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 Needle Jet 990-793-003-Q-0
MIKUNI
$15.49Precise carburetor tuning separates a well-running engine from a finely-dialed machine, and needle jet selection is critical to controlling fuel delivery in the critical 1/4 to 3/4 throttle range where most driving occurs. The MIKUNI Needle Jet...166Q0- SKU:
- 166Q0
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- JET SIZE:
- Q-0
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- FEATURES:
- FOR VM38 MM SPIGOT
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- TYPE 166
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
$15.49Qty in Cart: 0Quantity:Price:$15.49Subtotal: -
MIKUNI Needle Jet 990-793-003-Q-2
MIKUNI
$15.49Precise fuel-air mixture tuning in the 1/4 to 3/4 throttle range is critical for carburetors that perform consistently across real-world riding conditions. The MIKUNI Needle Jet 990-793-003-Q-2 gives you direct control over this crucial midrange...166Q2- SKU:
- 166Q2
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- FEATURES:
- FOR VM38 MM SPIGOT
- MODEL:
- TYPE 166
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- UNITS:
- EACH
- JET SIZE:
- Q-2
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$15.49 -
MIKUNI Needle Jet 990-793-003-Q-6
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance requires precision, and the MIKUNI Needle Jet 990-793-003-Q-6 delivers exactly that. This genuine Mikuni component gives you direct control over fuel delivery in the critical 1/4 to 3/4 throttle...166Q6- SKU:
- 166Q6
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- FEATURES:
- FOR VM38 MM SPIGOT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- JET SIZE:
- Q-6
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- UNITS:
- EACH
- MODEL:
- TYPE 166
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- NEEDLE
$15.49 -
MIKUNI Needle Jet 990-793-003-Q-8
MIKUNI
$15.49Precise carburetor tuning separates a well-running engine from a championship-caliber build. The MIKUNI Needle Jet 990-793-003-Q-8 gives you direct control over fuel delivery in the critical 1/4 to 3/4 throttle range, where most real-world driving occurs...166Q8- SKU:
- 166Q8
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- FEATURES:
- FOR VM38 MM SPIGOT
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- BRASS
- MODEL:
- TYPE 166
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- NEEDLE
- UNITS:
- EACH
- JET SIZE:
- Q-8
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
$15.49 -
MIKUNI Needle Jet 990-793-003-R-0
MIKUNI
$15.49Precise carburetor tuning demands precision components, and the MIKUNI Needle Jet 990-793-003-R-0 delivers exactly that. This genuine Mikuni jet gives you repeatable control over your air-fuel mixture in the critical 1/4 to 3/4 throttle range—where most...166R0- SKU:
- 166R0
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- JET SIZE:
- R-0
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- JET
- RIDING STYLE:
- UTV
- TYPE:
- NEEDLE
- UNITS:
- EACH
- FEATURES:
- FOR VM38 MM SPIGOT
- MODEL:
- TYPE 166
- RIDING STYLE:
- SNOW
$15.49 -
MIKUNI Single Fuel Pump DF44-227
MIKUNI
$39.90If you're running a single-carb setup, fuel delivery consistency directly impacts throttle response and overall engine performance. The MIKUNI DF44-227 is purpose-built for this application, engineered in Japan to provide reliable, steady fuel pressure...DF44- SKU:
- DF44
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- RIDING STYLE:
- UTV
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- FUEL PUMP
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- WATERCRAFT
- STYLE:
- SINGLE CARBURETOR
$39.90Qty in Cart: 0Quantity:Price:$39.90Subtotal: -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-1025
MIKUNI
$5.20Precision fuel delivery starts at the pilot jet—the component that controls your engine's low-speed fueling and idle quality. The MIKUNI Super BN Series Pilot Jet delivers consistent atomization and metering across the entire idle-to-cruise range,...KN1006061025- SKU:
- KN1006061025
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 102.5
- PRODUCT NAME:
- JET
- TYPE:
- PILOT
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
$5.20 -
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:
