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
-
MIKUNI Jet Needle J8-6EJ12-59
MIKUNI
$10.50Precision fuel mixture control at mid-range throttle positions is essential for consistent carburetor performance, and OEM replacements can be difficult to source. The MIKUNI Jet Needle J8-6EJ12-59 restores factory-spec tuning for compatible Mikuni VM...6EJ1259- SKU:
- 6EJ1259
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- NEEDLE
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- MODEL:
- J8-6EJ12-59
$10.50Qty in Cart: 0Quantity:Price:$10.50Subtotal: -
MIKUNI Jet Needle J8-6EJ12-60
MIKUNI
$10.50Fine-tuning your carburetor's mid-range fuel mixture requires precision, and the MIKUNI Jet Needle J8-6EJ12-60 delivers exactly that. Whether you're dialing in a race engine or optimizing a custom build, this OEM-spec needle ensures consistent fuel...6EJ1260- SKU:
- 6EJ1260
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- NEEDLE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- J8-6EJ12-60
- UNITS:
- EACH
$10.50 -
MIKUNI Jet Needle J8-6F15
MIKUNI
$10.50Precision fuel mixture control in the mid-range throttle band is essential for responsive acceleration and smooth power delivery. The MIKUNI Jet Needle J8-6F15 is engineered to fine-tune your carburetor's performance characteristics, ensuring optimal...6F15- SKU:
- 6F15
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- NEEDLE
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- J8-6F15
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
$10.50 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-625
MIKUNI
$5.20Precision fuel delivery starts with the pilot jet, and the MIKUNI Super BN Series delivers the metering accuracy your engine needs at low throttle positions and idle. A properly-sized pilot jet eliminates stumbling, hesitation, and rich-running...KN100606625- SKU:
- KN100606625
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- MIKUNI
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- WATERCRAFT
- JET SIZE:
- 62.5
- TYPE:
- PILOT
$5.20 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-65
MIKUNI
$5.20Precision fuel delivery starts with the right pilot jet—the MIKUNI Super BN Series ensures accurate low-speed throttle response and consistent idle quality across varying ambient conditions. If you're tuning a carbureted engine for reliability and...KN10060665- SKU:
- KN10060665
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 65
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- TYPE:
- PILOT
$5.20 -
MIKUNI Main Jet - #102.5 - 4-Pack N102221-1025
MIKUNI
$14.55Precise fuel metering is critical to carburetor performance, and the right main jet size directly impacts throttle response, fuel economy, and engine reliability. This MIKUNI #102.5 main jet is engineered to deliver accurate fuel flow for CV and Power...KN1022211025- SKU:
- KN1022211025
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- JET SIZE:
- 102.5
$14.55 -
MIKUNI Main Jet - #105 - 4-Pack N102221-105
MIKUNI
$14.55If your CV or Power Jet carburetor is running rich or fouling plugs, a properly sized main jet is the foundation of clean, efficient combustion. The MIKUNI #105 main jet delivers the precise fuel metering your engine needs for optimal performance across...KN102221105- SKU:
- KN102221105
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- WATERCRAFT
- JET SIZE:
- 105
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Main Jet - #107.5 - 4-Pack N102221-1075
MIKUNI
$5.20If you're tuning a carbureted engine and need precise fuel delivery, a quality main jet is non-negotiable—it directly controls your air-fuel ratio under load and dictates whether your engine runs lean or rich. The MIKUNI #107.5 main jet is the OE...KN1022211075- SKU:
- KN1022211075
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- JET SIZE:
- 107.5
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
$5.20 -
MIKUNI Main Jet - #115 - 4-Pack N102221-115
MIKUNI
$14.55Fine-tuning your carburetor's fuel delivery is critical for achieving optimal power output and throttle response. The MIKUNI #115 main jet directly controls mid-range and full-throttle fueling, making it essential for riders and racers who demand...KN102221115- SKU:
- KN102221115
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 115
- MODEL:
- MIKUNI
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
$14.55 -
MIKUNI Main Jet - #120 - 4-Pack N102221-120
MIKUNI
$14.55Fine-tuning your carburetor's fuel delivery is essential for achieving optimal air-fuel ratio and consistent performance across your RPM range. The MIKUNI #120 Main Jet directly controls mid-range and full-throttle fueling, making it a critical component...KN102221120- SKU:
- KN102221120
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- WATERCRAFT
- JET SIZE:
- 120
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
$14.55 -
MIKUNI Main Jet - #135 - 4-Pack N102221-135
MIKUNI
$14.55If your carburettor is running too lean or you're experiencing hesitation during acceleration, a main jet swap is often the quickest solution. The MIKUNI #135 main jet is a direct replacement for OE CV and Power Jet carburetors, giving you precise fuel...KN102221135- SKU:
- KN102221135
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- JET SIZE:
- 135
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- MATERIAL:
- BRASS
- MODEL:
- MIKUNI
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- WATERCRAFT
$14.55 -
CV4 Radiator Cap - 2.0 bar - KTM CV715-31MK
CV4
$44.95Maintaining optimal coolant pressure is critical for preventing boil-over and ensuring efficient heat dissipation from your cylinder head—especially under sustained high-RPM operation. The CV4's 2.0 bar pressure rating increases your coolant's boil...19030003- SKU:
- 19030003
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- COLOR/FINISH:
- GRAY
- PRESSURE RATING METRIC:
- 2.0 BAR
- PRODUCT NAME:
- RADIATOR CAP
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BASE COLOR:
- GRAY
- STYLE:
- 15 AND EARLIER HUSABERG, HUSQVARNA AND KTM
$44.95Qty in Cart: 0Quantity:Price:$44.95Subtotal: -
CV4 Vent Tubing - Red - 4mm SFSVT4-3R
CV4
$24.95Carburetor vent lines, radiator overflow tubes, and oil cooler connections demand reliable tubing that won't degrade under heat or repeated temperature cycling. The CV4 Vent Tubing delivers pure silicone construction rated to 420°F, ensuring your engine...07060097- SKU:
- 07060097
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- INSIDE DIAMETER METRIC:
- 4.0 MM
- LENGTH IMPERIAL:
- 9.8'
- TYPE:
- VENT
- BASE COLOR:
- RED
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- INSIDE DIAMETER:
- 4,0 MM
- PRODUCT NAME:
- TUBING
- COLOR/FINISH:
- RED
- MATERIAL:
- SILICONE RUBBER
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$24.95 -
CV4 Vent Tubing - Yellow - 4mm SFSVT4-3Y
CV4
$24.95Reliable vent tubing is critical for proper engine breathing and overflow management—cheap tubing degrades under heat and fails at the worst time. The CV4 Vent Tubing handles high-temperature applications up to 420°F with pure silicone construction,...07060098- SKU:
- 07060098
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- BASE COLOR:
- YELLOW
- INSIDE DIAMETER:
- 4,0 MM
- PRODUCT NAME:
- TUBING
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- COLOR/FINISH:
- YELLOW
- INSIDE DIAMETER METRIC:
- 4.0 MM
- LENGTH IMPERIAL:
- 9.8'
- MATERIAL:
- SILICONE RUBBER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VENT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$24.95Qty in Cart: 0Quantity:Price:$24.95Subtotal: -
Samco Sport Vent Line Blue 4mm ID Carbureted ATV 10ft USA-VT4B-2W-BL
SAMCO SPORT
$25.95Carbureted ATVs and custom builds demand reliable vent lines that won't crack, harden, or fail under temperature swings. Samco Sport's premium silicone tubing handles overflow, breather, and emission air routing without the risk of pressure buildup or...07060156- SKU:
- 07060156
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- APPLICATION:
- CARBURETED
- RIDING STYLE:
- ATV
- MATERIAL:
- SILICONE
- OUTSIDE DIAMETER METRIC:
- 8 MM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLUE
- INSIDE DIAMETER METRIC:
- 4.0 MM
- LENGTH IMPERIAL:
- 10'
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- BASE COLOR:
- BLUE
- LENGTH METRIC:
- 305 CM
- PRODUCT NAME:
- TUBING
- TYPE:
- VENT
- UNITS:
- EACH
$25.95 -
Samco Sport Vent Line Red 4mm ID for 2023 Kawasaki ZX-4RR USA-VT4B-2W-RD
SAMCO SPORT
$25.95Vent line integrity directly impacts engine breathing and system reliability—degraded or stock hoses can fail under thermal cycling and chemical exposure. The Samco Sport silicone vent line delivers the heat resistance and flexibility needed for...07060157- SKU:
- 07060157
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- BASE COLOR:
- RED
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- INSIDE DIAMETER METRIC:
- 4.0 MM
- LENGTH IMPERIAL:
- 10'
- MATERIAL:
- SILICONE
- OUTSIDE DIAMETER METRIC:
- 8 MM
- RIDING STYLE:
- STREET
- APPLICATION:
- CARBURETED
- COLOR/FINISH:
- RED
- LENGTH METRIC:
- 305 CM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PRODUCT NAME:
- TUBING
- TYPE:
- VENT
$25.95 -
WSM Keihin High-Speed Jet 006-7130
WSM
$2.17If you're running a Keihin CDK 2 carburetor on your watercraft, jet sizing directly impacts throttle response, fuel delivery consistency, and overall engine performance across the RPM band. The WSM Keihin High-Speed Jet 006-7130 is engineered to precise...0067130- SKU:
- 0067130
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- MODEL:
- KEIHIN
- JET SIZE:
- 130
- TYPE:
- MAIN
- RIDING STYLE:
- WATERCRAFT
- PRODUCT NAME:
- JET
- UNITS:
- EACH
$2.17Qty in Cart: 0Quantity:Price:$2.17Subtotal: -
WSM Keihin High-Speed Jet 006-7132
WSM
$2.17The WSM Keihin High-Speed Jet 006-7132 is engineered for precise fuel atomization in high-RPM conditions, delivering consistent jetting performance when your watercraft demands maximum throttle response. This OEM-specification component ensures your...0067132- SKU:
- 0067132
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MATERIAL:
- BRASS
- TYPE:
- MAIN
- UNITS:
- EACH
- JET SIZE:
- 132
- RIDING STYLE:
- WATERCRAFT
- MODEL:
- KEIHIN
- PRODUCT NAME:
- JET
$2.17Qty in Cart: 0Quantity:Price:$2.17Subtotal: -
WSM Keihin High-Speed Jet 006-7138
WSM
$2.17If you're running a Keihin CDK 2 carb on your watercraft and need precise fuel delivery at high RPM, the WSM Keihin High-Speed Jet 006-7138 is essential for maintaining optimal performance across your entire power band. This OEM-equivalent jet ensures...0067138- SKU:
- 0067138
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- MAIN
- MATERIAL:
- BRASS
- JET SIZE:
- 138
- MODEL:
- KEIHIN
- PRODUCT NAME:
- JET
- UNITS:
- EACH
- RIDING STYLE:
- WATERCRAFT
$2.17Qty in Cart: 0Quantity:Price:$2.17Subtotal: -
WSM Keihin High-Speed Jet 006-7142
WSM
$2.17Fine-tuning your watercraft's fuel delivery requires precision jet sizing matched to your specific engine modifications and operating conditions. The WSM Keihin High-Speed Jet 006-7142 ensures optimal carburetor calibration for peak performance and...0067142- SKU:
- 0067142
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- TYPE:
- MAIN
- UNITS:
- EACH
- JET SIZE:
- 142
- MATERIAL:
- BRASS
- RIDING STYLE:
- WATERCRAFT
- MODEL:
- KEIHIN
- PRODUCT NAME:
- JET
$2.17Qty in Cart: 0Quantity:Price:$2.17Subtotal:
