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
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SHINDY Carburetor Repair Kit - Polaris 03-411
SHINDY
$30.95A worn or gummed carburetor is one of the quickest ways to kill your Polaris sled's throttle response and fuel economy. This SHINDY rebuild kit gives you everything needed to restore your OEM carb to factory specifications—without the dealer markup. If...10031104- SKU:
- 10031104
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- REPAIR KIT
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- TYPE:
- CARBURETOR
$30.95 -
SHINDY Carburetor Repair Kit - Polaris 03-412
SHINDY
$38.95A carburetor running lean, rich, or with worn internals will compromise throttle response, fuel economy, and overall engine reliability. The SHINDY 03-412 Repair Kit gives you a complete solution to restore your Polaris carburetor to factory...10031105- SKU:
- 10031105
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- CARBURETOR
$38.95 -
SHINDY Carburetor Repair Kit - Polaris 03-413
SHINDY
$32.95A worn or gummed carburetor will rob your Polaris of throttle response and fuel efficiency—this comprehensive rebuild kit restores your carb to factory specifications with precision-engineered components. SHINDY's award-winning float valves and complete...10031106- SKU:
- 10031106
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- BLACK
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- CARBURETOR
$32.95 -
SHINDY Carburetor Repair Kit - Polaris 03-416
SHINDY
$38.95A carburetor that's out of tune is leaving horsepower on the table and creating inconsistent throttle response across all RPM ranges. The SHINDY 03-416 Repair Kit gives you everything needed to restore your Polaris carburetor to factory specifications—or...10031109- SKU:
- 10031109
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- BLACK
- RIDING STYLE:
- ATV
- TYPE:
- CARBURETOR
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- REPAIR KIT
- UNITS:
- KIT
$38.95 -
MIKUNI Needle and Seat 786-46001-3.0
MIKUNI
$24.15A properly functioning needle and seat assembly is critical to fuel delivery precision and carburetor reliability—without it, you risk fuel starvation, inconsistent jetting, and poor throttle response. The MIKUNI 786-46001-3.0 is a genuine OEM...7864600130- SKU:
- 7864600130
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
$24.15 -
MIKUNI Needle and Seat 786-46001-3.3
MIKUNI
$24.15The needle and seat assembly is the critical control point in your carburetor's fuel delivery system—when it fails or wears, your jetting becomes unpredictable and performance suffers. A genuine Mikuni replacement ensures precise fuel metering and...7864600133- SKU:
- 7864600133
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$24.15 -
MIKUNI Needle and Seat 786-46001-3.5
MIKUNI
$24.15A properly functioning needle and seat assembly is critical to fuel delivery precision in any carbureted engine. The MIKUNI 786-46001-3.5 is an OEM-quality replacement that restores metering accuracy and eliminates fuel seepage that degrades performance...7864600135- SKU:
- 7864600135
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$24.15 -
MIKUNI Jet Needle J8-7DH02
MIKUNI
$10.50Precision fuel mixture control in the mid-range throttle position is critical for consistent performance, whether you're tuning a stock Mikuni carburetor or optimizing a modified engine. The MIKUNI Jet Needle J8-7DH02 delivers the exact atomization...7DH2- SKU:
- 7DH2
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MODEL:
- J8-7DH02
- PRODUCT NAME:
- JET
- RIDING STYLE:
- UTV
- TYPE:
- NEEDLE
$10.50 -
MIKUNI Jet Needle J8-7DH03
MIKUNI
$10.50The MIKUNI Jet Needle J8-7DH03 is essential for fine-tuning your carburetor's mid-range fuel mixture, directly impacting throttle response and engine performance across your power band. If you're running a Mikuni VM-series carburetor and experiencing...7DH3- SKU:
- 7DH3
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- NEEDLE
- MODEL:
- J8-7DH03
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$10.50 -
MIKUNI Jet Needle J8-7DH05
MIKUNI
$10.50Precise mid-range fuel control is the foundation of responsive carburetor tuning, and the MIKUNI Jet Needle J8-7DH05 delivers exactly that. If your Mikuni VM carb is running rich or lean through the throttle's transition zone, a properly matched jet...7DH5- SKU:
- 7DH5
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
- MODEL:
- J8-7DH05
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$10.50 -
MIKUNI Main Jet - #150 - 4-Pack N102221-150
MIKUNI
$14.55If you're tuning a carbureted engine or replacing a worn main jet, the MIKUNI #150 is the precision component you need to dial in your fuel mixture accurately. This OEM-spec jet delivers consistent performance across a range of engine loads and RPMs,...KN102221150- SKU:
- KN102221150
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- JET
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- JET SIZE:
- 150
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- MATERIAL:
- BRASS
- MODEL:
- MIKUNI
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- WATERCRAFT
$14.55 -
MIKUNI Main Jet - #152.5 - 4-Pack N102221-1525
MIKUNI
$14.55Precision fuel delivery is fundamental to carburetor performance, and jet selection directly impacts your engine's air-fuel ratio across the RPM band. The MIKUNI #152.5 main jet delivers the exact fuel metering your carb requires for optimal throttle...KN1022211525- SKU:
- KN1022211525
- 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:
- 152.5
- 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 - #155 - 4-Pack N102221-155
MIKUNI
$5.20If you're tuning a carbureted engine or restoring an OE application, jetting is everything—and a #155 main jet from Mikuni is a precision component that directly affects fuel delivery, throttle response, and overall engine performance. Whether you're...KN102221155- SKU:
- KN102221155
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- JET SIZE:
- 155
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 4 PACK
$5.20 -
MIKUNI Main Jet - #160 - 4-Pack N102221-160
MIKUNI
$5.20If your carburettor is running too lean or you're experiencing flat spots during acceleration, the main jet is likely your culprit. This MIKUNI #160 main jet delivers the precise fuel metering your engine needs for consistent performance across the RPM...KN102221160- SKU:
- KN102221160
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 4 PACK
- JET SIZE:
- 160
$5.20 -
MIKUNI Main Jet - #165 - 4-Pack N102221-165
MIKUNI
$5.20If you're tuning a carbureted engine or replacing a worn main jet, proper fuel metering is critical to maintaining peak performance and engine reliability. The MIKUNI #165 main jet delivers precise fuel delivery for CV and Power Jet carburetors, ensuring...KN102221165- SKU:
- KN102221165
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- MODEL:
- MIKUNI
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- WATERCRAFT
- JET SIZE:
- 165
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- PRODUCT NAME:
- JET
$5.20 -
MIKUNI Main Jet - #175 - 4-Pack N102221-175
MIKUNI
$5.20Proper jetting is fundamental to carburetor performance—too lean and you risk engine damage, too rich and you lose power and fuel efficiency. The MIKUNI #175 main jet delivers the precise fuel metering your engine needs across the RPM band, whether...KN102221175- SKU:
- KN102221175
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- JET SIZE:
- 175
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- MODEL:
- MIKUNI
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- WATERCRAFT
$5.20 -
MIKUNI Main Jet - #180 - 4-Pack N102221-180
MIKUNI
$14.55If you're tuning a Mikuni carburetor for peak performance, jet selection directly impacts your air-fuel mixture and throttle response. The #180 main jet is engineered for specific displacement and load conditions, making it essential for racers and...KN102221180- SKU:
- KN102221180
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- JET
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- JET SIZE:
- 180
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- BRASS
- MODEL:
- MIKUNI
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$14.55 -
MIKUNI Main Jet - #190 - 4-Pack N102221-190
MIKUNI
$5.20If you're tuning a CV or Power Jet carburetor, jet sizing is non-negotiable for achieving the correct air-fuel mixture across your RPM range. The MIKUNI #190 main jet is the OE replacement specification for carburetors originally equipped with an N102...KN102221190- SKU:
- KN102221190
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 4 PACK
- JET SIZE:
- 190
- MODEL:
- MIKUNI
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
$5.20 -
MIKUNI Needle Jet 990-793-004-R-5
MIKUNI
$15.49Fine-tune your carburetor's mid-range performance with genuine Mikuni needle jets. Whether you're chasing precise fuel delivery across the 1/4 to 3/4 throttle range or dialing in your carb for peak efficiency, this OEM component gives you the control you...159R5- SKU:
- 159R5
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- JET SIZE:
- R-5
- MODEL:
- TYPE 159
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- FEATURES:
- FOR VM 30 MM - 36 MM SPIGOT
- PRODUCT NAME:
- JET
- TYPE:
- NEEDLE
$15.49 -
MIKUNI Jet Needle J8-6FJ06
MIKUNI
$10.50Precision fuel mixture control in the mid-range throttle position is critical for consistent performance, whether you're tuning a vintage race bike or optimizing a custom carbureted engine. The MIKUNI Jet Needle J8-6FJ06 delivers the metering accuracy...6FJ6- SKU:
- 6FJ6
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- J8-6FJ06
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- NEEDLE
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$10.50
