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...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...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
$10.50Qty in Cart: 0Quantity:Price:$10.50Subtotal: -
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...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...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...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...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...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...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,...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...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...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...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...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
$24.95Qty in Cart: 0Quantity:Price:$24.95Subtotal: -
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...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...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...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...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...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...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...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:
