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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
  • MIKUNI Main Jet #200 - 4-Pack 4/042-200

    MIKUNI Main Jet #200 - 4-Pack 4/042-200

    MIKUNI

    $14.56
    A properly sized main jet is critical to carburetor performance—too rich or lean, and you'll lose power, damage your engine, or struggle with throttle response. The MIKUNI #200 main jet gives you the precision fuel metering your carb demands, whether...
    KM4042200
    SKU:
    KM4042200
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    OVERALL DIAMETER:
    6,00 MM (0,24')
    OVERALL DIAMETER METRIC:
    6.00 MM
    OVERALL LENGTH IMPERIAL:
    0.47'
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    UTV
    TYPE:
    MAIN
    FEATURES:
    FOR VM CARBURETORS
    OVERALL DIAMETER IMPERIAL:
    0.24'
    RIDING STYLE:
    STREET
    HEAD TYPE:
    HEX HEAD
    MATERIAL:
    BRASS
    OVERALL LENGTH:
    12 MM (0,47')
    OVERALL LENGTH METRIC:
    12 MM
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    SNOW
    UNITS:
    4 PACK
    JET SIZE:
    200
    RIDING STYLE:
    ATV
    $14.56
    Qty in Cart: 0
    Quantity:
    Price:
    $14.56
    Subtotal:
  • MIKUNI Main Jet #210 - 4-Pack 4/042-210

    MIKUNI Main Jet #210 - 4-Pack 4/042-210

    MIKUNI

    $5.20
    If your Mikuni carb is running too lean or you're chasing that perfect air-fuel ratio after modifications, a properly sized main jet is non-negotiable. This #210 jet delivers the fuel curve needed for consistent mid-range performance and throttle...
    KM4042210
    SKU:
    KM4042210
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    OVERALL DIAMETER IMPERIAL:
    0.24'
    OVERALL LENGTH METRIC:
    12 MM
    UNITS:
    4 PACK
    FEATURES:
    FOR VM CARBURETORS
    JET SIZE:
    210
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    TYPE:
    MAIN
    HEAD TYPE:
    HEX HEAD
    OVERALL DIAMETER METRIC:
    6.00 MM
    OVERALL LENGTH:
    12 MM (0,47')
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    SNOW
    MATERIAL:
    BRASS
    OVERALL DIAMETER:
    6,00 MM (0,24')
    OVERALL LENGTH IMPERIAL:
    0.47'
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    UTV
    $5.20
    Qty in Cart: 0
    Quantity:
    Price:
    $5.20
    Subtotal:
  • MIKUNI Main Jet #230 - 4-Pack 4/042-230

    MIKUNI Main Jet #230 - 4-Pack 4/042-230

    MIKUNI

    $5.20
    Proper jetting is the foundation of carburetor tuning—get it wrong and you're leaving power on the table or risking lean-condition damage. The MIKUNI Main Jet #230 is the direct replacement for worn jets or a critical component when optimizing your carb...
    KM4042230
    SKU:
    KM4042230
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    HEAD TYPE:
    HEX HEAD
    MATERIAL:
    BRASS
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    FEATURES:
    FOR VM CARBURETORS
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    TYPE:
    MAIN
    JET SIZE:
    230
    OVERALL DIAMETER:
    6,00 MM (0,24')
    OVERALL DIAMETER METRIC:
    6.00 MM
    OVERALL LENGTH:
    12 MM (0,47')
    OVERALL LENGTH IMPERIAL:
    0.47'
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    OVERALL DIAMETER IMPERIAL:
    0.24'
    OVERALL LENGTH METRIC:
    12 MM
    RIDING STYLE:
    SNOW
    UNITS:
    4 PACK
    $5.20
    Qty in Cart: 0
    Quantity:
    Price:
    $5.20
    Subtotal:
  • MIKUNI Main Jet #300 - 4-Pack 4/042-300

    MIKUNI Main Jet #300 - 4-Pack 4/042-300

    MIKUNI

    $14.56
    Precise jetting is non-negotiable for consistent carburetor performance and throttle response. The MIKUNI #300 main jet delivers the correct fuel-air mixture for engines running these carburetors, eliminating lean-running conditions and hesitation...
    KM4042300
    SKU:
    KM4042300
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    HEAD TYPE:
    HEX HEAD
    OVERALL LENGTH:
    12 MM (0,47')
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    FOR VM CARBURETORS
    OVERALL DIAMETER:
    6,00 MM (0,24')
    OVERALL DIAMETER IMPERIAL:
    0.24'
    OVERALL LENGTH IMPERIAL:
    0.47'
    RIDING STYLE:
    UTV
    JET SIZE:
    300
    MATERIAL:
    BRASS
    OVERALL LENGTH METRIC:
    12 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    4 PACK
    OVERALL DIAMETER METRIC:
    6.00 MM
    PRODUCT NAME:
    JET
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    TYPE:
    MAIN
    $14.56
    Qty in Cart: 0
    Quantity:
    Price:
    $14.56
    Subtotal:
  • K&L SUPPLY Economy Carburetor Repair Kit - Suzuki 18-4916

    K&L SUPPLY Economy Carburetor Repair Kit - Suzuki 18-4916

    K&L SUPPLY

    $34.95
    A carburetor that's running rich, leaking fuel, or delivering inconsistent air-fuel mixture will tank your bike's performance and fuel economy. This K&L economy rebuild kit gives you everything needed to restore your Suzuki carb to OE specifications...
    10030420
    SKU:
    10030420
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    ATV
    MATERIAL:
    RUBBER
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    CARBURETOR
    MODEL:
    ECONOMY
    UNITS:
    KIT
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • K&L SUPPLY Economy Carburetor Repair Kit - Suzuki 18-4935

    K&L SUPPLY Economy Carburetor Repair Kit - Suzuki 18-4935

    K&L SUPPLY

    $35.95
    A carburetor that's running rough, leaking, or delivering inconsistent fuel mixture is costing you performance and reliability. This K&L SUPPLY economy repair kit gives you all the gaskets, O-rings, and components needed to restore your OE Suzuki...
    10030421
    SKU:
    10030421
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MATERIAL:
    RUBBER
    PRODUCT NAME:
    REPAIR KIT
    MODEL:
    ECONOMY
    RIDING STYLE:
    ATV
    TYPE:
    CARBURETOR
    UNITS:
    KIT
    $35.95
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • K&L SUPPLY Economy Carburetor Repair Kit -  Yamaha 18-9390

    K&L SUPPLY Economy Carburetor Repair Kit - Yamaha 18-9390

    K&L SUPPLY

    $23.95
    A carburetor that's running lean, surging, or hesitating under load is a carburetor that needs attention. This K&L Supply economy rebuild kit gives you the gaskets, O-rings, and jets necessary to restore your Yamaha carb to factory specifications without...
    10030426
    SKU:
    10030426
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MATERIAL:
    RUBBER
    PRODUCT NAME:
    REPAIR KIT
    RIDING STYLE:
    UTV
    TYPE:
    CARBURETOR
    MODEL:
    ECONOMY
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $23.95
    Subtotal:
  • MOOSE UTILITY Fuel Injector with Pigtail - Polaris 100-5266-PU

    MOOSE UTILITY Fuel Injector with Pigtail - Polaris 100-5266-PU

    MOOSE UTILITY

    $54.95
    A fuel injector is the critical component that meters precise fuel delivery into your engine's combustion chamber—when it fails or underperforms, you lose efficiency, throttle response, and reliability. The MOOSE UTILITY Fuel Injector with Pigtail is...
    10220258
    SKU:
    10220258
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    FUEL INJECTOR
    RIDING STYLE:
    UTV
    Qty in Cart: 0
    Quantity:
    Price:
    $54.95
    Subtotal:
  • SHINDY Carburetor Repair Kit - TRX450R '06-'09 03-050

    SHINDY Carburetor Repair Kit - TRX450R '06-'09 03-050

    SHINDY

    $42.95
    Your TRX450R carburetor demands precision fuel delivery to maintain peak performance across varying riding conditions. This complete SHINDY rebuild kit supplies every critical component—from award-winning float valves to properly sized jets—to restore...
    10031012
    SKU:
    10031012
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    ATV
    BASE COLOR:
    BLACK
    PRODUCT NAME:
    REPAIR KIT
    COLOR/FINISH:
    BLACK
    TYPE:
    CARBURETOR
    UNITS:
    KIT
    $42.95
    Qty in Cart: 0
    Quantity:
    Price:
    $42.95
    Subtotal:
  • SHINDY Carburetor Repair Kit - Honda 350 03-053

    SHINDY Carburetor Repair Kit - Honda 350 03-053

    SHINDY

    $37.95
    If your Honda 350 carburetor is running rich, lean, or simply not responding like it should, a complete rebuild with quality components is the most cost-effective way to restore precise fuel delivery and stable idle characteristics. This kit eliminates...
    10031015
    SKU:
    10031015
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    TYPE:
    CARBURETOR
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    BASE COLOR:
    BLACK
    PRODUCT NAME:
    REPAIR KIT
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • SHINDY Carburetor Repair Kit - Honda 500 03-055

    SHINDY Carburetor Repair Kit - Honda 500 03-055

    SHINDY

    $37.95
    A carburetor that's out of tune will rob your Honda 500 of responsiveness and reliability—whether you're racing or logging trail hours. This complete SHINDY rebuild kit gives you OEM-quality components engineered to restore your carb to factory...
    10031017
    SKU:
    10031017
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    CARBURETOR
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    BASE COLOR:
    BLACK
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • SHINDY Carburetor Kit - KLF300 '89-'95 03-104

    SHINDY Carburetor Kit - KLF300 '89-'95 03-104

    SHINDY

    $22.95
    If your KLF300 carburetor is running rough, hesitating, or struggling with fuel delivery, a complete rebuild kit is your most cost-effective path back to reliable performance. SHINDY's OEM-quality components restore your carb to factory specifications...
    10031022
    SKU:
    10031022
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    COLOR/FINISH:
    BLACK
    TYPE:
    CARBURETOR
    UNITS:
    KIT
    RIDING STYLE:
    ATV
    PRODUCT NAME:
    CONVERSION KIT
    BASE COLOR:
    BLACK
    $22.95
    Qty in Cart: 0
    Quantity:
    Price:
    $22.95
    Subtotal:
  • SHINDY Carburetor Kit - KLF300 4x4 03-105

    SHINDY Carburetor Kit - KLF300 4x4 03-105

    SHINDY

    $22.95
    If your KLF300 is running rough, hesitating, or struggling to start, a carburetor rebuild with quality components is often the fastest fix. The SHINDY Carburetor Kit supplies everything needed to restore your OEM carb to factory performance...
    10031023
    SKU:
    10031023
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    COLOR/FINISH:
    BLACK
    TYPE:
    CARBURETOR
    PRODUCT NAME:
    CONVERSION KIT
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    BASE COLOR:
    BLACK
    $22.95
    Qty in Cart: 0
    Quantity:
    Price:
    $22.95
    Subtotal:
  • SHINDY Carburetor Kit - KLF400 '93-'95 03-107

    SHINDY Carburetor Kit - KLF400 '93-'95 03-107

    SHINDY

    $18.95
    If your KLF400 carburetor is running rough, hesitating on acceleration, or struggling with fuel delivery, a complete rebuild is often the most cost-effective solution. The SHINDY Carburetor Kit gives you OEM-quality components—float valves, jets,...
    10031025
    SKU:
    10031025
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    COLOR/FINISH:
    BLACK
    UNITS:
    KIT
    PRODUCT NAME:
    CONVERSION KIT
    TYPE:
    CARBURETOR
    BASE COLOR:
    BLACK
    RIDING STYLE:
    ATV
    $18.95
    Qty in Cart: 0
    Quantity:
    Price:
    $18.95
    Subtotal:
  • SHINDY Carburetor Kit - KVF300 '99-'02 03-109

    SHINDY Carburetor Kit - KVF300 '99-'02 03-109

    SHINDY

    $24.95
    Your KVF300 carburetor needs proper rejuvenation to deliver consistent fuel delivery and smooth idle characteristics—factory carbs degrade over time, especially when exposed to ethanol-blended fuel and seasonal storage. This complete SHINDY rebuild kit...
    10031027
    SKU:
    10031027
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    TYPE:
    CARBURETOR
    BASE COLOR:
    BLACK
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    PRODUCT NAME:
    CONVERSION KIT
    $24.95
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • SHINDY Carburetor Kit - KVF400 '99-'02 03-110

    SHINDY Carburetor Kit - KVF400 '99-'02 03-110

    SHINDY

    $21.95
    If your KVF400 carburetor is running lean, surging, or struggling with fuel quality issues, a complete rebuild kit is essential to restore precise fuel delivery and engine response. SHINDY's OEM-equivalent kit gives you award-winning float valves and a...
    10031028
    SKU:
    10031028
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    COLOR/FINISH:
    BLACK
    TYPE:
    CARBURETOR
    UNITS:
    KIT
    RIDING STYLE:
    ATV
    PRODUCT NAME:
    CONVERSION KIT
    BASE COLOR:
    BLACK
    $21.95
    Qty in Cart: 0
    Quantity:
    Price:
    $21.95
    Subtotal:
  • SHINDY Carburetor Repair Kit - KLF250 03-111

    SHINDY Carburetor Repair Kit - KLF250 03-111

    SHINDY

    $35.95
    A worn or poorly performing carburetor can tank your KLF250's throttle response and fuel economy. This complete SHINDY rebuild kit restores your OEM carb to factory specifications with precision-engineered components designed to handle ethanol and...
    10031029
    SKU:
    10031029
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    CARBURETOR
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    BASE COLOR:
    BLACK
    $35.95
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • SHINDY Carburetor Kit - LT80 '87-'98 03-210

    SHINDY Carburetor Kit - LT80 '87-'98 03-210

    SHINDY

    $21.95
    If your LT80 carb is running rich, hesitating on throttle, or just feels sluggish, a complete rebuild with quality internals will restore crisp response and reliable starting. This SHINDY kit gives you OEM-equivalent components engineered to handle...
    10031047
    SKU:
    10031047
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    ATV
    BASE COLOR:
    BLACK
    COLOR/FINISH:
    BLACK
    TYPE:
    CARBURETOR
    UNITS:
    KIT
    PRODUCT NAME:
    CONVERSION KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $21.95
    Subtotal:
  • SHINDY Carburetor Repair Kit - Suzuki 03-218

    SHINDY Carburetor Repair Kit - Suzuki 03-218

    SHINDY

    $32.95
    A carburetor that's out of tune is leaving horsepower on the table and creating cold-start headaches. The SHINDY 03-218 Repair Kit gives you everything needed to restore your Suzuki carburetor to factory specifications—or dial in performance beyond it...
    10031055
    SKU:
    10031055
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    TYPE:
    CARBURETOR
    BASE COLOR:
    BLACK
    PRODUCT NAME:
    REPAIR KIT
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    $32.95
    Qty in Cart: 0
    Quantity:
    Price:
    $32.95
    Subtotal:
  • SHINDY Carburetor Repair Kit - Suzuki 03-219

    SHINDY Carburetor Repair Kit - Suzuki 03-219

    SHINDY

    $40.95
    A carburetor running lean or rich will kill your bike's performance and reliability—and rebuilding with OEM components is the most cost-effective way to restore precision fuel delivery. This SHINDY kit includes everything needed to return your Suzuki's...
    10031056
    SKU:
    10031056
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    TYPE:
    CARBURETOR
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    BASE COLOR:
    BLACK
    PRODUCT NAME:
    REPAIR KIT
    $40.95
    Qty in Cart: 0
    Quantity:
    Price:
    $40.95
    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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