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 Needle and Seat VM28/163-2.0
MIKUNI
$24.15The needle and seat assembly is the critical control point in your carburetor's fuel delivery system—wear or degradation here directly impacts your air-fuel mixture precision and engine response. Genuine Mikuni components maintain the exacting tolerances...VM2816320- SKU:
- VM2816320
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$24.15 -
MIKUNI Needle and Seat VM28/163-2.5
MIKUNI
$24.15A worn or damaged needle and seat directly compromises fuel metering precision, leading to lean conditions, hesitation, and unreliable idle quality. This genuine Mikuni assembly restores proper fuel flow control and carburetor response, critical for...VM2816325- SKU:
- VM2816325
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$24.15 -
MIKUNI Needle and Seat VM28/511-1.8
MIKUNI
$24.15The needle and seat assembly is the critical metering component in your carburetor—it directly controls fuel flow and atomization, which means it impacts throttle response, fuel efficiency, and engine stability. A worn or damaged needle and seat will...VM2851118- SKU:
- VM2851118
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$24.15 -
MIKUNI Needle and Seat VM28/511-2.0
MIKUNI
$24.15A worn or damaged needle and seat assembly compromises fuel atomization and carburetor response, directly impacting throttle precision and engine reliability. The Mikuni VM28/511-2.0 restores OEM-specification fuel delivery with Japanese manufacturing...VM2851120- SKU:
- VM2851120
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$24.15 -
MIKUNI Pilot Jet - 4-Pack BS30/96-50
MIKUNI
$5.20Precise fuel atomization directly impacts throttle response and low-end performance in carbureted applications. OEM pilot jets gradually wear and restrict fuel flow, causing flat spots and hesitation during initial acceleration. These genuine MIKUNI...KBS309650- SKU:
- KBS309650
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- JET SIZE:
- 50
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- BRASS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ATV
- TYPE:
- PILOT
$5.20 -
MIKUNI Pilot Jet - 4-Pack BS30/96-52.5
MIKUNI
$5.20Precise fuel metering is critical to carburetor performance, and a worn or incorrect pilot jet directly impacts idle quality, throttle response, and fuel economy. This OEM-specification Mikuni pilot jet ensures your BS-series carb delivers the correct...KBS3096525- SKU:
- KBS3096525
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- JET SIZE:
- 52.5
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- PILOT
- UNITS:
- 4 PACK
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- BASE COLOR:
- BRASS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
$5.20 -
MIKUNI Pilot Jet - 4-Pack BS30/96-57.5
MIKUNI
$5.20Precise fuel metering is the foundation of carburetor tuning, and a worn or incorrect pilot jet directly impacts cold starts, idle stability, and low-rpm throttle response. This 4-pack of OEM-spec Mikuni pilot jets ensures you have the right sizing on...KBS3096575- SKU:
- KBS3096575
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE COLOR:
- BRASS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- PILOT
- UNITS:
- 4 PACK
- JET SIZE:
- 57.5
- RIDING STYLE:
- OFF-ROAD
$5.20 -
MIKUNI Air Jet #0.5 - 4-Pack BS30/97-0.5
MIKUNI
$14.55Achieving the perfect fuel-air mixture is critical for engine performance, throttle response, and reliability—and that's where air jets make the difference. The MIKUNI #0.5 air jet provides precise metering control for fine-tuning your carburetor setup,...KBS309705- SKU:
- KBS309705
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 0.5
- BASE COLOR:
- BRASS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 4 PACK
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- AIR
$14.55 -
MIKUNI Needle Jet VM38/41-P-4
MIKUNI
$15.49Fine-tuning your carburettor's mid-range performance requires precision, and the MIKUNI Needle Jet VM38/41-P-4 gives you exactly that. This genuine Mikuni component allows you to dial in your air-fuel mixture at the 1/4 to 3/4 throttle range—the most...247P4- SKU:
- 247P4
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- FEATURES:
- FOR OE YAMAHA
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- JET SIZE:
- P-4
- MODEL:
- TYPE 247
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- NEEDLE
$15.49 -
MIKUNI Needle Jet VM38/41-P-6
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance starts with the right needle jet. The MIKUNI VM38/41-P-6 gives you precise control over fuel delivery in the critical 1/4 to 3/4 throttle range—the zone where most real-world riding happens. If your...247P6- SKU:
- 247P6
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- JET SIZE:
- P-6
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- FEATURES:
- FOR OE YAMAHA
- MODEL:
- TYPE 247
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$15.49 -
MIKUNI Needle Jet VM38/41-Q-0
MIKUNI
$15.49Fine-tuning your carburettor's mid-range performance requires precision, and the MIKUNI Needle Jet VM38/41-Q-0 delivers exactly that. This genuine Mikuni component lets you dial in optimal fuel delivery across the critical 1/4 to 3/4 throttle range—the...247Q0- SKU:
- 247Q0
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- MODEL:
- TYPE 247
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- FEATURES:
- FOR OE YAMAHA
- JET SIZE:
- Q-0
- TYPE:
- NEEDLE
$15.49 -
MIKUNI Needle Jet VM38/41-Q-2
MIKUNI
$15.49Fine-tuning your carburetor's mid-range response requires precision—and the MIKUNI Needle Jet VM38/41-Q-2 delivers exactly that. This genuine Mikuni component gives you direct control over fuel delivery at 1/4 to 3/4 throttle, where most of your riding...247Q2- SKU:
- 247Q2
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- FEATURES:
- FOR OE YAMAHA
- RIDING STYLE:
- SNOW
- MODEL:
- TYPE 247
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- JET SIZE:
- Q-2
- PRODUCT NAME:
- JET
- RIDING STYLE:
- UTV
- TYPE:
- NEEDLE
$15.49Qty in Cart: 0Quantity:Price:$15.49Subtotal: -
MIKUNI Needle Jet VM38/41-Q-4
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance requires precision, and the MIKUNI Needle Jet VM38/41-Q-4 delivers exactly that. This genuine Mikuni component gives you direct control over fuel delivery during the critical 1/4 to 3/4 throttle range,...247Q4- SKU:
- 247Q4
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- TYPE:
- NEEDLE
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- FEATURES:
- FOR OE YAMAHA
- JET SIZE:
- Q-4
- MODEL:
- TYPE 247
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$15.49 -
On Sale
MIKUNI Needle Jet VM38/41-Q-6
MIKUNI
MSRP: $14.95Now: $10.00Was: $14.95Fine-tuning your carburettor's mid-range performance requires precision, and the MIKUNI Needle Jet VM38/41-Q-6 delivers exactly that. This genuine Mikuni component gives you direct control over fuel delivery between 1/4 and 3/4 throttle opening—the RPM...247Q6- SKU:
- 247Q6
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- NEEDLE
- JET SIZE:
- Q-6
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- FEATURES:
- FOR OE YAMAHA
- MODEL:
- TYPE 247
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
MSRP: $14.95Now: $10.00Was: $14.95Qty in Cart: 0Quantity:Price:MSRP: $14.95Now: $10.00Was: $14.95Subtotal: -
MIKUNI Needle Jet VM38/41-R-0
MIKUNI
$15.49Fine-tuning your carburetor's mid-range performance requires precision, and a worn or mismatched needle jet will leave you guessing at the throttle. The MIKUNI Needle Jet VM38/41-R-0 gives you direct control over fuel atomization in the critical 1/4 to...247R0- SKU:
- 247R0
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- FEATURES:
- FOR OE YAMAHA
- JET SIZE:
- R-0
- RIDING STYLE:
- STREET
- MODEL:
- TYPE 247
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- NEEDLE
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$15.49 -
MIKUNI Pilot Jet #80 4-Pack VM22/210-80
MIKUNI
$14.55A properly sized pilot jet is essential for smooth idle quality, crisp throttle response, and predictable fueling across low-speed operation. Running an undersized or worn pilot jet leads to hesitation, poor cold starts, and difficult tuning. This...KM580- SKU:
- KM580
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE COLOR:
- BRASS
- FEATURES:
- FOR VM CARBURETORS
- JET SIZE:
- 80
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- HEAD DIAMETER METRIC:
- 4.00 MM
- OVERALL LENGTH METRIC:
- 14.00 MM
- TYPE:
- PILOT
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$14.55 -
MIKUNI Main Jet - #170 - 4-Pack N102221-170
MIKUNI
$14.55If you're tuning a carbureted engine for peak performance, jetting is everything—and a precise main jet is non-negotiable. The MIKUNI #170 main jet delivers the exact fuel metering your CV or Power Jet carburetor needs to maintain optimal air-fuel ratio...KN102221170- SKU:
- KN102221170
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- JET SIZE:
- 170
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Main Jet - #195 - 4-Pack N102221-195
MIKUNI
$14.55Upgrading your main jet is one of the most direct ways to dial in your carburetor's fuel delivery and unlock performance gains across your powerband. The MIKUNI #195 main jet provides precise fuel metering for CV and Power Jet carburetors, ensuring...KN102221195- SKU:
- KN102221195
- 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:
- MAIN
- UNITS:
- 4 PACK
- JET SIZE:
- 195
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$14.55 -
MIKUNI Main Jet - #92.5 - 4-Pack N102221-925
MIKUNI
$5.20Fine-tuning your carburetor's fuel delivery is critical to achieving optimal performance and throttle response. The MIKUNI #92.5 Main Jet directly controls the fuel mixture under load, and running the correct size ensures your engine isn't running lean...KN102221925- SKU:
- KN102221925
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- JET SIZE:
- 92.5
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
$5.20 -
MIKUNI Main Jet - #97.5 - 4-Pack N102221-975
MIKUNI
$5.20Fine-tuning your carburetor's fuel delivery is critical for optimal performance and throttle response across your RPM range. The MIKUNI #97.5 main jet delivers precise fuel metering for engines that demand exact calibration—whether you're running stock...KN102221975- SKU:
- KN102221975
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- JET SIZE:
- 97.5
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- MIKUNI
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- BRASS
$5.20
