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 VM Series Carburetor - 34mm VM34-275
MIKUNI
$170.00The Mikuni VM34-275 delivers precise fuel metering and responsive throttle control for carbureted performance engines. Its round slide design maximizes airflow efficiency while maintaining accurate atomization across the RPM range. Whether you're tuning...10020054- SKU:
- 10020054
- Availability:
- Ships Same Business Day
- Weight:
- 1.93 LBS
- COLOR/FINISH:
- SILVER
- FEATURES:
- CLAMP-ON TYPE MOUNTING
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- RIDING STYLE:
- OFF-ROAD
- CARBURETOR SIZE METRIC:
- 34.00 MM
- NEEDLE:
- 6DH4
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- SLIDE CUTAWAY:
- 2.5 (VM32/65)
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 40
- COLOR/FINISH:
- NATURAL
- NEEDLE VALVE:
- 3.3 (VM34/39)
- RIDING STYLE:
- UTV
- AIR JET:
- 2.0
- BASE COLOR:
- SILVER
- MAIN JET:
- 260 (4/042)
- NEEDLE JET:
- Q-2 (159 SERIES)
- PILOT JET:
- 35 (VM22/210)
- UNITS:
- EACH
$170.00Qty in Cart: 0Quantity:Price:$170.00Subtotal: -
MIKUNI VM Series Carburetor - 36mm VM36-4
MIKUNI
$184.00The MIKUNI VM Series 36mm carburetor delivers reliable fuel metering and responsive throttle control for high-performance applications requiring precision tuning. Purpose-built for racers and serious enthusiasts, this round-slide design maximizes flow...10020055- SKU:
- 10020055
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- COLOR/FINISH:
- SILVER
- FEATURES:
- CLAMP-ON TYPE MOUNTING
- MAIN JET:
- 310 (4/042)
- NEEDLE JET:
- Q-5 (159 SERIES)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- CARBURETOR SIZE METRIC:
- 36.00 MM
- COLOR/FINISH:
- NATURAL
- NEEDLE VALVE:
- 3.3 (VM34/39)
- RIDING STYLE:
- UTV
- RIDING STYLE:
- STREET
- AIR JET:
- 2.0
- BASE COLOR:
- SILVER
- NEEDLE:
- 6FJ6
- PILOT JET:
- 35 (VM22/210)
- SLIDE CUTAWAY:
- 2.5 (VM36/36)
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 43
- UNITS:
- EACH
$184.00Qty in Cart: 0Quantity:Price:$184.00Subtotal: -
MIKUNI VM Series Carburetor - 38mm VM38-9
MIKUNI
$184.00The Mikuni VM38-9 delivers precise fuel atomization and responsive throttle control for carbureted performance builds. Its round-slide design maximizes intake flow while maintaining excellent low-to-mid-range tuning capability, making it the go-to choice...10020056- SKU:
- 10020056
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- AIR JET:
- 0.5
- COLOR/FINISH:
- SILVER
- FEATURES:
- CLAMP-ON TYPE MOUNTING
- NEEDLE VALVE:
- 3.3 (VM34/39)
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- CARBURETOR SIZE METRIC:
- 38.00 MM
- MAIN JET:
- 330 (4/042)
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- NATURAL
- NEEDLE JET:
- Q-2 (166 SERIES)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- SLIDE CUTAWAY:
- 2.5 (VM38/24)
- BASE COLOR:
- SILVER
- NEEDLE:
- 6DP1
- PILOT JET:
- 30 (VM22/210)
- RIDING STYLE:
- UTV
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 43
$184.00 -
MIKUNI Motorcycle Carburetor - 32mm VM32-33
MIKUNI
$165.00The MIKUNI VM32-33 is a precision-engineered carburetor built for motorcycles that demand consistent, reliable fuel delivery across a wide throttle range. Its 32mm round slide design delivers excellent flow characteristics while maintaining the...VM3233- SKU:
- VM3233
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- AIR JET:
- 2.0
- BASE COLOR:
- SILVER
- CARBURETOR SIZE METRIC:
- 32.00 MM
- COLOR/FINISH:
- NATURAL
- PILOT JET:
- 35 (VM22/210)
- RIDING STYLE:
- STREET
- NEEDLE JET:
- Q-6 (159 SERIES)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- FEATURES:
- CLAMP-ON TYPE MOUNTING
- MAIN JET:
- 200 (4/042)
- NEEDLE:
- 6DP17
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- NEEDLE VALVE:
- 3.3 (VM34/39)
- SLIDE CUTAWAY:
- 3.0 (VM34/110)
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 40
$165.00Qty in Cart: 0Quantity:Price:$165.00Subtotal: -
MIKUNI Motorcycle Carburetor - 34mm VM34-168
MIKUNI
$170.00The MIKUNI VM34-168 delivers precise fuel delivery and exceptional atomization for motorcycles demanding responsive throttle control and consistent performance across varying load conditions. Its round slide design maximizes intake flow while maintaining...VM34168- SKU:
- VM34168
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CARBURETOR SIZE METRIC:
- 34.00 MM
- NEEDLE:
- 6DH4
- NEEDLE VALVE:
- 3.3 (VM34/39)
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- SILVER
- FEATURES:
- CLAMP-ON TYPE MOUNTING
- RIDING STYLE:
- ATV
- SLIDE CUTAWAY:
- 2.5 (VM34/110)
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 40
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- COLOR/FINISH:
- NATURAL
- NEEDLE JET:
- Q-2 (159 SERIES)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- RIDING STYLE:
- UTV
- AIR JET:
- 2.0
- MAIN JET:
- 260 (4/042)
- PILOT JET:
- 35 (VM22/210)
- RIDING STYLE:
- STREET
$170.00 -
MIKUNI Needle Jet VM34/05-O-4
MIKUNI
$15.49Fine-tuning your carb's midrange response requires precision—and a genuine Mikuni needle jet delivers exactly that. The VM34/05-O-4 gives you direct control over fuel delivery in the critical 1/4 to 3/4 throttle range, where most real-world riding...159O4- SKU:
- 159O4
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- FEATURES:
- FOR VM 30 MM - 36 MM SPIGOT
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- NEEDLE
- UNITS:
- EACH
- JET SIZE:
- O-4
- MATERIAL:
- BRASS
- MODEL:
- TYPE 159
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$15.49 -
MIKUNI Needle Jet 990-793-004-P-8
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance requires precision, and the MIKUNI Needle Jet 990-793-004-P-8 delivers exactly that. This genuine Mikuni component directly controls fuel delivery at 1/4 to 3/4 throttle—the range where most real-world...159P8- SKU:
- 159P8
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- FEATURES:
- FOR VM 30 MM - 36 MM SPIGOT
- MATERIAL:
- BRASS
- MODEL:
- TYPE 159
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- JET SIZE:
- P-8
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- NEEDLE
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
$15.49 -
MIKUNI Dual Fuel Pump DF52-176
MIKUNI
$52.95Dual-carb setups demand consistent fuel delivery under varying engine loads and RPM ranges—any fluctuation in pressure or flow compromises throttle response and drivability. The genuine Mikuni DF52-176 is engineered to handle the demands of...DF52- SKU:
- DF52
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- FUEL PUMP
- UNITS:
- EACH
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- STYLE:
- DUAL CARBURETOR
$52.95 -
MIKUNI Main Jet #175 - 4-Pack 4/042-175
MIKUNI
$14.56Running the wrong main jet size in your Mikuni carb costs you power and driveability—whether you're chasing peak RPM performance or dialing in your street setup. The #175 main jet is the precision tuning solution for mid-to-high speed fuel delivery,...KM4042175- SKU:
- KM4042175
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- HEAD TYPE:
- HEX HEAD
- OVERALL LENGTH:
- 12 MM (0,47')
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- UTV
- MATERIAL:
- BRASS
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- 4 PACK
- FEATURES:
- FOR VM CARBURETORS
- JET SIZE:
- 175
- OVERALL DIAMETER METRIC:
- 6.00 MM
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
$14.56 -
MIKUNI Super BN Series Pilot Jet - 4-Pack N100606-675
MIKUNI
$5.20Precise carburetor tuning starts with the right pilot jet, and the MIKUNI Super BN Series delivers the consistency you need for clean idle and smooth low-end response across varying conditions. Whether you're dialing in a vintage race engine or...KN100606675- SKU:
- KN100606675
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 67.5
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- PILOT
- PRODUCT NAME:
- JET
- UNITS:
- 4 PACK
$5.20 -
MIKUNI Needle Jet 785-24001-P-2
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance requires precision, and the MIKUNI Needle Jet 785-24001-P-2 delivers exactly that. This genuine Mikuni component gives you direct control over fuel delivery in the critical 1/4 to 3/4 throttle range—the...389P2- SKU:
- 389P2
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- NEEDLE
- FEATURES:
- FOR TM 32 MM - 33 MM SPIGOT
- MODEL:
- TYPE 389
- JET SIZE:
- P-2
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$15.49Qty in Cart: 0Quantity:Price:$15.49Subtotal: -
MIKUNI TM Series Carburetor TM33-8012
MIKUNI
$476.95If you're running an older round-slide carburetor, you're leaving power on the table. The MIKUNI TM33-8012 flat-slide design creates a smooth bore effect that significantly increases air flow, delivering noticeably sharper throttle response and more...10020038- SKU:
- 10020038
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CARBURETOR SIZE METRIC:
- 33.00 MM
- MAIN JET:
- 127.5 (N100.604)
- PILOT JET:
- 37.5 (VM28/486)
- RIDING STYLE:
- OFF-ROAD
- AIR JET:
- 0.7
- NEEDLE JET:
- P-8 (640 SERIES)
- PRODUCT NAME:
- CARBURETOR
- RIDING STYLE:
- UTV
- SLIDE CUTAWAY:
- -
- NEEDLE:
- 5FP96
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 40
- STYLE:
- FLAT SLIDE
- NEEDLE VALVE:
- -
- UNITS:
- EACH
$476.95 -
MIKUNI Main Jet #290 - 4-Pack 4/042-290
MIKUNI
$14.56Proper jetting is fundamental to carburetor performance—too lean and you risk engine damage, too rich and you sacrifice efficiency and throttle response. The MIKUNI Main Jet #290 is a precision-engineered component that ensures your carb delivers the...KM4042290- SKU:
- KM4042290
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- ATV
- UNITS:
- 4 PACK
- FEATURES:
- FOR VM CARBURETORS
- JET SIZE:
- 290
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- HEAD TYPE:
- HEX HEAD
- OVERALL DIAMETER METRIC:
- 6.00 MM
- OVERALL LENGTH:
- 12 MM (0,47')
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- 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
$14.56Qty in Cart: 0Quantity:Price:$14.56Subtotal: -
MIKUNI TMX Series Carburetor TM35-1
MIKUNI
$229.00The MIKUNI TMX Series TM35-1 carburetor delivers the precision fuel metering and responsive throttle control that separates competitive machines from the rest. Its flat-slide design with smooth-bore venturi eliminates hesitation during acceleration,...10020039- SKU:
- 10020039
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- STYLE:
- FLAT SLIDE
- BASE FINISH:
- NATURAL
- BORE SIZE METRIC:
- 40.00 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- CARBURETOR
$229.00Qty in Cart: 0Quantity:Price:$229.00Subtotal: -
MIKUNI TMX Series Carburetor TM38-27
MIKUNI
$229.00If you're running a carbureted engine and want noticeably sharper throttle response with better performance across the RPM range, the MIKUNI TMX Series TM38-27 delivers exactly that. The flat-slide design with a smooth bore venturi eliminates the lag...10020042- SKU:
- 10020042
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- BASE FINISH:
- NATURAL
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- CARBURETOR
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BORE SIZE METRIC:
- 38.00 MM
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- STYLE:
- FLAT SLIDE
$229.00Qty in Cart: 0Quantity:Price:$229.00Subtotal: -
MIKUNI VM Series Carburetor - 44mm VM44-3
MIKUNI
$184.00The MIKUNI VM44-3 is a precision-engineered 44mm carburetor purpose-built for high-performance applications where reliable fuel delivery and responsive throttle control are non-negotiable. The round slide design optimizes intake flow characteristics,...10020057- SKU:
- 10020057
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- AIR JET:
- 0.5
- CARBURETOR SIZE METRIC:
- 44.00 MM
- COLOR/FINISH:
- NATURAL
- FEATURES:
- CLAMP-ON TYPE MOUNTING
- MAIN JET:
- 310 (4/042)
- NEEDLE VALVE:
- 3.3 (VM34/39)
- RIDING STYLE:
- ATV
- SLIDE CUTAWAY:
- 2.5 (VM44/23)
- BASE COLOR:
- SILVER
- NEEDLE JET:
- AA-5 (224 SERIES)
- PRODUCT NAME:
- VM ROUND SLIDE CARBURETOR
- COLOR/FINISH:
- SILVER
- NEEDLE:
- 7F7
- PILOT JET:
- 35 (VM22/210)
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- SPIGOT MOUNTING OUTSIDE DIAMETER:
- 52
$184.00 -
SHINDY Carburetor Kit - CR80R/CR85R 03-701
SHINDY
$32.95A carburetor that's out of tune kills power, throttle response, and fuel efficiency—and worn internal components only make it worse. The SHINDY Carburetor Kit for CR80R/CR85R models gives you a complete rebuild solution with OEM-quality jets, needle...10031136- SKU:
- 10031136
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- CARBURETOR
$32.95 -
SHINDY Carburetor Kit - CR250R '01-'03 03-705
SHINDY
$30.95Carburetor performance directly impacts throttle response, fuel atomization, and overall engine reliability on your CR250R. The SHINDY Carburetor Kit delivers a complete rebuild solution with OEM-quality components engineered to restore your two-stroke...10031140- SKU:
- 10031140
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- CARBURETOR
$30.95 -
SHINDY Carburetor Repair Kit - CR500R 03-7A5
SHINDY
$26.95A carburetor operating outside factory specifications will bleed performance and create inconsistent throttle response—especially critical on high-demand engines like the CR500R. This complete rebuild kit restores your OEM carburetor to original...10031201- SKU:
- 10031201
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$26.95Qty in Cart: 0Quantity:Price:$26.95Subtotal: -
SHINDY Carburetor Repair Kit - Suzuki RM85 03-801
SHINDY
$29.95A worn or poorly tuned carburetor robs your RM85 of throttle response and fuel efficiency. This complete Shindy repair kit gives you all the genuine components needed to restore your OEM carb to factory specifications—without the downtime and cost of...10031202- SKU:
- 10031202
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- CARBURETOR
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$29.95
