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 TM Series Carburetor TM36-68
MIKUNI
$385.00If you're running an older round-slide carburetor, you're leaving performance on the table. The MIKUNI TM36-68 flat-slide design creates a smooth bore effect that dramatically increases air flow, translating to sharper throttle response and more precise...10020040- SKU:
- 10020040
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- NEEDLE VALVE:
- -
- PILOT JET:
- 12.5 (VM28/486)
- UNITS:
- EACH
- AIR JET:
- 1.0
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- MAIN JET:
- 130 (N100.604)
- NEEDLE:
- 9DZH6-50
- RIDING STYLE:
- ATV
- CARBURETOR SIZE METRIC:
- 36.00 MM
- NEEDLE JET:
- P-8 (568 SERIES)
- PRODUCT NAME:
- CARBURETOR BELL CRANK PUSH-PULL
- RIDING STYLE:
- STREET
- SLIDE CUTAWAY:
- -
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 42
- STYLE:
- FLAT SLIDE
$385.00Qty in Cart: 0Quantity:Price:$385.00Subtotal: -
MIKUNI VM Series Carburetor - 20mm VM20-273
MIKUNI
$165.00The Mikuni VM20-273 delivers precise fuel atomization and responsive throttle control for small-displacement engines where carburetor tuning directly impacts performance. Its round-slide design maximizes intake flow while maintaining the metering...10020047- SKU:
- 10020047
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- SILVER
- FEATURES:
- FLANGE TYPE MOUNTING
- NEEDLE:
- 4J13
- NEEDLE JET:
- O-6/N-6 (238/332 SERIES)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- RIDING STYLE:
- OFF-ROAD
- SLIDE CUTAWAY:
- 2.0 (VM38/24)
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 20
- AIR JET:
- 0.5
- COLOR/FINISH:
- NATURAL
- NEEDLE VALVE:
- 1.5 (VM15/172)
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- BASE COLOR:
- SILVER
- CARBURETOR SIZE METRIC:
- 20.00 MM
- MAIN JET:
- 180 (4/042)
- PILOT JET:
- 22.5 (M28/1001)
- UNITS:
- EACH
$165.00 -
MIKUNI VM Series Carburetor - 24mm VM24-512
MIKUNI
$165.00The Mikuni VM24-512 is a precision-engineered 24mm carburetor built for engines demanding reliable fuel delivery across variable load conditions. Its round slide design maximizes airflow efficiency while maintaining precise atomization, making it the...10020049- SKU:
- 10020049
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- NEEDLE JET:
- N-8 (864 SERIES)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- RIDING STYLE:
- STREET
- CARBURETOR SIZE METRIC:
- 24.00 MM
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- BASE COLOR:
- SILVER
- FEATURES:
- RIGHT SIDE IDLE ADJUSTMENT SCREW
- MAIN JET:
- 210 (4/042)
- NEEDLE:
- 5L14-4
- NEEDLE VALVE:
- 2.0 (VM26/26)
- RIDING STYLE:
- ATV
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 35
- AIR JET:
- 0.8
- COLOR/FINISH:
- NATURAL
- PILOT JET:
- 40 (VM22/210)
- SLIDE CUTAWAY:
- 1.5 (VM26/21)
- UNITS:
- EACH
$165.00Qty in Cart: 0Quantity:Price:$165.00Subtotal: -
MIKUNI Pilot Jet - 4-Pack BS30/96-45
MIKUNI
$14.56Precision pilot jet sizing is critical for smooth idle quality and low-RPM throttle response in CV carbureted engines. This OEM-spec MIKUNI pilot jet set ensures accurate fuel metering at part-throttle operation, eliminating stumbles and hesitation...KBS309645- SKU:
- KBS309645
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- TYPE:
- PILOT
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- BASE COLOR:
- BRASS
- JET SIZE:
- 45
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
$14.56 -
CV4 Vent Tubing - Green - 3mm SFSVT3-3G
CV4
$24.99Carburetor vent lines, overflow tubes, and coolant bypass hoses demand materials that won't degrade under heat and fuel vapor exposure. The CV4 Vent Tubing delivers pure silicone construction rated to 420°F, ensuring reliable performance across multiple...07060090- SKU:
- 07060090
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- STREET
- TYPE:
- VENT
- MATERIAL:
- SILICONE RUBBER
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- GREEN
- PRODUCT NAME:
- TUBING
- BASE COLOR:
- GREEN
- INSIDE DIAMETER:
- 3,0 MM
- INSIDE DIAMETER METRIC:
- 3.0 MM
- LENGTH IMPERIAL:
- 9.8'
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$24.99Qty in Cart: 0Quantity:Price:$24.99Subtotal: -
MIKUNI Needle Jet 990-793-004-Q-5
MIKUNI
$15.49Precise carburetor tuning separates a well-running engine from a truly dialed-in performance machine. The MIKUNI Needle Jet 990-793-004-Q-5 gives you granular control over fuel delivery in the critical 1/4-3/4 throttle range, where most street and track...159Q5- SKU:
- 159Q5
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- FEATURES:
- FOR VM 30 MM - 36 MM SPIGOT
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- MODEL:
- TYPE 159
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- JET SIZE:
- Q-5
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$15.49 -
MIKUNI Pilot Jet #70 4-Pack VM22/210-70
MIKUNI
$14.55A properly sized pilot jet is fundamental to carburetor tuning—it directly controls fuel delivery at idle and low-throttle conditions, where engine responsiveness and smooth operation are critical. If your VM, TM, or TMX carb isn't delivering clean,...KM570- SKU:
- KM570
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 70
- TYPE:
- PILOT
- COLOR/FINISH:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- BASE COLOR:
- BRASS
- FEATURES:
- FOR VM CARBURETORS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- HEAD DIAMETER METRIC:
- 4.00 MM
- MATERIAL:
- BRASS
- OVERALL LENGTH METRIC:
- 14.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$14.55 -
SHINDY Carburetor Kit - Xpress/300 '94-'95 03-402
SHINDY
$21.95If your SHINDY carburetor on your '94-'95 Xpress/300 is running lean, flooding, or hesitating on throttle, a complete rebuild kit is the most cost-effective way to restore proper fuel delivery and stable idle quality. This OEM-spec kit includes all...10031095- SKU:
- 10031095
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLACK
- TYPE:
- CARBURETOR
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- CONVERSION KIT
- BASE COLOR:
- BLACK
$21.95Qty in Cart: 0Quantity:Price:$21.95Subtotal: -
K&L SUPPLY Economy Carburetor Repair Kit - Suzuki 18-4940
K&L SUPPLY
$22.95A carburetor that's running rough, hesitating, or flooding is often just telling you it needs a proper rebuild—and this K&L SUPPLY Economy Kit gives you everything necessary to restore your Suzuki carb to reliable, consistent performance without the shop...10030422- SKU:
- 10030422
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- KIT
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- REPAIR KIT
- MODEL:
- ECONOMY
- RIDING STYLE:
- ATV
- TYPE:
- CARBURETOR
$22.95Qty in Cart: 0Quantity:Price:$22.95Subtotal: -
K&L SUPPLY Economy Carburetor Repair Kit - Suzuki 18-4910
K&L SUPPLY
$22.95A carburetor that's running rich, leaking, or hesitating is costing you performance and fuel economy. This K&L Supply economy kit gives you everything needed to restore your Suzuki carb to OEM specifications without the expense of a full replacement...10030423- SKU:
- 10030423
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MATERIAL:
- RUBBER
- MODEL:
- ECONOMY
- TYPE:
- CARBURETOR
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- REPAIR KIT
$22.95 -
K&L SUPPLY Economy Carburetor Repair Kit - Yamaha 18-9391
K&L SUPPLY
$24.95A carburetor that's running rich, leaking fuel, or hesitating on acceleration is costing you performance and reliability. The K&L SUPPLY Economy Carburetor Repair Kit gives you all the gaskets, O-rings, and components needed to restore your Yamaha carb...10030427- SKU:
- 10030427
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- ECONOMY
- TYPE:
- CARBURETOR
- UNITS:
- KIT
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- UTV
$24.95Qty in Cart: 0Quantity:Price:$24.95Subtotal: -
SHINDY Carburetor Kit - ALT/LT125 '83-'87 03-201
SHINDY
$16.95If your ALT/LT125 carburetor is running rough, leaking fuel, or struggling to start, it's time for a complete rebuild rather than patching individual components. The SHINDY Carburetor Kit gives you every gasket, jet, and valve needed to restore your...10031038- SKU:
- 10031038
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- CONVERSION KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BASE COLOR:
- BLACK
- RIDING STYLE:
- ATV
- TYPE:
- CARBURETOR
$16.95 -
SHINDY Carburetor Repair Kit - XR650L 03-741
SHINDY
$30.95A carburetor that's out of tune is costing you power, fuel economy, and throttle response. The SHINDY Carburetor Repair Kit for XR650L models gives you everything needed to restore your OEM carb to factory specifications—or dial it in for your specific...10031173- SKU:
- 10031173
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- CARBURETOR
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$30.95Qty in Cart: 0Quantity:Price:$30.95Subtotal: -
SHINDY Carburetor Kit - KX125 '01-'02 03-752
SHINDY
$25.95Carburetor performance directly impacts throttle response, fuel efficiency, and overall engine reliability on your KX125. The SHINDY Carburetor Kit gives you a complete rebuild solution with OEM-quality components, eliminating lean or rich running...10031176- SKU:
- 10031176
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- CARBURETOR
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$25.95Qty in Cart: 0Quantity:Price:$25.95Subtotal: -
SHINDY Carburetor Repair Kit - Kawasaki 03-757
SHINDY
$42.95A worn or sluggish carburetor directly impacts throttle response, fuel economy, and engine reliability—especially on high-performance machines where precision tuning matters. The SHINDY 03-757 gives you OEM-quality replacement components and tuning...10031181- SKU:
- 10031181
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- REPAIR KIT
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CARBURETOR
$42.95 -
SHINDY Carburetor Repair Kit - KLX110 03-759
SHINDY
$42.95A carburetor that's running lean, rich, or stumbling off idle will kill both your performance and your engine's longevity. The SHINDY Carburetor Repair Kit for KLX110 models gives you everything needed to restore your OEM carb to factory...10031183- SKU:
- 10031183
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CARBURETOR
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
$42.95Qty in Cart: 0Quantity:Price:$42.95Subtotal: -
SHINDY Carburetor Kit - YZ250 '02-'04 03-856
SHINDY
$31.95Carburetor performance directly impacts throttle response, fuel economy, and engine reliability on your YZ250. This complete rebuild kit gives you OEM-quality components without the dealer markup, allowing you to dial in jetting for your specific riding...10031219- SKU:
- 10031219
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- CARBURETOR
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
$31.95 -
SHINDY Carburetor Repair Kit - Yamaha 03-860
SHINDY
$42.95A carburetor that's running lean or fouled will cost you power and reliability on the track or trail. The SHINDY 03-860 Repair Kit gives you everything needed to restore your Yamaha carburetor to OEM specifications—main jets, pilot jets, needle sets,...10031222- SKU:
- 10031222
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CARBURETOR
- UNITS:
- KIT
$42.95Qty in Cart: 0Quantity:Price:$42.95Subtotal: -
SHINDY Carburetor Repair Kit - Yamaha 03-867
SHINDY
$48.95A carburetor that's been sitting in storage or running rough needs more than just a cleaning—it needs a complete rebuild with OEM-equivalent components. The SHINDY 03-867 Repair Kit supplies all the precision jets, valves, and gaskets necessary to...10031229- SKU:
- 10031229
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- CARBURETOR
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$48.95 -
SHINDY Carburetor Repair Kit - TTR90 03-874
SHINDY
$40.95A properly tuned carburetor is the foundation of reliable engine performance, and worn jets, needles, and seals directly impact throttle response, fuel economy, and cold starts. This SHINDY kit gives you all the components needed to restore your TTR90...10031236- SKU:
- 10031236
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- CARBURETOR
$40.95
