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...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...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...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
$14.55Qty in Cart: 0Quantity:Price:$14.55Subtotal: -
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...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...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...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...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...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...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...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...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...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...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...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...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...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...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...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...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...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
$5.20Qty in Cart: 0Quantity:Price:$5.20Subtotal:
