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Dirt Bike Air and Fuel

Dirt Bike Air and Fuel

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

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
  • BOYESEN Power Reeds - CR250 '05-'07 6128

    BOYESEN Power Reeds - CR250 '05-'07 6128

    BOYESEN

    $39.95
    Boyesen's® patented dual-stage design incorporates a specially shaped top reed and a ported bottom reed, The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs, The stiffer, bottom reed is ported to provide...
    10080094
    SKU:
    10080094
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    POWER REED
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • BOYESEN Power Reeds - CR125 '05-'07 6127

    BOYESEN Power Reeds - CR125 '05-'07 6127

    BOYESEN

    $39.95
    Boyesen's® patented dual-stage design incorporates a specially shaped top reed and a ported bottom reed, The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs, The stiffer, bottom reed is ported to provide...
    10080093
    SKU:
    10080093
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    MODEL:
    POWER REED
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    PRODUCT NAME:
    REED PETAL
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • BOYESEN Power Reeds - Polaris/Eton/Kasea 6108

    BOYESEN Power Reeds - Polaris/Eton/Kasea 6108

    BOYESEN

    $28.95
    Boyesen's® patented dual-stage design incorporates a specially shaped top reed and a ported bottom reed, The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs, The stiffer, bottom reed is ported to provide...
    10080092
    SKU:
    10080092
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MODEL:
    POWER REED
    PRODUCT NAME:
    REED PETAL
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    UNITS:
    SET
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    TYPE:
    DUAL STAGE
    $28.95
    Qty in Cart: 0
    Quantity:
    Price:
    $28.95
    Subtotal:
  • BOYESEN Power Reeds - Polini 6107

    BOYESEN Power Reeds - Polini 6107

    BOYESEN

    $28.95
    Boyesen's® patented dual-stage design incorporates a specially shaped top reed and a ported bottom reed, The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs, The stiffer, bottom reed is ported to provide...
    10080091
    SKU:
    10080091
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MODEL:
    POWER REED
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    FIBERGLASS
    BASE COLOR:
    YELLOW
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    PRODUCT NAME:
    REED PETAL
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $28.95
    Subtotal:
  • BOYESEN Pro Series Reed - RM250 '04-'08 PRO-210

    BOYESEN Pro Series Reed - RM250 '04-'08 PRO-210

    BOYESEN

    $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    10080051
    SKU:
    10080051
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BASE COLOR:
    YELLOW
    MODEL:
    PRO SERIES
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - RM125 '04-'08 PRO-208

    BOYESEN Pro Series Reed - RM125 '04-'08 PRO-208

    BOYESEN

    $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    10080050
    SKU:
    10080050
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    REED PETAL
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - KX250 '04 PRO-206

    BOYESEN Pro Series Reed - KX250 '04 PRO-206

    BOYESEN

    $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    10080049
    SKU:
    10080049
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - KX125 '04-'05 PRO-204

    BOYESEN Pro Series Reed - KX125 '04-'05 PRO-204

    BOYESEN

    $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    10080048
    SKU:
    10080048
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    REED PETAL
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - KX85/100 RM100 PRO-212

    BOYESEN Pro Series Reed - KX85/100 RM100 PRO-212

    BOYESEN

    $57.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    10080047
    SKU:
    10080047
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    MODEL:
    PRO SERIES
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    $57.95
    Qty in Cart: 0
    Quantity:
    Price:
    $57.95
    Subtotal:
  • BOYESEN Pro Series Reed - CR250 '04 PRO-200

    BOYESEN Pro Series Reed - CR250 '04 PRO-200

    BOYESEN

    $69.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    10080046
    SKU:
    10080046
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MATERIAL:
    CARBON FIBER
    BASE COLOR:
    YELLOW
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    REED PETAL
    $69.95
    Qty in Cart: 0
    Quantity:
    Price:
    $69.95
    Subtotal:
  • On Sale
    BOYESEN Pro Series Reed - CR125 '04 PRO-198

    BOYESEN Pro Series Reed - CR125 '04 PRO-198

    BOYESEN

    MSRP: $62.95
    Now: $40.00
    Was: $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    10080045
    SKU:
    10080045
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MATERIAL:
    CARBON FIBER
    PRODUCT NAME:
    REED PETAL
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MSRP: $62.95
    Now: $40.00
    Was: $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $62.95
    Now: $40.00
    Was: $62.95
    Subtotal:
  • BOYESEN Racing Reed - YZ125 '04 6119

    BOYESEN Racing Reed - YZ125 '04 6119

    BOYESEN

    $39.95
    Boyesen's® patented dual-stage design incorporates a specially shaped top reed and a ported bottom reed, The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs, The stiffer, bottom reed is ported to provide...
    10080043
    SKU:
    10080043
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MODEL:
    POWER REED
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    FIBERGLASS
    TYPE:
    DUAL STAGE
    BASE COLOR:
    YELLOW
    UNITS:
    SET
    PRODUCT NAME:
    REED PETAL
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • BOYESEN Racing Reed - RM250 '04-'08 6123

    BOYESEN Racing Reed - RM250 '04-'08 6123

    BOYESEN

    $39.95
    Boyesen's® patented dual-stage design incorporates a specially shaped top reed and a ported bottom reed, The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs, The stiffer, bottom reed is ported to provide...
    10080042
    SKU:
    10080042
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MODEL:
    POWER REED
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • BOYESEN Racing Reed - RM125 '04-'08 6122

    BOYESEN Racing Reed - RM125 '04-'08 6122

    BOYESEN

    $39.95
    Boyesen's® patented dual-stage design incorporates a specially shaped top reed and a ported bottom reed, The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs, The stiffer, bottom reed is ported to provide...
    10080041
    SKU:
    10080041
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MODEL:
    POWER REED
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • BOYESEN Racing Reed - KX125 '04-'08 6120

    BOYESEN Racing Reed - KX125 '04-'08 6120

    BOYESEN

    $39.95
    Boyesen's® patented dual-stage design incorporates a specially shaped top reed and a ported bottom reed, The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs, The stiffer, bottom reed is ported to provide...
    10080039
    SKU:
    10080039
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    REED PETAL
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    MODEL:
    POWER REED
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • BOYESEN Racing Reed - Suzuki/Kawasaki 6124

    BOYESEN Racing Reed - Suzuki/Kawasaki 6124

    BOYESEN

    $34.95
    Laboratory flow analysis proves Boyesen® dual-stage reeds out-perform standard reeds, They permit greater flow velocity over the entire range of operating pressures, Increased performance from start-up to top acceleration
    10080038
    SKU:
    10080038
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    UNITS:
    SET
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    TYPE:
    DUAL STAGE
    MODEL:
    POWER REED
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    REED PETAL
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • On Sale
    BOYESEN Racing Reed - CR250 '04 6118

    BOYESEN Racing Reed - CR250 '04 6118

    BOYESEN

    MSRP: $48.95
    Now: $31.00
    Was: $48.95
    Laboratory flow analysis proves Boyesen® dual-stage reeds out-perform standard reeds, They permit greater flow velocity over the entire range of operating pressures, Increased performance from start-up to top acceleration
    10080037
    SKU:
    10080037
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    FIBERGLASS
    PRODUCT NAME:
    REED PETAL
    BASE COLOR:
    YELLOW
    MODEL:
    POWER REED
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MSRP: $48.95
    Now: $31.00
    Was: $48.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $48.95
    Now: $31.00
    Was: $48.95
    Subtotal:
  • BOYESEN Racing Reed - CR125 '04 6117

    BOYESEN Racing Reed - CR125 '04 6117

    BOYESEN

    $39.95
    Laboratory flow analysis proves Boyesen® dual-stage reeds out-perform standard reeds, They permit greater flow velocity over the entire range of operating pressures, Increased performance from start-up to top acceleration
    10080036
    SKU:
    10080036
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    MODEL:
    POWER REED
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    REED PETAL
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • BOYESEN Radiator Valve - YZ125 '04 RAD-33I

    BOYESEN Radiator Valve - YZ125 '04 RAD-33I

    BOYESEN

    $179.95
    Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range, Specially-designed reed cage holds Boyesen's patented...
    10080035
    SKU:
    10080035
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    TYPE:
    DUAL STAGE
    UNITS:
    EACH
    MATERIAL:
    CARBON FIBER
    MODEL:
    RAD VALVE
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    REED CAGE ASSEMBLY
    COLOR/FINISH:
    SILVER
    RIDING STYLE:
    OFF-ROAD
    $179.95
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • BOYESEN Radiator Valve - RM250 '04-'08 RAD-24K

    BOYESEN Radiator Valve - RM250 '04-'08 RAD-24K

    BOYESEN

    $179.95
    Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range, Specially-designed reed cage holds Boyesen's patented...
    10080034
    SKU:
    10080034
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    MODEL:
    RAD VALVE
    TYPE:
    DUAL STAGE
    UNITS:
    EACH
    COLOR/FINISH:
    SILVER
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    REED CAGE ASSEMBLY
    MATERIAL:
    CARBON FIBER
    $179.95
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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