST
UNI FILTER
$37.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...NU3251ST- SKU:
- NU3251ST
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER MEDIA STYLE:
- DUAL-LAYER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- STYLE:
- COMPETITION
- BASE COLOR:
- RED
- FILTER SHAPE:
- ROUND
- TYPE:
- STAGE II
- UNITS:
- EACH
$37.95 -
UNI FILTER Filter - Honda XR/CRF NU-4131ST
UNI FILTER
$11.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...NU4131ST- SKU:
- NU4131ST
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- STYLE:
- COMPETITION
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER MEDIA STYLE:
- DUAL-LAYER
- MODEL:
- UNI-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- RED
- FILTER SHAPE:
- ROUND
- TYPE:
- STAGE II
- UNITS:
- EACH
$11.95 -
UNI FILTER Filter - DRZ/KLX125 NU-2484ST
UNI FILTER
$31.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...10110236- SKU:
- 10110236
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- RED
- FILTER SHAPE:
- ROUND
- PRODUCT NAME:
- AIR FILTER
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER MEDIA STYLE:
- DUAL-LAYER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- UNI-SEAL
$31.95 -
UNI FILTER Filter - KTM NU-1414ST
UNI FILTER
$14.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...10110237- SKU:
- 10110237
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- FILTER SHAPE:
- RECTANGULAR
- FEATURES:
- WASHABLE
- FILTER MEDIA STYLE:
- DUAL-LAYER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- UNITS:
- EACH
- BASE COLOR:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
- MODEL:
- UNI-SEAL
- PRODUCT NAME:
- AIR FILTER
$14.95 -
UNI FILTER Foam Filter - Black BF-4
UNI FILTER
$20.95Sheets of foam in several densities for fabricating air filters, Perfect for vintage and custom applications10111025- SKU:
- 10111025
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- FILTER MEDIA STYLE:
- FINE
- PRODUCT NAME:
- FOAM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AIR FILTER
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 15.98' X 12.01'
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- BASE COLOR:
- BLACK
$20.95 -
UNI FILTER Foam Filter - Red BF-5
UNI FILTER
$20.95Sheets of foam in several densities for fabricating air filters, Perfect for vintage and custom applications10111026- SKU:
- 10111026
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 15.98' X 12.01'
- PRODUCT NAME:
- FOAM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- BASE COLOR:
- RED
- FILTER MEDIA STYLE:
- COARSE
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AIR FILTER
$20.95 -
UNI FILTER Filtered Air Vents - 6 Pack UFV-6
UNI FILTER
$15.95Foam-filtered air vents increase the pre-filtered air supply to the airbox, May be cleaned and re-oiled, Made in the U.S.A., 1" diameterUFV6- SKU:
- UFV6
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AIR FILTER
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- ROUND
- PRODUCT NAME:
- AIR VENT
- BASE COLOR:
- BLACK
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- UNITS:
- 6 PACK
$15.95 -
PARTS UNLIMITED Watercraft Primer Kit PD820005
PARTS UNLIMITED
$34.36Keihin primer kit is made exclusively to fit all Keihin CDK40 carburetors, Mikuni primer kit fits all Mikuni carburetors, Makes sure the watercraft starts every time, Complete with all the necessary hardwarePD820005- SKU:
- PD820005
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- PRIMER KIT
- STYLE:
- SINGLE CARBURETOR
- RIDING STYLE:
- WATERCRAFT
- STYLE:
- MIKUNI
- UNITS:
- KIT
$34.36Qty in Cart: 0Quantity:Price:$34.36Subtotal: -
PARTS UNLIMITED Keihin CDK40 Carburetor Primer Kit PD820006
PARTS UNLIMITED
$43.08Keihin primer kit is made exclusively to fit all Keihin CDK40 carburetors, Mikuni primer kit fits all Mikuni carburetors, Makes sure the watercraft starts every time, Complete with all the necessary hardwarePD820006- SKU:
- PD820006
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- KIT
- STYLE:
- KEIHIN
- PRODUCT NAME:
- PRIMER KIT
- STYLE:
- SINGLE CARBURETOR
$43.08 -
PARTS UNLIMITED Dual Mikuni Primer Kit PD820007
PARTS UNLIMITED
$45.71For removal of stock chokeshaft and plate to provide effortless airflow into the carbs, Connectors and plugs sold to dealer in 10-packs; sold to consumer as each, Include all hose fittings and plungers necessary to convert from stockPD820007- SKU:
- PD820007
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- WATERCRAFT
- STYLE:
- MIKUNI
- STYLE:
- DUAL CARBURETOR
- UNITS:
- KIT
- PRODUCT NAME:
- PRIMER KIT
$45.71Qty in Cart: 0Quantity:Price:$45.71Subtotal: -
PARTS UNLIMITED Dual Keihin Primer Kit PD820008
PARTS UNLIMITED
$45.71For removal of stock chokeshaft and plate to provide effortless airflow into the carbs, Connectors and plugs sold to dealer in 10-packs; sold to consumer as each, Include all hose fittings and plungers necessary to convert from stockPD820008- SKU:
- PD820008
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- PRIMER KIT
- STYLE:
- DUAL CARBURETOR
- UNITS:
- KIT
- RIDING STYLE:
- WATERCRAFT
- STYLE:
- KEIHIN
$45.71 -
PARTS UNLIMITED Triple Mikuni Primer Kit PD820009
PARTS UNLIMITED
$41.90For removal of stock chokeshaft and plate to provide effortless airflow into the carbs, Connectors and plugs sold to dealer in 10-packs; sold to consumer as each, Include all hose fittings and plungers necessary to convert from stockPD820009- SKU:
- PD820009
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- RIDING STYLE:
- WATERCRAFT
- STYLE:
- MIKUNI
- STYLE:
- TRIPLE CARBURETOR
- PRODUCT NAME:
- PRIMER KIT
- UNITS:
- KIT
$41.90Qty in Cart: 0Quantity:Price:$41.90Subtotal: -
PARTS UNLIMITED Triple Keihin Primer Kit PD820010
PARTS UNLIMITED
$48.93For removal of stock chokeshaft and plate to provide effortless airflow into the carbs, Connectors and plugs sold to dealer in 10-packs; sold to consumer as each, Include all hose fittings and plungers necessary to convert from stockPD820010- SKU:
- PD820010
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- PRIMER KIT
- UNITS:
- KIT
- STYLE:
- KEIHIN
- RIDING STYLE:
- WATERCRAFT
- STYLE:
- TRIPLE CARBURETOR
$48.93 -
PARTS UNLIMITED Plunger Primer Kit 7000
PARTS UNLIMITED
$40.49Dash mount plunger comes complete with necessary hose and T-fittings for single and dual carb applications, Made in the U.S.A.7000- SKU:
- 7000
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BASE COLOR:
- BLACK
- RIDING STYLE:
- SNOW
- STYLE:
- SINGLE CARBURETOR
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- PLUNGER
- STYLE:
- DASH MOUNT
- TYPE:
- PRIMER KIT
- STYLE:
- DUAL CARBURETOR
- UNITS:
- KIT
$40.49Qty in Cart: 0Quantity:Price:$40.49Subtotal: -
PRO DESIGN Pro Flow Filter Kit - RZR900 PD 248
PRO DESIGN
$289.95High-Performance Air Intake System - Precision CNC-machined from high-quality billet material for durability. Features an O-ring seal ensuring easy and reliable installation. Enhances airflow with a flow-bench-designed venturi adapter. ...10112863- SKU:
- 10112863
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$289.95
