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 N100606-120
MIKUNI
$14.55Fine-tuning your carburetor's low-speed fuel delivery is critical for smooth idle quality, crisp throttle response, and consistent performance across varying engine loads. A worn or incorrect pilot...KN100606120- SKU:
- KN100606120
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 120
- PRODUCT NAME:
- JET
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- PILOT
$14.55 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-70
MIKUNI
$5.20Precise fuel metering at low throttle positions is essential for smooth idle quality and responsive low-end throttle transitions. A worn or incorrectly sized pilot jet creates a lean or rich...KN10060670- SKU:
- KN10060670
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- PRODUCT NAME:
- JET
- TYPE:
- PILOT
- UNITS:
- 4 PACK
- JET SIZE:
- 70
$5.20 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-725
MIKUNI
$5.20Precise pilot jet sizing is critical for dialing in your carburetor's low-speed fuel delivery and off-idle response. The MIKUNI Super BN Series Pilot Jet delivers consistent atomization across the...KN100606725- SKU:
- KN100606725
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- MIKUNI
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- WATERCRAFT
- JET SIZE:
- 72.5
- TYPE:
- PILOT
$5.20Qty in Cart: 0Quantity:Price:$5.20Subtotal: -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-75
MIKUNI
$5.20Precise fuel metering at idle and low-throttle conditions directly affects engine response, fuel efficiency, and cold-start performance. The MIKUNI Super BN Series Pilot Jet delivers the calibrated...KN10060675- SKU:
- KN10060675
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- JET SIZE:
- 75
- PRODUCT NAME:
- JET
- TYPE:
- PILOT
- UNITS:
- 4 PACK
$5.20Qty in Cart: 0Quantity:Price:$5.20Subtotal: -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-775
MIKUNI
$5.20Precise fuel metering at idle and low-throttle conditions directly impacts engine response, throttle transition quality, and cold-start performance. The MIKUNI Super BN Series Pilot Jet delivers the...KN100606775- SKU:
- KN100606775
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- WATERCRAFT
- JET SIZE:
- 77.5
- MODEL:
- MIKUNI
- TYPE:
- PILOT
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
$5.20 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-80
MIKUNI
$5.20Proper pilot jet sizing is fundamental to carburetor tuning—it directly controls fuel delivery at idle and low-throttle conditions, where engine responsiveness and fuel efficiency are established. If...KN10060680- SKU:
- KN10060680
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- PILOT
- JET SIZE:
- 80
- PRODUCT NAME:
- JET
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
$5.20 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-825
MIKUNI
$5.20Precise fuel metering at idle and low-load conditions is essential for clean throttle response and stable engine behavior across varying operating temperatures. The MIKUNI Super BN Series Pilot Jet...KN100606825- SKU:
- KN100606825
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 82.5
- PRODUCT NAME:
- JET
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- PILOT
$5.20Qty in Cart: 0Quantity:Price:$5.20Subtotal: -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-85
MIKUNI
$5.20Carburetor tuning requires precision, and the MIKUNI Super BN Series Pilot Jet delivers the exact fuel metering your engine needs at idle and low-rpm operation. A worn or incorrectly sized pilot jet...KN10060685- SKU:
- KN10060685
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- PILOT
- JET SIZE:
- 85
$5.20Qty in Cart: 0Quantity:Price:$5.20Subtotal: -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-875
MIKUNI
$5.20Precise fuel metering at idle and low-RPM cruising is critical to engine response and fuel efficiency. The MIKUNI Super BN Series Pilot Jet delivers accurate atomization in the pilot circuit,...KN100606875- SKU:
- KN100606875
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- WATERCRAFT
- JET SIZE:
- 87.5
- UNITS:
- 4 PACK
- TYPE:
- PILOT
$5.20 -
MIKUNI Needle Jet VM38/41-P-8
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance requires precision, and the MIKUNI Needle Jet VM38/41-P-8 delivers exactly that. This genuine Mikuni component allows you to dial in your air-fuel...247P8- SKU:
- 247P8
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- JET SIZE:
- P-8
- MODEL:
- TYPE 247
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- TYPE:
- NEEDLE
- UNITS:
- EACH
- FEATURES:
- FOR OE YAMAHA
- RIDING STYLE:
- STREET
$15.49 -
MIKUNI Needle Jet VM38/41-Q-8
MIKUNI
$15.49Precise carburetor tuning demands precision components, and the MIKUNI Needle Jet VM38/41-Q-8 is engineered for exactly that. This genuine Mikuni needle jet gives you granular control over fuel...247Q8- SKU:
- 247Q8
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- JET SIZE:
- Q-8
- MODEL:
- TYPE 247
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- FEATURES:
- FOR OE YAMAHA
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- NEEDLE
$15.49 -
On Sale
MIKUNI Needle Jet VM38/41-R-4
MIKUNI
MSRP: $14.95Now: $10.00Was: $14.95Fine-tuning your carburetor's mid-range performance requires precision, and the MIKUNI Needle Jet VM38/41-R-4 delivers exactly that. This genuine Mikuni component gives you direct control over fuel...247R4- SKU:
- 247R4
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MODEL:
- TYPE 247
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- JET SIZE:
- R-4
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- FEATURES:
- FOR OE YAMAHA
- TYPE:
- NEEDLE
MSRP: $14.95Now: $10.00Was: $14.95Qty in Cart: 0Quantity:Price:MSRP: $14.95Now: $10.00Was: $14.95Subtotal: -
MIKUNI Needle Jet VM44/10-AA-0
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance requires precise control over fuel delivery in the 1/4 to 3/4 throttle range—exactly where needle jets make their critical impact. The MIKUNI...224AA0- SKU:
- 224AA0
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- JET SIZE:
- AA-0
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- MODEL:
- TYPE 224
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- NEEDLE
- RIDING STYLE:
- OFF-ROAD
- FEATURES:
- FOR VM 40 MM - 44 MM SPIGOT
- UNITS:
- EACH
$15.49 -
MIKUNI Needle Jet 785-24001-O-0
MIKUNI
$15.49Precise mid-range throttle response separates a well-tuned carbureted engine from one that's merely adequate. The MIKUNI Needle Jet 785-24001-O-0 gives you direct control over fuel delivery in the...389O0- SKU:
- 389O0
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- FEATURES:
- FOR TM 32 MM - 33 MM SPIGOT
- JET SIZE:
- O-0
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- NEEDLE
- UNITS:
- EACH
- MATERIAL:
- BRASS
- MODEL:
- TYPE 389
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
$15.49Qty in Cart: 0Quantity:Price:$15.49Subtotal: -
MIKUNI Needle Jet 785-24001-Q-8
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance demands precision, and a genuine Mikuni needle jet is non-negotiable if you want consistent throttle response across the 1/4 to 3/4 opening range...389Q8- SKU:
- 389Q8
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- JET SIZE:
- Q-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 Carburetor BN40I-38-24
MIKUNI
$485.95A carburetor is the heart of your fuel delivery system, and worn or mismatched units compromise throttle response, fuel economy, and overall engine performance. The MIKUNI BN40I-38-24 restores...10020032- SKU:
- 10020032
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- PRODUCT NAME:
- CARBURETOR
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- CARBURETOR SIZE METRIC:
- 38.00 MM
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- WATERCRAFT
$485.95 -
MIKUNI Carburetor BN44-40-8067
MIKUNI
$331.95High-performance watercraft demand a carburetor engineered for precision tuning and reliability under extreme conditions. The MIKUNI BN44-40-8067 delivers externally adjustable metering and pop-off...10020033- SKU:
- 10020033
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- CARBURETOR SIZE METRIC:
- 46.00 MM
- UNITS:
- EACH
- PRODUCT NAME:
- CARBURETOR
- RIDING STYLE:
- WATERCRAFT
- FEATURES:
- NO BUTTERFLY CHOKE
$331.95Qty in Cart: 0Quantity:Price:$331.95Subtotal: -
MIKUNI Main Jet #280 - 4-Pack 4/042-280
MIKUNI
$14.56Precise jetting is the foundation of carburetor tuning—get it wrong and you're leaving power on the table or running dangerously lean. The MIKUNI Main Jet #280 is engineered for applications that...KM4042280- SKU:
- KM4042280
- 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:
- 280
- 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
$14.56 -
MIKUNI Main Jet #310 - 4-Pack 4/042-310
MIKUNI
$14.56Carburetor tuning demands precision, and a worn or incorrect main jet directly impacts fuel delivery at full throttle—compromising both power and reliability. This genuine Mikuni #310 jet pack gives...KM4042310- SKU:
- KM4042310
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
- FEATURES:
- FOR VM CARBURETORS
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL DIAMETER METRIC:
- 6.00 MM
- OVERALL LENGTH:
- 12 MM (0,47')
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- HEAD TYPE:
- HEX HEAD
- JET SIZE:
- 310
- MATERIAL:
- BRASS
$14.56 -
MIKUNI Main Jet #320 - 4-Pack 4/042-320
MIKUNI
$14.56Fine-tuning your carburetor's fuel delivery is critical for achieving optimal engine performance, whether you're dialing in a race engine or restoring a classic machine. The MIKUNI #320 main jet...KM4042320- SKU:
- KM4042320
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD TYPE:
- HEX HEAD
- MATERIAL:
- BRASS
- FEATURES:
- FOR VM CARBURETORS
- JET SIZE:
- 320
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL DIAMETER METRIC:
- 6.00 MM
- OVERALL LENGTH:
- 12 MM (0,47')
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
$14.56
