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 J8-6DJ30
MIKUNI
$10.50Mid-range throttle response is where most carburetors struggle, and a worn or incorrect jet needle compounds the problem with hesitation and flat spots. The MIKUNI J8-6DJ30 restores precise fuel metering in this critical zone, giving you the crisp,...6DJ30- SKU:
- 6DJ30
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MODEL:
- J8-6DJ30
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$10.50 -
MIKUNI Air Jet #1.7 - 4-Pack BS30/97-1.7
MIKUNI
$14.55Precise fuel-air mixture tuning is non-negotiable for carbureted performance engines, and the MIKUNI Air Jet #1.7 gives you the control to dial in optimal atomization across your entire throttle range. Whether you're chasing consistent jetting for a...KBS309717- SKU:
- KBS309717
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 1.7
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BRASS
- MATERIAL:
- BRASS
- BASE COLOR:
- BRASS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- AIR
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Main Jet #125 - 4-Pack 4/042-125
MIKUNI
$14.56Precision fuel metering is the foundation of carburetor tuning, and running the correct main jet size is non-negotiable for consistent performance across throttle positions. This 4-pack of genuine Mikuni #125 main jets gives you the sizing flexibility to...KM4042125- SKU:
- KM4042125
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- 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
- FEATURES:
- FOR VM CARBURETORS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- HEAD TYPE:
- HEX HEAD
- JET SIZE:
- 125
- MATERIAL:
- BRASS
- OVERALL LENGTH:
- 12 MM (0,47')
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- UNITS:
- 4 PACK
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- RIDING STYLE:
- ATV
$14.56 -
MIKUNI Main Jet #130 - 4-Pack 4/042-130
MIKUNI
$14.56Precise fuel metering is non-negotiable when you're tuning a Mikuni carburetor for peak performance. A #130 main jet directly controls fuel flow at mid to high throttle, making it essential for achieving the correct air-fuel ratio on your specific engine...KM4042130- SKU:
- KM4042130
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- HEAD TYPE:
- HEX HEAD
- JET SIZE:
- 130
- OVERALL DIAMETER METRIC:
- 6.00 MM
- OVERALL LENGTH:
- 12 MM (0,47')
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- UNITS:
- 4 PACK
- FEATURES:
- FOR VM CARBURETORS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- ATV
$14.56 -
MIKUNI Main Jet #135 - 4-Pack 4/042-135
MIKUNI
$14.56Precise jetting is the foundation of carburetor tuning—get it wrong, and you're leaving power on the table or risking lean-condition damage. The MIKUNI Main Jet #135 delivers the exact fuel metering your engine needs across the mid-to-high RPM range,...KM4042135- SKU:
- KM4042135
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD TYPE:
- HEX HEAD
- OVERALL LENGTH:
- 12 MM (0,47')
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- BRASS
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- UTV
- FEATURES:
- FOR VM CARBURETORS
- JET SIZE:
- 135
- OVERALL DIAMETER METRIC:
- 6.00 MM
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
$14.56 -
MIKUNI Main Jet - #140 - 4-Pack N102221-140
MIKUNI
$14.55If you're tuning a CV or Power Jet carburetor, jet selection directly impacts fuel delivery and engine performance across your RPM range. The MIKUNI #140 main jet is engineered for precise fuel metering in mid-to-high throttle conditions, ensuring your...KN102221140- SKU:
- KN102221140
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- MIKUNI
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- WATERCRAFT
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- JET SIZE:
- 140
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Main Jet #430 - 4-Pack 4/042-430
MIKUNI
$5.20Carburetor tuning is the foundation of reliable performance, and the right main jet is non-negotiable for proper fuel delivery at full throttle. This 4-pack of Mikuni #430 main jets ensures you have spares on hand for testing, backup, or multiple...KM4042430- SKU:
- KM4042430
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD TYPE:
- HEX HEAD
- MATERIAL:
- BRASS
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- JET SIZE:
- 430
- OVERALL DIAMETER METRIC:
- 6.00 MM
- OVERALL LENGTH:
- 12 MM (0,47')
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- FEATURES:
- FOR VM CARBURETORS
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- SNOW
- UNITS:
- 4 PACK
$5.20 -
MIKUNI Main Jet #440 - 4-Pack 4/042-440
MIKUNI
$5.20If your Mikuni carb is running rich or you're chasing peak performance across the RPM band, jetting is your first lever. The #440 main jet is the direct upgrade path for VM-series and TMX carburetors that shipped with 4/042 specifications—a...KM4042440- SKU:
- KM4042440
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD TYPE:
- HEX HEAD
- JET SIZE:
- 440
- MATERIAL:
- BRASS
- OVERALL LENGTH:
- 12 MM (0,47')
- RIDING STYLE:
- OFF-ROAD
- FEATURES:
- FOR VM CARBURETORS
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL DIAMETER METRIC:
- 6.00 MM
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH METRIC:
- 12 MM
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
$5.20 -
MIKUNI Main Jet #450 - 4-Pack 4/042-450
MIKUNI
$14.56Proper jetting is foundational to carburetor tuning—too lean and you risk engine damage, too rich and you lose power and efficiency. The MIKUNI #450 main jet delivers precise fuel metering for mid-range and full-throttle performance across a wide range...KM4042450- SKU:
- KM4042450
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- FEATURES:
- FOR VM CARBURETORS
- JET SIZE:
- 450
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- SNOW
- UNITS:
- 4 PACK
- 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
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- HEAD TYPE:
- HEX HEAD
- MATERIAL:
- BRASS
$14.56 -
MOOSE RACING Torque Spacer - RM/LT250/500 10-300SK
MOOSE RACING
$41.95If you're running a RM/LT250/500 and want more responsive power in the low to mid-range, this torque spacer delivers a straightforward solution. By repositioning your torque curve, you'll feel immediate throttle response and stronger acceleration where...M56010300- SKU:
- M56010300
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- BASE COLOR:
- SILVER
- FEATURES:
- INCLUDES GASKETS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- INTAKE SPACER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TORQUE
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- COLOR/FINISH:
- SILVER
- MATERIAL:
- CNC-MACHINED
$41.95 -
MIKUNI Needle and Seat VM28/163-1.8
MIKUNI
$24.15A worn or damaged needle and seat directly compromises carburetor tuning and fuel delivery consistency—critical factors that separate reliable performance from unpredictable running conditions. This genuine Mikuni assembly restores precise fuel metering,...VM2816318- SKU:
- VM2816318
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$24.15 -
MIKUNI Needle and Seat VM28/511-1.5
MIKUNI
$24.15The needle and seat assembly is the critical control valve in your carburetor—when it wears, fuel delivery becomes inconsistent, leading to poor idle quality, hesitation, and unpredictable jetting. This genuine Mikuni VM28/511-1.5 assembly restores...VM2851115- SKU:
- VM2851115
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$24.15Qty in Cart: 0Quantity:Price:$24.15Subtotal: -
MIKUNI Pilot Jet - 4-Pack BS30/96-55
MIKUNI
$5.20A properly sized pilot jet is critical for smooth idle quality, clean throttle response, and fuel economy across your entire RPM range. If your Mikuni CV carb is running rich at idle or stumbling off-throttle, this OEM-spec replacement could be the...KBS309655- SKU:
- KBS309655
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE COLOR:
- BRASS
- RIDING STYLE:
- STREET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- PILOT
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- JET SIZE:
- 55
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
$5.20 -
MIKUNI Air Jet #0.7 - 4-Pack BS30/97-0.7
MIKUNI
$14.55Precise fuel-air mixture tuning demands precision components—and these OEM Mikuni air jets are essential for dialing in your carburettor's performance. Whether you're chasing peak horsepower or hunting for the ideal idle quality, swapping air jets is the...KBS309707- SKU:
- KBS309707
- 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:
- AIR
- UNITS:
- 4 PACK
- MATERIAL:
- BRASS
- BASE COLOR:
- BRASS
- JET SIZE:
- 0.7
- COLOR/FINISH:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$14.55 -
MIKUNI Air Jet #1.0 - 4-Pack BS30/97-1.0
MIKUNI
$14.55Precise fuel-air mixture tuning requires the right jet components, and the MIKUNI Air Jet #1.0 gives you the control to dial in your carburetor's performance across your entire RPM range. Whether you're chasing peak power on the dyno or fine-tuning...KBS309710- SKU:
- KBS309710
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE COLOR:
- BRASS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
- JET SIZE:
- 1
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- AIR
- COLOR/FINISH:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$14.55Qty in Cart: 0Quantity:Price:$14.55Subtotal: -
MIKUNI Main Jet - #185 - 4-Pack N102221-185
MIKUNI
$14.55If you're tuning a Mikuni carburetor for optimal fuel delivery across your RPM range, the main jet is your primary control—and a worn or incorrect jet directly impacts throttle response, fuel economy, and peak power. The #185 main jet delivers the...KN102221185- SKU:
- KN102221185
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- MODEL:
- MIKUNI
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- WATERCRAFT
- JET SIZE:
- 185
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
$14.55 -
MIKUNI Main Jet #410 - 4-Pack 4/042-410
MIKUNI
$5.20Precise jetting is the foundation of carb tuning—get it wrong and you're leaving power on the table or running dangerously lean. These OEM-spec Mikuni #410 main jets give you the exact fuel metering your engine needs for peak performance across the RPM...KM4042410- SKU:
- KM4042410
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- 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
- HEAD TYPE:
- HEX HEAD
- JET SIZE:
- 410
- MATERIAL:
- BRASS
- OVERALL LENGTH:
- 12 MM (0,47')
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- FEATURES:
- FOR VM CARBURETORS
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- ATV
$5.20 -
MIKUNI Main Jet #720 - 4-Pack 4/042-720
MIKUNI
$5.20Fine-tuning your carburetor's fuel delivery is essential for consistent performance, whether you're dialing in a race engine or optimizing a street build. A worn or incorrect main jet directly impacts throttle response, fuel economy, and peak...KM4042720- SKU:
- KM4042720
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- 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
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- HEAD TYPE:
- HEX HEAD
- JET SIZE:
- 720
- 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'
- RIDING STYLE:
- ATV
$5.20Qty in Cart: 0Quantity:Price:$5.20Subtotal: -
Samco Sport Vent Line Blue 3mm ID for Carbureted Vehicles USA-VT3B-2W-BL
SAMCO SPORT
$24.95Carburetor and overflow systems require reliable hose routing to prevent vacuum leaks and maintain proper engine breathing. The Samco Sport Vent Line delivers consistent performance with proven durability across demanding applications, while its flexible...07060152- SKU:
- 07060152
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- BASE COLOR:
- BLUE
- OUTSIDE DIAMETER METRIC:
- 7 MM
- PRODUCT NAME:
- TUBING
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- BLUE
- MATERIAL:
- SILICONE
- RIDING STYLE:
- STREET
- TYPE:
- VENT
- APPLICATION:
- CARBURETED
- INSIDE DIAMETER METRIC:
- 3.0 MM
- LENGTH IMPERIAL:
- 10'
- LENGTH METRIC:
- 305 CM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$24.95 -
MIKUNI VM Series Carburetor - 26mm VM26-606
MIKUNI
$142.00The Mikuni VM26-606 is a purpose-built 26mm carburetor engineered for riders and builders who demand precise fuel delivery and responsive throttle control. Its round slide design maximizes intake flow while maintaining the accuracy needed for both street...10020050- SKU:
- 10020050
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- MAIN JET:
- 190 (4/042)
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- BASE COLOR:
- SILVER
- FEATURES:
- CLAMP-ON TYPE MOUNTING
- NEEDLE:
- 5E75
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 35
- CARBURETOR SIZE METRIC:
- 26.00 MM
- COLOR/FINISH:
- SILVER
- NEEDLE JET:
- O-0 (332 SERIES)
- NEEDLE VALVE:
- 2.5 (VM26/26)
- PILOT JET:
- 22.5 (M28/1001)
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- AIR JET:
- 0.5
- COLOR/FINISH:
- NATURAL
- RIDING STYLE:
- ATV
- SLIDE CUTAWAY:
- 1.5 (VM26/21)
$142.00
