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 TMX Series Carburetor TM38-18
MIKUNI
$229.00The MIKUNI TMX Series TM38-18 carburetor delivers precise fuel metering and responsive throttle control that flat-slide designs are engineered to provide. Its lightweight construction and smooth-bore venturi geometry expand your powerband while...10020041- SKU:
- 10020041
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- CARBURETOR
- BASE FINISH:
- NATURAL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BORE SIZE METRIC:
- 44.00 MM
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- STYLE:
- FLAT SLIDE
$229.00Qty in Cart: 0Quantity:Price:$229.00Subtotal: -
MIKUNI TM Series Carburetor TM38-85
MIKUNI
$229.00If you're running an older round-slide carburetor, you're leaving performance on the table. The MIKUNI TM38-85 flat-slide design creates a smooth bore effect that significantly increases airflow, delivering noticeably sharper throttle response and more...10020043- SKU:
- 10020043
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MAIN JET:
- 230 (4/042)
- PILOT JET:
- 22.5 (VM22/210)
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 47
- AIR JET:
- NONE
- NEEDLE JET:
- Q-2 (389 SERIES)
- NEEDLE VALVE:
- -
- SLIDE CUTAWAY:
- 4.0
- STYLE:
- FLAT SLIDE
- UNITS:
- EACH
- CARBURETOR SIZE METRIC:
- 38.00 MM
- NEEDLE:
- 6FJ41
- PRODUCT NAME:
- CARBURETOR CENTER PULL
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$229.00Qty in Cart: 0Quantity:Price:$229.00Subtotal: -
MIKUNI TM Series Carburetor TM38-86
MIKUNI
$229.00The MIKUNI TM38-86 flat-slide carburetor delivers measurably better throttle response and airflow compared to conventional round-slide designs, making it the choice for builders seeking genuine performance gains without compromise. Its precision fuel...10020044- SKU:
- 10020044
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- MAIN JET:
- 230 (4/042)
- PILOT JET:
- 22.5 (VM22/210)
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- SLIDE CUTAWAY:
- 4.0
- CARBURETOR SIZE METRIC:
- 38.00 MM
- NEEDLE JET:
- Q-2 (389 SERIES)
- NEEDLE VALVE:
- -
- RIDING STYLE:
- STREET
- STYLE:
- FLAT SLIDE
- UNITS:
- EACH
- AIR JET:
- NONE
- NEEDLE:
- 6FJ41
- PRODUCT NAME:
- CARBURETOR CENTER PULL
- RIDING STYLE:
- UTV
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 43
$229.00Qty in Cart: 0Quantity:Price:$229.00Subtotal: -
MIKUNI TM Series Carburetor TM40-6
MIKUNI
$360.00If you're running an older round-slide carburetor, you're leaving performance on the table. The MIKUNI TM Series TM40-6 delivers measurably better throttle response and air flow through its flat-slide design, which creates a smooth bore effect that...10020045- SKU:
- 10020045
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- NEEDLE:
- J8-9DJY01
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 44
- RIDING STYLE:
- UTV
- SLIDE CUTAWAY:
- -
- AIR JET:
- 1.1
- MAIN JET:
- 165 (4/042)
- NEEDLE JET:
- Y-6 (568 SERIES)
- NEEDLE VALVE:
- -
- PRODUCT NAME:
- CARBURETOR BELL CRANK PUSH-PULL
- RIDING STYLE:
- STREET
- STYLE:
- FLAT SLIDE
- CARBURETOR SIZE METRIC:
- 40.00 MM
- PILOT JET:
- 17.5 (VM22/210)
- UNITS:
- EACH
$360.00Qty in Cart: 0Quantity:Price:$360.00Subtotal: -
MIKUNI VM Series Carburetor - 18mm VM18-144
MIKUNI
$165.00The Mikuni VM18-144 delivers reliable, predictable fuel delivery for carbureted performance builds where precision matters. Its round-slide design provides excellent flow characteristics and responsive throttle control, making it a trusted choice for...10020046- SKU:
- 10020046
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- COLOR/FINISH:
- SILVER
- FEATURES:
- CLAMP-ON TYPE MOUNTING
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- RIDING STYLE:
- OFF-ROAD
- MAIN JET:
- 80 (4/042)
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- AIR JET:
- 2.5
- CARBURETOR SIZE METRIC:
- 18.00 MM
- COLOR/FINISH:
- NATURAL
- NEEDLE:
- 4F18
- NEEDLE VALVE:
- 1.5 (VM15/172)
- RIDING STYLE:
- UTV
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 18
- BASE COLOR:
- SILVER
- NEEDLE JET:
- O-0 (145 SERIES)
- PILOT JET:
- 80 (VM22/210)
- SLIDE CUTAWAY:
- 3.0 (VM38/24)
- UNITS:
- EACH
$165.00 -
MIKUNI VM Series Carburetor - 22mm VM22-133
MIKUNI
$165.00The Mikuni VM22-133 delivers the precision fuel metering your high-revving engine demands, whether you're tuning a vintage street bike, small-displacement racer, or custom powersport build. Its round-slide design maximizes flow efficiency across the RPM...10020048- SKU:
- 10020048
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- CARBURETOR SIZE METRIC:
- 22.00 MM
- FEATURES:
- FLANGE TYPE MOUNTING
- NEEDLE VALVE:
- 2.0 (VM26/26)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- BASE COLOR:
- SILVER
- NEEDLE:
- 4D20
- PILOT JET:
- 30 (VM22/210)
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 22
- AIR JET:
- 2.5
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- SLIDE CUTAWAY:
- 2.0 (VM26/21)
- COLOR/FINISH:
- NATURAL
- MAIN JET:
- 100 (4/042)
- NEEDLE JET:
- N-8 (257 SERIES)
- UNITS:
- EACH
$165.00Qty in Cart: 0Quantity:Price:$165.00Subtotal: -
MIKUNI Pilot Jet - 4-Pack BS30/96-42.5
MIKUNI
$14.56Precise fuel metering is critical to carb tuning—and the pilot jet is where it starts. This 4-pack covers replacement needs and tuning experimentation, allowing you to dial in idle quality, low-rpm response, and off-throttle transition on your BS-series...KBS3096425- SKU:
- KBS3096425
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- BASE COLOR:
- BRASS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- JET SIZE:
- 42.5
- RIDING STYLE:
- ATV
- TYPE:
- PILOT
$14.56 -
MIKUNI Pilot Jet - 4-Pack BS30/96-47.5
MIKUNI
$14.56Precise fuel metering is the foundation of carburetor performance, and a worn or incorrect pilot jet directly impacts cold starts, idle quality, and low-speed throttle response. This OEM-specification 4-pack ensures you have replacements on hand and the...KBS3096475- SKU:
- KBS3096475
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- BASE COLOR:
- BRASS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- JET SIZE:
- 47.5
- RIDING STYLE:
- SNOW
- TYPE:
- PILOT
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$14.56 -
MOOSE RACING Carburetor Vent Line - Black - 1/8" - 5' 180-1407
MOOSE RACING
$15.95A carburetor vent line is a critical component that prevents fuel tank pressure buildup and maintains proper fuel system operation—neglecting it can lead to carburetor flooding, performance issues, and potential damage. The MOOSE RACING carburetor vent...M61091- SKU:
- M61091
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- LENGTH IMPERIAL:
- 5'
- LENGTH METRIC:
- 152 CM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- INSIDE DIAMETER METRIC:
- 3.2 MM
- MATERIAL:
- POLYURETHANE
- PRODUCT NAME:
- TUBING
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- APPLICATION:
- CARBURETED
- INSIDE DIAMETER IMPERIAL:
- 1/8'
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VENT
$15.95 -
MOOSE RACING Air Filter - CR80R '83-'85 1-20-01
MOOSE RACING
$26.95A clean air filter is non-negotiable for CR80R performance—restricted airflow kills throttle response and lets abrasive particles past your engine's first line of defense. The MOOSE RACING two-layer foam design traps large debris on the outer layer while...M7612001- SKU:
- M7612001
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- BASE COLOR:
- RED
- BASE COLOR:
- YELLOW
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- RED
- COLOR/FINISH:
- YELLOW
$26.95 -
MOOSE RACING Air Filter - Honda 1-20-02
MOOSE RACING
$26.95A quality air filter is non-negotiable for engine performance and longevity—it's your engine's first line of defense against contamination. The MOOSE RACING 1-20-02 uses a proven two-layer foam design that balances maximum airflow with superior...M7612002- SKU:
- M7612002
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- WHITE
- BASE COLOR:
- WHITE
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$26.95 -
MOOSE RACING Air Filter - CR450F 1-20-30
MOOSE RACING
$29.95A clogged or poorly-sealed air filter will rob your CR450F of power and invite contaminants into your engine—both problems that compromise performance and longevity. The MOOSE RACING Air Filter uses a dual-foam construction with a Super Seal neoprene...M7612030- SKU:
- M7612030
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- BASE COLOR:
- WHITE
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- WHITE
- UNITS:
- EACH
$29.95 -
CV4 Vent Tubing - Blue - 3mm SFSVT3-3B
CV4
$24.99Reliable vent tubing is critical for proper carburetor function, fuel system breathing, and cooling system efficiency—and cheap tubing fails under heat and pressure. The CV4 Vent Tubing delivers OEM-grade performance with pure silicone construction that...07060089- SKU:
- 07060089
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- INSIDE DIAMETER:
- 3,0 MM
- LENGTH IMPERIAL:
- 9.8'
- MATERIAL:
- SILICONE RUBBER
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- BASE COLOR:
- BLUE
- PRODUCT NAME:
- TUBING
- TYPE:
- VENT
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- INSIDE DIAMETER METRIC:
- 3.0 MM
- RIDING STYLE:
- STREET
$24.99Qty in Cart: 0Quantity:Price:$24.99Subtotal: -
CV4 Vent Tubing - Orange - 3mm SFSVT3-3O
CV4
$24.99Carburetor vent lines, overflow tubes, and coolant bypass hoses demand materials that won't degrade under heat cycles or harsh underhood conditions. The CV4 Vent Tubing delivers pure silicone construction rated to 420°F, ensuring reliable performance...07060091- SKU:
- 07060091
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
- BASE COLOR:
- ORANGE
- INSIDE DIAMETER:
- 3,0 MM
- PRODUCT NAME:
- TUBING
- RIDING STYLE:
- UTV
- MATERIAL:
- SILICONE RUBBER
- COLOR/FINISH:
- ORANGE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- VENT
- UNITS:
- EACH
- INSIDE DIAMETER METRIC:
- 3.0 MM
- LENGTH IMPERIAL:
- 9.8'
- RIDING STYLE:
- OFF-ROAD
$24.99Qty in Cart: 0Quantity:Price:$24.99Subtotal: -
CV4 Vent Tubing - Red - 3mm SFSVT3-3R
CV4
$24.99High-temperature vent tubing is critical for carburetor, overflow, and auxiliary cooling systems—any deterioration leads to leaks, system inefficiency, and potential engine bay contamination. The CV4 Vent Tubing handles extreme underhood temperatures...07060092- SKU:
- 07060092
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- COLOR/FINISH:
- RED
- RIDING STYLE:
- STREET
- TYPE:
- VENT
- UNITS:
- EACH
- MATERIAL:
- SILICONE RUBBER
- BASE COLOR:
- RED
- INSIDE DIAMETER:
- 3,0 MM
- PRODUCT NAME:
- TUBING
- RIDING STYLE:
- UTV
- INSIDE DIAMETER METRIC:
- 3.0 MM
- LENGTH IMPERIAL:
- 9.8'
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$24.99 -
CV4 Vent Tubing - Yellow - 3mm SFSVT3-3Y
CV4
$24.99Carburetor vent lines, overflow tubes, and coolant bypass hoses demand materials that won't degrade under heat cycling or chemical exposure. The CV4 Vent Tubing delivers pure silicone construction that maintains flexibility and integrity from idle to...07060093- SKU:
- 07060093
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- INSIDE DIAMETER:
- 3,0 MM
- MATERIAL:
- SILICONE RUBBER
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- TUBING
- TYPE:
- VENT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- YELLOW
- INSIDE DIAMETER METRIC:
- 3.0 MM
- LENGTH IMPERIAL:
- 9.8'
$24.99Qty in Cart: 0Quantity:Price:$24.99Subtotal: -
SHINDY Carburetor Repair Kit - YZ125 03-878
SHINDY
$29.95A properly tuned carburetor is the foundation of consistent engine performance, and worn jets, gaskets, and seals gradually degrade throttle response and fuel delivery precision. The SHINDY 03-878 Carburetor Repair Kit for YZ125 models (2003+) provides...10031240- SKU:
- 10031240
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CARBURETOR
- UNITS:
- KIT
$29.95Qty in Cart: 0Quantity:Price:$29.95Subtotal: -
SHINDY Carburetor Repair Kit - YZ400F 03-879
SHINDY
$45.95A carburetor that's lost its precision will rob your YZ400F of throttle response and fuel efficiency. This SHINDY Repair Kit restores your OEM carb to factory specifications with wear-resistant components engineered to handle modern fuel blends. Whether...10031241- SKU:
- 10031241
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CARBURETOR
- UNITS:
- KIT
$45.95 -
SHINDY Carburetor Repair Kit - PW50 03-880
SHINDY
$40.95A worn or varnished carburetor will cost you power, throttle response, and reliability—especially on a PW50 that demands precise fuel delivery for consistent performance. This complete SHINDY rebuild kit gives you all the jets, needles, and seals needed...10031242- SKU:
- 10031242
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- CARBURETOR
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$40.95 -
SHINDY Carburetor Repair Kit - TW200 03-891
SHINDY
$40.95A carburetor that's running lean, clogged, or out of tune will cost you performance and fuel efficiency. The SHINDY 03-891 Repair Kit gives you everything needed to fully rebuild your TW200 carburetor to factory specifications, restoring crisp throttle...10031248- SKU:
- 10031248
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CARBURETOR
$40.95
