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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 Wing - CRF150R '07-'20 PW-20

    BOYESEN Power Wing - CRF150R '07-'20 PW-20

    BOYESEN

    $99.95
    Wing channel minimizes disturbance at needle jet without affecting jetting curve, Aerodynamic design maximizes velocity generation and power gain, Increases horsepower and torque in 2-stroke and 4-stroke, Precision fit ensures perfect alignment and easy...
    10500167
    SKU:
    10500167
    Availability:
    Ships Same Business Day
    Weight:
    0.18 LBS
    BASE COLOR:
    GOLD
    PRODUCT NAME:
    FUEL ATOMIZER
    COLOR/FINISH:
    GOLD
    MODEL:
    POWERWING
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $99.95
    Qty in Cart: 0
    Quantity:
    Price:
    $99.95
    Subtotal:
  • BOYESEN Radiator Valve - YZ250/X RAD-34J

    BOYESEN Radiator Valve - YZ250/X RAD-34J

    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...
    10080116
    SKU:
    10080116
    Availability:
    Ships Same Business Day
    Weight:
    1.06 LBS
    COLOR/FINISH:
    SILVER
    PRODUCT NAME:
    REED CAGE ASSEMBLY
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    MATERIAL:
    ALUMINUM
    MATERIAL:
    CARBON FIBER
    MODEL:
    RAD VALVE
    UNITS:
    EACH
    $179.95
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • BOYESEN Radiator Valve - YZ125 '05-'20 RAD-33J

    BOYESEN Radiator Valve - YZ125 '05-'20 RAD-33J

    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...
    10080115
    SKU:
    10080115
    Availability:
    Ships Same Business Day
    Weight:
    0.66 LBS
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    REED CAGE ASSEMBLY
    MATERIAL:
    CARBON FIBER
    MODEL:
    RAD VALVE
    UNITS:
    EACH
    TYPE:
    DUAL STAGE
    COLOR/FINISH:
    SILVER
    RIDING STYLE:
    OFF-ROAD
    $179.95
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • BOYESEN Radiator Valve - KX250 '05-'07 RAD-12J

    BOYESEN Radiator Valve - KX250 '05-'07 RAD-12J

    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...
    10080113
    SKU:
    10080113
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    REED CAGE ASSEMBLY
    MATERIAL:
    CARBON FIBER
    MODEL:
    RAD VALVE
    TYPE:
    DUAL STAGE
    UNITS:
    EACH
    COLOR/FINISH:
    SILVER
    RIDING STYLE:
    OFF-ROAD
    $179.95
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • BOYESEN Radiator Valve - CR250 '05-'07 RAD-02I

    BOYESEN Radiator Valve - CR250 '05-'07 RAD-02I

    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...
    10080112
    SKU:
    10080112
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    REED CAGE ASSEMBLY
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    UNITS:
    EACH
    MATERIAL:
    CARBON FIBER
    MODEL:
    RAD VALVE
    $179.95
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • BOYESEN Super Stock Reeds - Fiber - YZ250 SSF332

    BOYESEN Super Stock Reeds - Fiber - YZ250 SSF332

    BOYESEN

    $34.95
    Snowmobile Super Stock reeds are packaged as Cylinder sets. One set is required per cylinder, Last longer and better value than other stock or carbon reeds on the market, Carbon or fiber single-stage replacement reeds, Enhance performance at all rpm,...
    10080110
    SKU:
    10080110
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    REED PETAL
    MODEL:
    SUPER STOCK
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    FIBERGLASS
    UNITS:
    SET
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • BOYESEN Super Stock Reeds - Fiber - KX250 SSF212

    BOYESEN Super Stock Reeds - Fiber - KX250 SSF212

    BOYESEN

    $34.95
    Snowmobile Super Stock reeds are packaged as Cylinder sets. One set is required per cylinder, Last longer and better value than other stock or carbon reeds on the market, Carbon or fiber single-stage replacement reeds, Enhance performance at all rpm,...
    10080109
    SKU:
    10080109
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MODEL:
    SUPER STOCK
    PRODUCT NAME:
    REED PETAL
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    FIBERGLASS
    UNITS:
    SET
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • BOYESEN Super Stock Reeds - Fiber - CR250 SSF402

    BOYESEN Super Stock Reeds - Fiber - CR250 SSF402

    BOYESEN

    $34.95
    Snowmobile Super Stock reeds are packaged as Cylinder sets. One set is required per cylinder, Last longer and better value than other stock or carbon reeds on the market, Carbon or fiber single-stage replacement reeds, Enhance performance at all rpm,...
    10080108
    SKU:
    10080108
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    UNITS:
    SET
    MATERIAL:
    FIBERGLASS
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    SUPER STOCK
    PRODUCT NAME:
    REED PETAL
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • BOYESEN Super Stock Reeds - Fiber - CR125 SSF301

    BOYESEN Super Stock Reeds - Fiber - CR125 SSF301

    BOYESEN

    $34.95
    Snowmobile Super Stock reeds are packaged as Cylinder sets. One set is required per cylinder, Last longer and better value than other stock or carbon reeds on the market, Carbon or fiber single-stage replacement reeds, Enhance performance at all rpm,...
    10080107
    SKU:
    10080107
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    MODEL:
    SUPER STOCK
    MATERIAL:
    FIBERGLASS
    RIDING STYLE:
    OFF-ROAD
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • BOYESEN Super Stock Reeds - Carbon - YZ250 SSC332

    BOYESEN Super Stock Reeds - Carbon - YZ250 SSC332

    BOYESEN

    $50.95
    Snowmobile Super Stock reeds are packaged as Cylinder sets. One set is required per cylinder, Last longer and better value than other stock or carbon reeds on the market, Carbon or fiber single-stage replacement reeds, Enhance performance at all rpm,...
    10080106
    SKU:
    10080106
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MATERIAL:
    CARBON
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    SUPER STOCK
    Qty in Cart: 0
    Quantity:
    Price:
    $50.95
    Subtotal:
  • BOYESEN Super Stock Reeds - Carbon - KX250 SSC212

    BOYESEN Super Stock Reeds - Carbon - KX250 SSC212

    BOYESEN

    $50.95
    Snowmobile Super Stock reeds are packaged as Cylinder sets. One set is required per cylinder, Last longer and better value than other stock or carbon reeds on the market, Carbon or fiber single-stage replacement reeds, Enhance performance at all rpm,...
    10080105
    SKU:
    10080105
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MODEL:
    SUPER STOCK
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    SET
    MATERIAL:
    CARBON
    PRODUCT NAME:
    REED PETAL
    $50.95
    Qty in Cart: 0
    Quantity:
    Price:
    $50.95
    Subtotal:
  • On Sale
    BOYESEN Super Stock Reeds - Carbon - CR125 SSC301

    BOYESEN Super Stock Reeds - Carbon - CR125 SSC301

    BOYESEN

    MSRP: $50.95
    Now: $33.00
    Was: $50.95
    Snowmobile Super Stock reeds are packaged as Cylinder sets. One set is required per cylinder, Last longer and better value than other stock or carbon reeds on the market, Carbon or fiber single-stage replacement reeds, Enhance performance at all rpm,...
    10080103
    SKU:
    10080103
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    SET
    MATERIAL:
    CARBON
    MODEL:
    SUPER STOCK
    PRODUCT NAME:
    REED PETAL
    MSRP: $50.95
    Now: $33.00
    Was: $50.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $50.95
    Now: $33.00
    Was: $50.95
    Subtotal:
  • BOYESEN Pro Series Reed - YZ250 PRO-218

    BOYESEN Pro Series Reed - YZ250 PRO-218

    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...
    10080102
    SKU:
    10080102
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MODEL:
    PRO SERIES
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - YZ125 PRO-217

    BOYESEN Pro Series Reed - YZ125 PRO-217

    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...
    10080101
    SKU:
    10080101
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - KX250 PRO-216

    BOYESEN Pro Series Reed - KX250 PRO-216

    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...
    10080100
    SKU:
    10080100
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - CR250 PRO-215

    BOYESEN Pro Series Reed - CR250 PRO-215

    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...
    10080099
    SKU:
    10080099
    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
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - CR125 PRO-214

    BOYESEN Pro Series Reed - CR125 PRO-214

    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...
    10080098
    SKU:
    10080098
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MATERIAL:
    CARBON FIBER
    BASE COLOR:
    YELLOW
    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 Power Reeds - YZ250/X 6131

    BOYESEN Power Reeds - YZ250/X 6131

    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...
    10080097
    SKU:
    10080097
    Availability:
    Ships Same Business Day
    Weight:
    0.62 LBS
    BASE COLOR:
    YELLOW
    UNITS:
    SET
    PRODUCT NAME:
    REED PETAL
    MODEL:
    POWER REED
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    FIBERGLASS
    TYPE:
    DUAL STAGE
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • BOYESEN Power Reeds - YZ125 '05-'16 6130

    BOYESEN Power Reeds - YZ125 '05-'16 6130

    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...
    10080096
    SKU:
    10080096
    Availability:
    Ships Same Business Day
    Weight:
    0.62 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 - KX250 '05-'07 6129

    BOYESEN Power Reeds - KX250 '05-'07 6129

    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...
    10080095
    SKU:
    10080095
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MODEL:
    POWER REED
    RIDING STYLE:
    OFF-ROAD
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    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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