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 Main Jet #330 - 4-Pack 4/042-330
MIKUNI
$14.56Fine-tuning your carburetor's fuel delivery is critical to achieving peak performance and reliability, especially in high-demand racing applications. The MIKUNI Main Jet #330 delivers precise...KM4042330- SKU:
- KM4042330
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- FEATURES:
- FOR VM CARBURETORS
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- HEAD TYPE:
- HEX HEAD
- JET SIZE:
- 330
- MATERIAL:
- BRASS
- OVERALL LENGTH:
- 12 MM (0,47')
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- UNITS:
- 4 PACK
- 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
$14.56 -
MIKUNI Main Jet #340 - 4-Pack 4/042-340
MIKUNI
$5.20Tuning your Mikuni carburetor requires precision—and a mismatched main jet will cost you performance, throttle response, and reliability. This 4-pack of OEM-specification #340 main jets ensures your...KM4042340- SKU:
- KM4042340
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD TYPE:
- HEX HEAD
- MATERIAL:
- BRASS
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL LENGTH IMPERIAL:
- 0.47'
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- JET SIZE:
- 340
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- 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
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH METRIC:
- 12 MM
- UNITS:
- 4 PACK
$5.20 -
MIKUNI Main Jet #350 - 4-Pack 4/042-350
MIKUNI
$14.56Precision jetting is the foundation of carburetor tuning—get it wrong, and you're leaving horsepower on the table and risking lean-condition damage. The MIKUNI Main Jet #350 delivers the exact fuel...KM4042350- SKU:
- KM4042350
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OVERALL LENGTH:
- 12 MM (0,47')
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- FEATURES:
- FOR VM CARBURETORS
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL LENGTH IMPERIAL:
- 0.47'
- HEAD TYPE:
- HEX HEAD
- MATERIAL:
- BRASS
- OVERALL LENGTH METRIC:
- 12 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- 4 PACK
- JET SIZE:
- 350
- OVERALL DIAMETER METRIC:
- 6.00 MM
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
$14.56 -
MIKUNI Main Jet #360 - 4-Pack 4/042-360
MIKUNI
$14.56Precise fuel delivery is the foundation of carburetor tuning, and running the correct main jet is non-negotiable for optimal air-fuel ratio across the power band. The MIKUNI #360 main jet delivers...KM4042360- SKU:
- KM4042360
- 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'
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- RIDING STYLE:
- STREET
- HEAD TYPE:
- HEX HEAD
- 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
- JET SIZE:
- 360
- RIDING STYLE:
- ATV
$14.56 -
MIKUNI Super BN Carburetor Series Needle Valve Assembly 786-35015-1.5
MIKUNI
$24.15A properly functioning needle valve assembly is critical to precise fuel metering in any Super BN carburetor setup—lean mixture issues, hesitation, and flooding all trace back to worn or damaged...7863501515- SKU:
- 7863501515
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
$24.15 -
MIKUNI Super BN Carburetor Series Needle Valve Assembly 786-35015-2.0
MIKUNI
$24.15A worn or damaged needle valve directly compromises fuel delivery precision, leading to poor throttle response and unstable idle conditions. This genuine Mikuni needle and seat assembly restores the...7863501520- SKU:
- 7863501520
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
$24.15 -
MIKUNI Standard BN Carburetor Series Needle and Seat VM26/26-2.0
MIKUNI
$24.15The needle and seat assembly is the critical flow-control component in your Mikuni carburetor—wear or contamination here directly impacts fuel delivery precision and engine idle quality. A worn...VM262620- SKU:
- VM262620
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$24.15 -
MOOSE RACING Air Filter - Kawasaki 1-40-40
MOOSE RACING
$26.95A quality air filter is your engine's first line of defense against contamination that degrades performance and shortens engine life. The MOOSE RACING 1-40-40 employs a proven dual-foam construction...M7614040- SKU:
- M7614040
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- BASE COLOR:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- WHITE
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$26.95 -
MOOSE RACING Air Filter - KX125/250 '92-'93 1-40-43
MOOSE RACING
$29.95A clogged or poorly sealed air filter kills power and invites engine damage—especially on high-revving two-strokes like the KX125/250. The MOOSE RACING Air Filter delivers the dual-foam protection...M7614043- SKU:
- M7614043
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- BASE COLOR:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$29.95Qty in Cart: 0Quantity:Price:$29.95Subtotal: -
MOOSE RACING Air Filter - KX125/250 '94-'06 1-40-44
MOOSE RACING
$29.95When you're pushing a KX125 or KX250 to the limit, a compromised air filter means contaminated fuel mixture and lost horsepower at the worst moment. MOOSE Racing's dual-foam design traps everything...M7614044- SKU:
- M7614044
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- BASE COLOR:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
$29.95 -
MOOSE RACING Air Filter - RMX '89-'98 1-40-90
MOOSE RACING
$26.95Dirt and dust ingestion kills engine performance and longevity—especially on the track or trail. The MOOSE RACING Air Filter for RMX '89-'98 models combines dual-layer foam construction with a...M7614090- SKU:
- M7614090
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- BASE COLOR:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
$26.95 -
MOOSE RACING Air Filter 1-50-04
MOOSE RACING
$26.95Engine air quality directly impacts horsepower, throttle response, and engine longevity. The MOOSE RACING 1-50-04 delivers superior filtration across a dual-foam design that traps both large debris...M7615004- SKU:
- M7615004
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- BASE COLOR:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
$26.95 -
MOOSE RACING Air Filter - KTM 50 '01-'08 1-50-05
MOOSE RACING
$6.95A quality air filter is non-negotiable for KTM 50 performance—it directly impacts throttle response, engine longevity, and fuel efficiency. The MOOSE RACING Air Filter uses a proven two-layer foam...M7615005- SKU:
- M7615005
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- COLOR/FINISH:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BASE COLOR:
- WHITE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$6.95 -
MOOSE RACING Air Filter - KTM 2-Stroke '82-'97 1-50-40
MOOSE RACING
$29.95A properly sealed, efficient air filter is non-negotiable for 2-stroke performance—it directly impacts throttle response, fuel economy, and engine longevity. The MOOSE RACING Air Filter for KTM...M7615040- SKU:
- M7615040
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$29.95 -
MOOSE RACING Air Filter - KTM 2-Stroke/4-Stroke '98-'03 1-50-42
MOOSE RACING
$29.95A quality air filter is non-negotiable for 2-stroke and 4-stroke performance—it's the first line of defense against abrasive particles that degrade engine efficiency and longevity. The MOOSE RACING...M7615042- SKU:
- M7615042
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- COLOR/FINISH:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BASE COLOR:
- WHITE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$29.95 -
MOOSE RACING Air Filter - KTM 1-50-43
MOOSE RACING
$29.95A properly sealed air filter is critical to engine longevity and peak performance—dirty air causes premature wear and power loss. The MOOSE RACING Air Filter delivers dual-layer foam filtration that...M7615043- SKU:
- M7615043
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
- BASE COLOR:
- WHITE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$29.95 -
MOOSE RACING Air Filter - Suzuki 1-70-02
MOOSE RACING
$26.95A quality air filter is your engine's first line of defense against contamination, and the MOOSE RACING Air Filter for Suzuki delivers dual-layer protection without sacrificing airflow. The two-stage...M7617002- SKU:
- M7617002
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- UNITS:
- EACH
- BASE COLOR:
- WHITE
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- AIR FILTER
- COLOR/FINISH:
- YELLOW
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- OFF-ROAD
$26.95 -
MOOSE RACING Air Filter - RM125/250 '87-'89 1-70-41
MOOSE RACING
$26.95A clogged or poorly sealed air filter costs you power and reliability on the track. The MOOSE RACING Air Filter delivers dual-layer foam protection that traps both large debris and fine dust while...M7617041- SKU:
- M7617041
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- COLOR/FINISH:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- BASE COLOR:
- WHITE
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
$26.95 -
K&L SUPPLY Carburetor Repair Kit 182405
K&L SUPPLY
$30.95A carburetor that runs rough, hesitates, or floods is often a symptom of worn gaskets, degraded O-rings, and clogged jets—issues that a quality rebuild kit solves without the cost of replacement. The...182405- SKU:
- 182405
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CARBURETOR
- MATERIAL:
- BRASS
- MATERIAL:
- RUBBER
- MODEL:
- STANDARD
- PRODUCT NAME:
- REPAIR KIT
- UNITS:
- KIT
$30.95 -
K&L SUPPLY Carburetor Repair Kits 18-2408
K&L SUPPLY
$30.95A carburetor that's running rich, leaking fuel, or hesitating on throttle application doesn't need replacement—it needs a proper rebuild. The K&L SUPPLY 18-2408 carburetor repair kit gives you all...182408- SKU:
- 182408
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- RUBBER
- MODEL:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CARBURETOR
- UNITS:
- KIT
- MATERIAL:
- BRASS
- PRODUCT NAME:
- REPAIR KIT
$30.95
