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 Jet Needle J8-6FJ40
MIKUNI
$10.50Precise mid-range fuel mixture control directly impacts throttle response and drivability across the RPM band where you spend most of your time. The MIKUNI Jet Needle J8-6FJ40 is engineered for...6FJ40- SKU:
- 6FJ40
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- NEEDLE
- MODEL:
- J8-6FJ40
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$10.50 -
MIKUNI Jet Needle J8-6FJ41
MIKUNI
$10.50Fine-tuning your carb's mid-range fuel delivery is critical for consistent throttle response and smooth power transitions. The MIKUNI J8-6FJ41 jet needle is engineered to optimize fuel mixture in...6FJ41- SKU:
- 6FJ41
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- J8-6FJ41
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- NEEDLE
- PRODUCT NAME:
- JET
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$10.50Qty in Cart: 0Quantity:Price:$10.50Subtotal: -
MIKUNI Jet Needle J8-6FL14
MIKUNI
$10.50Precise mid-range fuel delivery is essential for consistent carburetor performance across varying throttle positions, and the MIKUNI Jet Needle J8-6FL14 is engineered to dial in that critical sweet...6FL14- SKU:
- 6FL14
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- J8-6FL14
- RIDING STYLE:
- SNOW
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- RIDING STYLE:
- STREET
- TYPE:
- NEEDLE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$10.50 -
MIKUNI Carburetor Rebuild Kit - BN44I Yamaha MK-BN44I-YAM
MIKUNI
$77.95A carburetor left in storage or running on old fuel will develop varnish buildup and seal deterioration that kills performance and fuel economy. This MIKUNI rebuild kit supplies all the gaskets,...10060284- SKU:
- 10060284
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- FEATURES:
- FOR 44 MM OR 46 MM I-SERIES CARBURETORS
- PRODUCT NAME:
- JET KIT
- TYPE:
- CARBURETOR
- UNITS:
- KIT
- RIDING STYLE:
- WATERCRAFT
$77.95 -
MIKUNI Jet Needle J8-6N01
MIKUNI
$10.50Precise mid-range fueling is the foundation of responsive carburetor tuning, and the MIKUNI Jet Needle J8-6N01 delivers exactly that control. If your Mikuni VM carb feels flat or hesitant between...6N1- SKU:
- 6N1
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MODEL:
- J8-6N01
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- NEEDLE
$10.50 -
MIKUNI Jet Needle J8-4J13
MIKUNI
$10.50Precise fuel mixture control in the mid-range throttle position is critical to carburetor performance, and the MIKUNI Jet Needle J8-4J13 delivers exactly that. This OEM-spec needle maintains the...4J13- SKU:
- 4J13
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- MODEL:
- J8-4J13
- RIDING STYLE:
- STREET
- TYPE:
- NEEDLE
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$10.50Qty in Cart: 0Quantity:Price:$10.50Subtotal: -
MIKUNI Super/HP Carburetor Series Needle Valve Kit MK-BN44 NV 1
MIKUNI
$25.99If you're running a carbureted high-performance engine, fuel delivery consistency directly impacts throttle response and peak power output. This MIKUNI needle valve kit eliminates pop-off issues that...MKBN3844SPRN- SKU:
- MKBN3844SPRN
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- KIT
- PRODUCT NAME:
- NEEDLE VALVE KIT
- SPRING RATE METRIC:
- 65.00 G
$25.99Qty in Cart: 0Quantity:Price:$25.99Subtotal: -
MIKUNI Air Jet #1.2 - 4-Pack BS30/97-1.2
MIKUNI
$14.55Precision fuel-air mixture tuning requires the right air jet, and these OEM Mikuni jets give you the control to dial in your carburetor's performance across varying conditions. Whether you're chasing...KBS309712- SKU:
- KBS309712
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- COLOR/FINISH:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- TYPE:
- AIR
- UNITS:
- 4 PACK
- BASE COLOR:
- BRASS
- JET SIZE:
- 1.2
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
$14.55 -
MIKUNI Air Jet #1.5 - 4-Pack BS30/97-1.5
MIKUNI
$14.55Precise fuel-air mixture tuning is the foundation of carburetor performance, and the MIKUNI Air Jet #1.5 gives you direct control over that critical balance. Whether you're chasing peak horsepower on...KBS309715- SKU:
- KBS309715
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 1.5
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- BASE COLOR:
- BRASS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AIR
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Air Jet #2.0 - 4-Pack BS30/97-2.0
MIKUNI
$5.20Carburetor tuning demands precision, and air jets are where the real work happens. This 4-pack of Mikuni air jets gives you the flexibility to dial in your fuel-air mixture across different riding...KBS309720- SKU:
- KBS309720
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- BASE COLOR:
- BRASS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BRASS
- JET SIZE:
- 2
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- TYPE:
- AIR
- UNITS:
- 4 PACK
$5.20 -
MIKUNI Main Jet #100 - 4-Pack 4/042-100
MIKUNI
$5.20If your Mikuni carburetor is running lean or rich, a proper main jet swap is the fastest way to dial in your air-fuel mixture without replacing the entire carb. This 4-pack of OEM-equivalent #100...KM4042100- SKU:
- KM4042100
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- FEATURES:
- FOR VM CARBURETORS
- OVERALL DIAMETER METRIC:
- 6.00 MM
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- MATERIAL:
- BRASS
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- 4 PACK
- JET SIZE:
- 100
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- UTV
- HEAD TYPE:
- HEX HEAD
- OVERALL LENGTH:
- 12 MM (0,47')
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$5.20 -
MIKUNI Main Jet #140 - 4-Pack 4/042-140
MIKUNI
$14.56Precise jetting is the foundation of carburetor tuning—get it wrong, and you're leaving power on the table or risking a lean-running engine. The MIKUNI Main Jet #140 is the direct replacement for...KM4042140- SKU:
- KM4042140
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH METRIC:
- 12 MM
- UNITS:
- 4 PACK
- OVERALL DIAMETER METRIC:
- 6.00 MM
- OVERALL LENGTH:
- 12 MM (0,47')
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- FEATURES:
- FOR VM CARBURETORS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- HEAD TYPE:
- HEX HEAD
- JET SIZE:
- 140
- MATERIAL:
- BRASS
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$14.56 -
MIKUNI Main Jet - #145 - 4-Pack N102221-145
MIKUNI
$14.55Fine-tuning your carburetor's fuel delivery is critical for optimal engine performance, and jet selection directly impacts throttle response, fuel economy, and overall drivability. The MIKUNI #145...KN102221145- SKU:
- KN102221145
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 145
- MATERIAL:
- BRASS
- MODEL:
- MIKUNI
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- JET
- TYPE:
- MAIN
- UNITS:
- 4 PACK
$14.55Qty in Cart: 0Quantity:Price:$14.55Subtotal: -
MIKUNI Main Jet - #200 - 4-Pack N102221-200
MIKUNI
$14.55If you're tuning a Mikuni carb for optimal fuel delivery and engine response, jet selection directly impacts how your engine performs across the RPM band. The #200 main jet is a critical component...KN102221200- SKU:
- KN102221200
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 200
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
$14.55 -
MIKUNI Main Jet - #80 - 4-Pack N102221-80
MIKUNI
$14.55If you're tuning a CV or Power Jet Mikuni carburetor, jet selection directly impacts your air-fuel ratio and throttle response. The #80 main jet from Mikuni is the OE replacement specification for...KN10222180- SKU:
- KN10222180
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 80
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- WATERCRAFT
$14.55Qty in Cart: 0Quantity:Price:$14.55Subtotal: -
MIKUNI Main Jet - #82.5 - 4-Pack N102221-825
MIKUNI
$14.55Proper jetting is fundamental to carburetor tuning—get it wrong, and you're leaving power on the table or risking engine damage. The MIKUNI #82.5 main jet delivers precise fuel metering for mid-range...KN102221825- SKU:
- KN102221825
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- JET SIZE:
- 82.5
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- MATERIAL:
- BRASS
- MODEL:
- MIKUNI
- RIDING STYLE:
- OFF-ROAD
$14.55 -
MIKUNI Main Jet - #85 - 4-Pack N102221-85
MIKUNI
$14.55If you're tuning a CV or Power Jet carburetor, jet selection directly impacts fuel delivery, throttle response, and overall engine performance. The MIKUNI #85 Main Jet is a precision-engineered...KN10222185- SKU:
- KN10222185
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- JET SIZE:
- 85
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
$14.55 -
MIKUNI Main Jet - #87.5 - 4-Pack N102221-875
MIKUNI
$14.55Precise fuel metering is the foundation of carburetor tuning, and the right main jet makes the difference between optimal performance and wasteful running conditions. The MIKUNI #87.5 Main Jet...KN102221875- SKU:
- KN102221875
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- MODEL:
- MIKUNI
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- JET SIZE:
- 87.5
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- MAIN
- UNITS:
- 4 PACK
$14.55Qty in Cart: 0Quantity:Price:$14.55Subtotal: -
MIKUNI Main Jet - #90 - 4-Pack N102221-90
MIKUNI
$14.55Fine-tuning your carburetor's fuel delivery is essential for achieving peak engine performance and reliability. The MIKUNI #90 Main Jet is a direct replacement for OE applications, ensuring your carb...KN10222190- SKU:
- KN10222190
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 90
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-90
MIKUNI
$5.20Precise fuel delivery at low throttle openings depends entirely on your pilot jet—get it wrong, and you're dealing with hard starts, hesitation, and unpredictable idle characteristics. The MIKUNI...KN10060690- SKU:
- KN10060690
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- 4 PACK
- JET SIZE:
- 90
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- PILOT
$5.20
