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
-
MOOSE RACING Air Filter - TTR225 '99-'04 2-80-12
MOOSE RACING
$26.95A quality air filter is your engine's first line of defense against contamination that reduces power and shortens component life. The MOOSE RACING Air Filter for TTR225 models uses dual-foam construction to trap large particles on the outer layer while...M7628012- SKU:
- M7628012
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BASE COLOR:
- RED
- UNITS:
- EACH
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$26.95 -
MOOSE RACING Air Filter - TTR 125 2-80-13
MOOSE RACING
$26.95A quality air filter is the first line of defense against contamination in your TTR 125's engine. The MOOSE RACING Air Filter uses a proven two-layer foam design that balances maximum airflow with superior particle capture, keeping your engine cleaner...M7628013- SKU:
- M7628013
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- BASE COLOR:
- YELLOW
- BASE COLOR:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- WHITE
- UNITS:
- EACH
- COLOR/FINISH:
- YELLOW
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$26.95 -
CV4 Radiator Cap - 2.0 bar CV715-31M
CV4
$44.95A radiator cap might seem like a minor component, but it's critical to your cooling system's performance—especially under high-load racing conditions. The CV4 Radiator Cap maintains precise blow-off pressure through premium spring wire construction,...19020035- SKU:
- 19020035
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- GRAY
- PRESSURE RATING METRIC:
- 2.0 BAR
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- NOT FOR HUSABERG, HUSQVARNA AND KTM
- BASE COLOR:
- GRAY
- PRODUCT NAME:
- RADIATOR CAP
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$44.95Qty in Cart: 0Quantity:Price:$44.95Subtotal: -
Samco Sport Red 3mm ID Vent Line for Carburetor Breather and Air Pipes 07060153
SAMCO SPORT
$24.95Carburetor breather systems and custom air lines demand a vent solution that won't collapse under vacuum or restrict flow. The Samco Sport Red 3mm ID Vent Line provides the reliability and flexibility you need for proper crankcase evacuation, radiator...07060153- SKU:
- 07060153
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- INSIDE DIAMETER METRIC:
- 3.0 MM
- LENGTH IMPERIAL:
- 10'
- MATERIAL:
- SILICONE
- TYPE:
- VENT
- COLOR/FINISH:
- RED
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- OUTSIDE DIAMETER METRIC:
- 7 MM
- PRODUCT NAME:
- TUBING
- APPLICATION:
- CARBURETED
- BASE COLOR:
- RED
- LENGTH METRIC:
- 305 CM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$24.95 -
Samco Sport Vent Line Red 5mm ID Carbureted Vehicles USA-VT5B-25WRD
SAMCO SPORT
$37.95Carburetor systems require reliable, flexible routing for breather and overflow lines—and cheap tubing degrades quickly under heat and vibration. The Samco Sport Vent Line delivers the durability and precise fitment you need for clean, trouble-free...07060161- SKU:
- 07060161
- Availability:
- Ships Same Business Day
- Weight:
- 0.59 LBS
- APPLICATION:
- CARBURETED
- COLOR/FINISH:
- RED
- LENGTH METRIC:
- 305 CM
- RIDING STYLE:
- STREET
- TYPE:
- VENT
- UNITS:
- EACH
- BASE COLOR:
- RED
- INSIDE DIAMETER METRIC:
- 5.0 MM
- PRODUCT NAME:
- TUBING
- RIDING STYLE:
- UTV
- LENGTH IMPERIAL:
- 10'
- MATERIAL:
- SILICONE
- OUTSIDE DIAMETER METRIC:
- 10 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$37.95Qty in Cart: 0Quantity:Price:$37.95Subtotal: -
MIKUNI VM Series Carburetor - 26mm VM26-8074
MIKUNI
$142.00The Mikuni VM26-8074 delivers precise fuel metering and responsive throttle control for small-displacement and mid-range engines where tuning flexibility matters. This round-slide design maximizes airflow efficiency while maintaining the adjustability...10020051- SKU:
- 10020051
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- PILOT JET:
- 60 (VM22/210)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- RIDING STYLE:
- STREET
- AIR JET:
- 0.5
- CARBURETOR SIZE METRIC:
- 26.00 MM
- COLOR/FINISH:
- SILVER
- NEEDLE VALVE:
- 2.5 (VM26/26)
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- FEATURES:
- CLAMP-ON TYPE MOUNTING
- MAIN JET:
- 190 (4/042)
- NEEDLE:
- 5F21
- NEEDLE JET:
- N-8 (182 SERIES)
- RIDING STYLE:
- ATV
- SLIDE CUTAWAY:
- 2.0 (VM28/56)
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 35
- COLOR/FINISH:
- NATURAL
$142.00 -
MIKUNI VM Series Carburetor - 28mm VM28-49
MIKUNI
$165.00The Mikuni VM28-49 delivers precise fuel metering and responsive throttle control for high-performance engines that demand reliability. Its round slide design maximizes intake flow while maintaining the fine adjustment capability that separates...10020052- SKU:
- 10020052
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- PILOT JET:
- 60 (VM22/210)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- SLIDE CUTAWAY:
- 2.5 (VM28/56)
- BASE COLOR:
- SILVER
- FEATURES:
- CLAMP-ON TYPE MOUNTING
- NEEDLE:
- 5F21
- NEEDLE JET:
- N-8 (169 SERIES)
- NEEDLE VALVE:
- 3.2 (VM26/26)
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 35
- AIR JET:
- 0.5
- CARBURETOR SIZE METRIC:
- 28.00 MM
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- NATURAL
- MAIN JET:
- 200 (4/042)
- UNITS:
- EACH
$165.00 -
MIKUNI VM Series Carburetor - 30mm VM30-83
MIKUNI
$165.00The Mikuni VM30-83 is a precision-engineered 30mm carburetor designed for riders and builders seeking reliable fuel delivery and responsive throttle control in high-performance applications. Its round slide configuration delivers superior flow...10020053- SKU:
- 10020053
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- SILVER
- FEATURES:
- CLAMP-ON TYPE MOUNTING
- MAIN JET:
- 250 (4/042)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- RIDING STYLE:
- OFF-ROAD
- SLIDE CUTAWAY:
- 2.5 (VM34/110)
- COLOR/FINISH:
- NATURAL
- NEEDLE VALVE:
- 3.3 (VM34/39)
- RIDING STYLE:
- UTV
- CARBURETOR SIZE METRIC:
- 30.00 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 40
- AIR JET:
- 2.0
- BASE COLOR:
- SILVER
- NEEDLE:
- 6F5
- NEEDLE JET:
- P-5 (159 SERIES)
- PILOT JET:
- 40 (VM22/210)
- UNITS:
- EACH
$165.00 -
MIKUNI Air Cut-Off Valve Assembly - Yamaha MK-403
MIKUNI
$48.99The OE plastic diaphragm cover on your Yamaha will eventually crack—it's not a matter of if, but when. This genuine Mikuni replacement assembly restores proper air cut-off valve function, preventing lean-running conditions and ensuring consistent...10030392- SKU:
- 10030392
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- VALVE
- TYPE:
- AIR CUT-OFF
- BASE COLOR:
- BLACK
- RIDING STYLE:
- UTV
$48.99Qty in Cart: 0Quantity:Price:$48.99Subtotal: -
MIKUNI Viton‚® Needle and Seat - 2.0 786-15005-2.0
MIKUNI
$24.15A worn or damaged needle and seat directly compromises fuel atomization and carburetor response, leading to inconsistent jetting and poor throttle control. This genuine Mikuni assembly restores precise fuel metering and ensures your carb performs at OEM...10070406- SKU:
- 10070406
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- FLOW RATE IMPERIAL:
- 2.00 GPH
- PRODUCT NAME:
- NEEDLE AND SEAT
- RIDING STYLE:
- SNOW
- UNITS:
- EACH
$24.15 -
MIKUNI Super BN Series Carburetor BN34-28-8010
MIKUNI
$329.95If your engine is running lean, surging, or struggling with cold starts, a worn or damaged carburetor is often the culprit. The MIKUNI Super BN Series delivers consistent fuel atomization and precise air-fuel mixture control, restoring reliable...BN34288010- SKU:
- BN34288010
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- CARBURETOR
- BASE COLOR:
- BLACK
- CARBURETOR SIZE METRIC:
- 34.00 MM
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- WATERCRAFT
$329.95 -
MIKUNI Super BN Carburetor Series Needle Valve Assembly 786-35015-2.5
MIKUNI
$24.15A properly functioning needle valve assembly is critical to carburetor fuel delivery precision—this genuine Mikuni component ensures consistent atomization and metering across throttle positions. If your Super BN or BNI carburetor is running lean, rich,...7863501525- SKU:
- 7863501525
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
$24.15 -
MIKUNI Needle Valve Assembly 786-46001-1.5
MIKUNI
$24.15The needle and seat assembly is critical to precise fuel metering in your carburettor—a worn or damaged unit directly compromises throttle response, fuel economy, and engine reliability. Genuine Mikuni assemblies maintain the exacting tolerances required...7864600115- SKU:
- 7864600115
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- THREAD DIAMETER METRIC:
- 10.00 MM
- THREAD LENGTH METRIC:
- 7.00 MM
- UNITS:
- EACH
- RIDING STYLE:
- ATV
- HEAD TYPE:
- PUSH-IN
- JET SIZE:
- 1.5
- PRODUCT NAME:
- NEEDLE AND SEAT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$24.15 -
MIKUNI Needle and Seat 786-46001-1.8
MIKUNI
$24.15A properly functioning needle and seat assembly is critical for precise fuel delivery and carburetor performance. The Mikuni 786-46001-1.8 delivers the OEM reliability you need to maintain consistent jetting and prevent lean-running conditions. Whether...7864600118- SKU:
- 7864600118
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
$24.15 -
MIKUNI Needle and Seat 786-46001-2.0
MIKUNI
$24.15A worn or damaged needle and seat directly compromises fuel atomization and carburetor response, leading to poor throttle control and inconsistent jetting across RPM ranges. The Mikuni 786-46001-2.0 is a genuine OEM assembly engineered to restore precise...7864600120- SKU:
- 7864600120
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
$24.15 -
MIKUNI Jet Needle J8-7F06
MIKUNI
$10.50Fine-tuning your carburetor's mid-range fuel mixture requires precision, and the MIKUNI Jet Needle J8-7F06 delivers exactly that. This OEM-spec component directly controls fuel atomization during partial throttle operation—the RPM band where most street...7F6- SKU:
- 7F6
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- MODEL:
- J8-7F06
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
$10.50 -
MIKUNI Jet Needle J8-7F07
MIKUNI
$10.50The MIKUNI Jet Needle J8-7F07 is essential for fine-tuning your carburetor's fuel mixture in the critical mid-range throttle band, where most real-world riding happens. Proper needle selection directly impacts throttle response, fuel economy, and engine...7F7- SKU:
- 7F7
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- J8-7F07
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$10.50 -
MIKUNI Jet Needle J8-5DP07
MIKUNI
$10.50Precision fuel metering in the mid-range throttle zone is critical for consistent performance and drivability across varying load conditions. The MIKUNI Jet Needle J8-5DP07 delivers the exact fuel mixture control your carburetor demands, ensuring smooth...5DP7- SKU:
- 5DP7
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- NEEDLE
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MODEL:
- J8-5DP07
$10.50 -
MIKUNI Jet Needle J8-5FP17
MIKUNI
$10.50Precise fuel metering in the mid-range throttle position is critical for consistent engine performance, and the MIKUNI Jet Needle J8-5FP17 delivers exactly that. Whether you're tuning a stock Mikuni carburetor or optimizing a high-performance setup, this...5FP17- SKU:
- 5FP17
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- NEEDLE
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MODEL:
- J8-5FP17
$10.50 -
MIKUNI Jet Needle J8-5L01
MIKUNI
$10.50Precise mid-range fuel delivery is critical for responsive throttle control and consistent performance across the RPM band. The MIKUNI Jet Needle J8-5L01 fine-tunes your carburetor's fuel mixture during the transition between idle and wide-open throttle,...5L1- SKU:
- 5L1
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- MODEL:
- J8-5L01
- RIDING STYLE:
- OFF-ROAD
$10.50
