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 Super BN Series Pilot Jet - 4-Pack N100606-105
MIKUNI
$5.20Precise fuel atomization at idle and low-throttle conditions is critical for carbureted engines—especially in racing applications where every millisecond of response matters. A worn or incorrect pilot jet starves your engine of fuel during off-throttle...KN100606105- SKU:
- KN100606105
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 105
- PRODUCT NAME:
- JET
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- PILOT
$5.20 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-1075
MIKUNI
$5.20Precise pilot jet tuning is foundational to dialing in carburetor performance across the full throttle range—especially at idle and low-speed transitions where most riding happens. The MIKUNI Super BN Series Pilot Jet gives you the exact needle-seat...KN1006061075- SKU:
- KN1006061075
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 107.5
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- TYPE:
- PILOT
$5.20 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-115
MIKUNI
$14.55A properly sized pilot jet is fundamental to carburetor tuning—it directly controls fuel delivery at idle and low-throttle operation, where engine responsiveness and smooth transitions begin. If your bike hesitates off the line, idles rough, or stumbles...KN100606115- SKU:
- KN100606115
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 115
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- PILOT
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-1175
MIKUNI
$14.55Precise fuel metering at idle and low-throttle conditions is critical for carburetor performance, and a worn or incorrect pilot jet directly impacts cold starts, throttle response, and fuel economy. The MIKUNI Super BN Series Pilot Jet delivers...KN1006061175- SKU:
- KN1006061175
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- PILOT
- UNITS:
- 4 PACK
- JET SIZE:
- 117.5
$14.55 -
MIKUNI Main Jet - #142.5 - 4-Pack N102221-1425
MIKUNI
$14.55Precise fuel atomization directly impacts throttle response, engine efficiency, and overall drivability—making main jet selection critical for carburetor tuning. This OEM-spec #142.5 jet delivers the exact fuel metering your CV or Power Jet carburetor...KN1022211425- SKU:
- KN1022211425
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 142.5
- RIDING STYLE:
- ATV
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- WATERCRAFT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Needle Jet VM38/41-R-2
MIKUNI
$15.49Fine-tuning your carburetor's fuel delivery at part-throttle operations is critical for drivability and throttle response, and the needle jet is your primary control point. This genuine Mikuni needle jet allows precise mid-range jetting adjustments...247R2- SKU:
- 247R2
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MODEL:
- TYPE 247
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- FEATURES:
- FOR OE YAMAHA
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- JET SIZE:
- R-2
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
$15.49 -
MIKUNI Needle Jet VM44/10-AA-5
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance requires precision, and the MIKUNI Needle Jet VM44/10-AA-5 delivers exactly that. This genuine Mikuni component gives you direct control over fuel delivery between 1/4 and 3/4 throttle opening—the range...224AA5- SKU:
- 224AA5
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- TYPE 224
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- TYPE:
- NEEDLE
- FEATURES:
- FOR VM 40 MM - 44 MM SPIGOT
- JET SIZE:
- AA-5
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$15.49 -
MIKUNI Needle Jet VM44/10-Z-5
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance requires precision—and the MIKUNI Needle Jet VM44/10-Z-5 delivers exactly that. This genuine Mikuni component gives you direct control over fuel-air mixture from 1/4 to 3/4 throttle, the range where...224Z5- SKU:
- 224Z5
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- JET SIZE:
- Z-5
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- MODEL:
- TYPE 224
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- NEEDLE
- UNITS:
- EACH
- FEATURES:
- FOR VM 40 MM - 44 MM SPIGOT
$15.49 -
MIKUNI Needle Jet 785-24001-P-4
MIKUNI
$15.49Precise mid-range throttle response is critical for competitive racing and spirited driving, and a worn or incorrectly sized needle jet will create flat spots and unpredictable fueling across the 1/4 to 3/4 throttle range. The MIKUNI Needle Jet...389P4- SKU:
- 389P4
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- JET SIZE:
- P-4
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- FEATURES:
- FOR TM 32 MM - 33 MM SPIGOT
- MATERIAL:
- BRASS
- MODEL:
- TYPE 389
- RIDING STYLE:
- OFF-ROAD
$15.49Qty in Cart: 0Quantity:Price:$15.49Subtotal: -
MIKUNI Needle Jet 785-24001-P-8
MIKUNI
$15.49Precise mid-range tuning is essential for carburetors that perform consistently across varying throttle positions. The MIKUNI Needle Jet 785-24001-P-8 gives you direct control over fuel delivery in the critical 1/4 to 3/4 throttle range—the zone where...389P8- SKU:
- 389P8
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- JET SIZE:
- P-8
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- FEATURES:
- FOR TM 32 MM - 33 MM SPIGOT
- MATERIAL:
- BRASS
- MODEL:
- TYPE 389
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$15.49 -
MIKUNI Needle Jet 785-24001-Q-0
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance requires precision components engineered for exact air-fuel ratios. The MIKUNI Needle Jet 785-24001-Q-0 is a genuine Mikuni part that gives you direct control over throttle response in the critical 1/4...389Q0- SKU:
- 389Q0
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- UNITS:
- EACH
- JET SIZE:
- Q-0
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- NEEDLE
- FEATURES:
- FOR TM 32 MM - 33 MM SPIGOT
- MATERIAL:
- BRASS
- MODEL:
- TYPE 389
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$15.49 -
MIKUNI Needle Jet 785-24001-Q-2
MIKUNI
$15.49Precise mid-range fuel delivery is the foundation of a well-tuned carburetor, and the MIKUNI Needle Jet 785-24001-Q-2 gives you direct control over that critical zone. Whether you're chasing optimal throttle response or compensating for altitude and...389Q2- SKU:
- 389Q2
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- TYPE:
- NEEDLE
- JET SIZE:
- Q-2
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- FEATURES:
- FOR TM 32 MM - 33 MM SPIGOT
- MODEL:
- TYPE 389
$15.49 -
MIKUNI Needle Jet 785-24001-Q-4
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance requires precision components that respond to your specific jetting needs. The MIKUNI Needle Jet 785-24001-Q-4 gives you direct control over fuel delivery in the critical 1/4 to 3/4 throttle range—where...389Q4- SKU:
- 389Q4
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- FEATURES:
- FOR TM 32 MM - 33 MM SPIGOT
- MATERIAL:
- BRASS
- MODEL:
- TYPE 389
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- JET SIZE:
- Q-4
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
$15.49Qty in Cart: 0Quantity:Price:$15.49Subtotal: -
MIKUNI Main Jet #170 - 4-Pack 4/042-170
MIKUNI
$14.56Precise fuel delivery is the foundation of carburetor tuning, and a properly sized main jet directly impacts your engine's power output and throttle response across the RPM band. The MIKUNI #170 main jet gives you the fuel metering you need for peak...KM4042170- SKU:
- KM4042170
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ATV
- 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
- FEATURES:
- FOR VM CARBURETORS
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- JET SIZE:
- 170
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL DIAMETER METRIC:
- 6.00 MM
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
$14.56 -
MIKUNI Main Jet #220 - 4-Pack 4/042-220
MIKUNI
$14.56Precision fuel metering is critical to carburetor performance, and a worn or incorrectly sized main jet directly impacts throttle response, fuel economy, and engine reliability. The MIKUNI Main Jet #220 delivers consistent atomization across the...KM4042220- SKU:
- KM4042220
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- RIDING STYLE:
- ATV
- 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
- FEATURES:
- FOR VM CARBURETORS
- JET SIZE:
- 220
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL DIAMETER METRIC:
- 6.00 MM
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
$14.56 -
MIKUNI Main Jet #240 - 4-Pack 4/042-240
MIKUNI
$5.20Precise fuel metering is fundamental to carburetor tuning, and a worn or incorrect main jet directly impacts throttle response, fuel economy, and peak power output. This OEM-spec Mikuni #240 jet delivers the exact fuel flow your engine demands across the...KM4042240- SKU:
- KM4042240
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 240
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH METRIC:
- 12 MM
- UNITS:
- 4 PACK
- FEATURES:
- FOR VM CARBURETORS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- OVERALL DIAMETER METRIC:
- 6.00 MM
- OVERALL LENGTH:
- 12 MM (0,47')
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- HEAD TYPE:
- HEX HEAD
- MATERIAL:
- BRASS
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$5.20 -
MIKUNI Main Jet #250 - 4-Pack 4/042-250
MIKUNI
$5.20Running the wrong main jet size kills performance and creates drivability issues—lean stumbling, flat spots, or overly rich running that wastes fuel and fouls plugs. This Mikuni #250 main jet is a direct OEM replacement engineered to restore proper...KM4042250- SKU:
- KM4042250
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OVERALL LENGTH:
- 12 MM (0,47')
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- HEAD TYPE:
- HEX HEAD
- MATERIAL:
- BRASS
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- 4 PACK
- JET SIZE:
- 250
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH IMPERIAL:
- 0.47'
- FEATURES:
- FOR VM CARBURETORS
- OVERALL DIAMETER METRIC:
- 6.00 MM
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
$5.20 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-100
MIKUNI
$5.20Precision fuel delivery at idle and low-throttle conditions is critical for carbureted engines—lean mixture and hesitation during cold starts or low-speed cruising can indicate a worn or incorrect pilot jet. The MIKUNI Super BN Series Pilot Jet delivers...KN100606100- SKU:
- KN100606100
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- PILOT
- PRODUCT NAME:
- JET
- RIDING STYLE:
- WATERCRAFT
- JET SIZE:
- 100
- MODEL:
- MIKUNI
- UNITS:
- 4 PACK
$5.20Qty in Cart: 0Quantity:Price:$5.20Subtotal: -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-110
MIKUNI
$14.55Precise fuel metering at idle and low-throttle conditions is critical to engine response and smooth operation—and that's where pilot jets make their mark. The MIKUNI Super BN Series Pilot Jet delivers consistent atomization and fuel delivery across a...KN100606110- SKU:
- KN100606110
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- JET
- MODEL:
- MIKUNI
- TYPE:
- PILOT
- UNITS:
- 4 PACK
- JET SIZE:
- 110
- RIDING STYLE:
- WATERCRAFT
$14.55 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N1003606-1125
MIKUNI
$5.20Fine-tuning your carburetor's idle circuit is critical for consistent cold starts, smooth off-throttle response, and reliable low-RPM performance. The MIKUNI Super BN Series Pilot Jet delivers precision fuel metering in the pilot circuit, ensuring your...KN1006061125- SKU:
- KN1006061125
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- MIKUNI
- JET SIZE:
- 112.5
- RIDING STYLE:
- WATERCRAFT
- PRODUCT NAME:
- JET
- TYPE:
- PILOT
- UNITS:
- 4 PACK
$5.20
