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
-
On Sale
MIKUNI Jet Needle J8-6DGY04-59
MIKUNI
MSRP: $10.50Now: $7.00Was: $10.50Fine-tuning your carburetor's mid-range fuel mixture requires precision—and the MIKUNI Jet Needle J8-6DGY04-59 delivers exactly that. If you're experiencing hesitation, bog, or inconsistent throttle...6DGY0459- SKU:
- 6DGY0459
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- MODEL:
- J8-6DGY04-59
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- TYPE:
- NEEDLE
MSRP: $10.50Now: $7.00Was: $10.50Qty in Cart: 0Quantity:Price:MSRP: $10.50Now: $7.00Was: $10.50Subtotal: -
MIKUNI Jet Needle J8-6DH02
MIKUNI
$10.50Precise mid-range fuel mixture control is essential for smooth power delivery and throttle response across your Mikuni carburetor's operating range. The MIKUNI Jet Needle J8-6DH02 directly influences...6DH2- SKU:
- 6DH2
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- MODEL:
- J8-6DH02
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$10.50 -
MIKUNI Jet Needle J8-6DH03
MIKUNI
$10.50If your Mikuni carburettor isn't delivering the fuel mixture you need in the mid-range throttle zone, a worn or incorrect jet needle will rob you of throttle response and overall performance. The...6DH3- SKU:
- 6DH3
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- J8-6DH03
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- OFF-ROAD
$10.50 -
MIKUNI Jet Needle J8-6DH04
MIKUNI
$10.50Fine-tuning your carburetor's mid-range fuel delivery is critical for responsive throttle control and consistent performance across the RPM band. The MIKUNI Jet Needle J8-6DH04 is a direct...6DH4- SKU:
- 6DH4
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- MODEL:
- J8-6DH04
- TYPE:
- NEEDLE
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$10.50 -
MIKUNI Jet Needle J8-6DH07
MIKUNI
$10.50Fine-tuning your carburetor's mid-range fuel mixture is critical to achieving consistent throttle response and reliable performance across the RPM band. The MIKUNI Jet Needle J8-6DH07 delivers...6DH7- SKU:
- 6DH7
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- MODEL:
- J8-6DH07
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$10.50 -
MIKUNI Jet Needle J8-6DH08
MIKUNI
$10.50Fine-tuning your carburetor's mid-range fuel delivery is critical for consistent throttle response and drivability, and a worn or incorrect jet needle is often the culprit behind hesitation or lean...6DH8- SKU:
- 6DH8
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- J8-6DH08
- TYPE:
- NEEDLE
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$10.50Qty in Cart: 0Quantity:Price:$10.50Subtotal: -
MIKUNI Mounting Flange I-VM28-200-1
MIKUNI
$35.70If you're running a spigot-type carburetor setup, a worn or damaged mounting flange will compromise airflow consistency and create vacuum leaks that tank performance. This MIKUNI flange restores...MVM28200- SKU:
- MVM28200
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- FLANGE INTAKE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- BORE SIZE METRIC:
- 28.00 MM
- TYPE:
- MOUNT ADAPTER
- UNITS:
- EACH
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- SNOW
$35.70Qty in Cart: 0Quantity:Price:$35.70Subtotal: -
MIKUNI Mounting Flange M-VM34-200K
MIKUNI
$35.70If you're running a spigot-type carburetor setup, a worn or damaged mounting flange can create vacuum leaks, poor idle quality, and unpredictable fuel delivery—all of which kill performance on the...MVM34200- SKU:
- MVM34200
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- BASE COLOR:
- BLACK
- BORE SIZE METRIC:
- 34.00 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- STREET
- TYPE:
- MOUNT ADAPTER
- PRODUCT NAME:
- FLANGE INTAKE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- RUBBER
$35.70 -
MIKUNI Mounting Flange M-VM36-200K
MIKUNI
$35.70If you're running a spigot-type carburetor setup, a worn or damaged mounting flange can introduce air leaks, inconsistent fueling, and performance loss. The MIKUNI Mounting Flange M-VM36-200K...MVM36200- SKU:
- MVM36200
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- BORE SIZE METRIC:
- 36.00 MM
- MATERIAL:
- RUBBER
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- BLACK
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- FLANGE INTAKE
- RIDING STYLE:
- STREET
- TYPE:
- MOUNT ADAPTER
$35.70Qty in Cart: 0Quantity:Price:$35.70Subtotal: -
MIKUNI Mounting Flange KHS-004
MIKUNI
$36.99If you're running a spigot-type carburetor setup, a quality mounting flange is non-negotiable—it's the foundation for proper fuel delivery and engine stability. The MIKUNI KHS-004 is a direct...MVM38200- SKU:
- MVM38200
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- MOUNT ADAPTER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- BORE SIZE METRIC:
- 38.00 MM
- MATERIAL:
- RUBBER
- RIDING STYLE:
- SNOW
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- FLANGE INTAKE
- UNITS:
- EACH
$36.99 -
MIKUNI Mounting Flange M-VM40-200K
MIKUNI
$35.70If you're running a spigot-type carburetor and dealing with mounting issues or a worn flange, this MIKUNI adapter is your direct solution. A quality mounting flange ensures proper carb alignment,...MVM40200- SKU:
- MVM40200
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- BORE SIZE METRIC:
- 40.00 MM
- MATERIAL:
- RUBBER
- RIDING STYLE:
- SNOW
- TYPE:
- MOUNT ADAPTER
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- FLANGE INTAKE
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$35.70Qty in Cart: 0Quantity:Price:$35.70Subtotal: -
MIKUNI Needle and Seat N149040-20
MIKUNI
$24.15The needle and seat assembly is the critical control point in your carburetor's fuel delivery system—when this wears, fuel flow becomes erratic and performance suffers. A genuine Mikuni replacement...N14904020- SKU:
- N14904020
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$24.15 -
MIKUNI Needle and Seat N149040-25
MIKUNI
$24.15The needle and seat assembly is the critical control point in your carburetor's fuel delivery system—precision tolerances here directly impact throttle response, fuel economy, and engine stability...N14904025- SKU:
- N14904025
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$24.15 -
MIKUNI Needle and Seat N149040-28
MIKUNI
$24.15The needle and seat assembly is a critical component in carburetor fuel metering—when it wears, you'll experience flooding, lean conditions, or inconsistent jetting across the RPM range. Genuine...N14904028- SKU:
- N14904028
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$24.15 -
MIKUNI Coupling Kit for Duals MK-BN/001
MIKUNI
$52.95Running dual Mikuni carburetors requires precision synchronization to deliver consistent fuel atomization across both units—any imbalance degrades throttle response and creates flat spots in your...MKBN001- SKU:
- MKBN001
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- JET KIT
- TYPE:
- CARBURETOR
- UNITS:
- KIT
- BASE COLOR:
- BLACK
- RIDING STYLE:
- WATERCRAFT
$52.95 -
MIKUNI Standard BN Carburetor Series Repair Kit MK-BN38/44
MIKUNI
$40.99A worn or deteriorating diaphragm can leave your Mikuni carburetor running lean, causing stumbling, hesitation, and unpredictable jetting. This repair kit restores proper fuel metering and...MKBN3844- SKU:
- MKBN3844
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- KIT
- PRODUCT NAME:
- JET KIT
- TYPE:
- CARBURETOR
$40.99Qty in Cart: 0Quantity:Price:$40.99Subtotal: -
MIKUNI Super BN Series Carburetor Rebuild Kit MK-BN38/44 SPR
MIKUNI
$85.95A MIKUNI Super BN Series carburetor demands precision tuning to maintain peak performance, and worn internal components directly compromise fuel atomization and throttle response. This complete...MKBN3844SPR- SKU:
- MKBN3844SPR
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- PRODUCT NAME:
- JET KIT
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- KIT
- TYPE:
- CARBURETOR
$85.95Qty in Cart: 0Quantity:Price:$85.95Subtotal: -
MIKUNI Super/HP Carburetor Series Needle Valve Kit MK-BN44 NV 2
MIKUNI
$25.99If you're running a high-performance carbureted engine, fuel delivery consistency directly impacts throttle response and peak power output. This needle valve kit eliminates pop-off inconsistencies...MKBN3844SPR2- SKU:
- MKBN3844SPR2
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- NEEDLE VALVE KIT
- RIDING STYLE:
- WATERCRAFT
- SPRING RATE METRIC:
- 80.00 G
- UNITS:
- KIT
$25.99 -
MIKUNI Power Jet Kit with Jets MK-406
MIKUNI
$26.99If you're running a VM-type Mikuni carburetor and want to unlock better throttle response and midrange performance, the MIKUNI Power Jet Kit with Jets MK-406 gives you the tuning capability to do it...VMPJK- SKU:
- VMPJK
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- JET KIT
- RIDING STYLE:
- ATV
$26.99 -
MIKUNI Needle Jet VM34/05-O-6
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance requires precision, and the MIKUNI Needle Jet VM34/05-O-6 delivers exactly that. This genuine Mikuni component allows you to dial in the critical...159O6- SKU:
- 159O6
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- JET SIZE:
- O-6
- MODEL:
- TYPE 159
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- FEATURES:
- FOR VM 30 MM - 36 MM SPIGOT
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$15.49
