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
-
BOYESEN Radiator Valve - KX125 '98 RAD11E
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD11E- SKU:
- RAD11E
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
- MODEL:
- RAD VALVE
- UNITS:
- EACH
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- COLOR/FINISH:
- SILVER
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
BOYESEN Radiator Valve - KX125 '95-'97 RAD11D
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD11D- SKU:
- RAD11D
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- MODEL:
- RAD VALVE
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
BOYESEN Radiator Valve - KX125 RAD-11A
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD11A- SKU:
- RAD11A
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- MODEL:
- RAD VALVE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- COLOR/FINISH:
- SILVER
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- REED CAGE ASSEMBLY
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
BOYESEN Radiator Valve - KX125 '88-'91 RAD-11
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD11- SKU:
- RAD11
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MODEL:
- RAD VALVE
- TYPE:
- DUAL STAGE
- UNITS:
- EACH
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- SILVER
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REED CAGE ASSEMBLY
$179.95 -
BOYESEN Radiator Valve - KX80 '91-'97 RAD10A
BOYESEN
$169.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD10A- SKU:
- RAD10A
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
- MODEL:
- RAD VALVE
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- REED CAGE ASSEMBLY
$169.95Qty in Cart: 0Quantity:Price:$169.95Subtotal: -
BOYESEN Radiator Valve - Honda ATV RAD04A
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD04A- SKU:
- RAD04A
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
- MODEL:
- RAD VALVE
- RIDING STYLE:
- ATV
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- REED CAGE ASSEMBLY
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
BOYESEN Radiator Valve - CR500 '90-'01 RAD03A
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD03A- SKU:
- RAD03A
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- TYPE:
- DUAL STAGE
- COLOR/FINISH:
- SILVER
- MODEL:
- RAD VALVE
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
$179.95 -
BOYESEN Radiator Valve - CR250 '02 RAD-02F
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD02F- SKU:
- RAD02F
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- SILVER
- MODEL:
- RAD VALVE
- UNITS:
- EACH
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- TYPE:
- DUAL STAGE
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
$179.95 -
BOYESEN Radiator Valve - CR250 '00 RAD02D
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD02D- SKU:
- RAD02D
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- MODEL:
- RAD VALVE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- COLOR/FINISH:
- SILVER
- UNITS:
- EACH
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
$179.95 -
BOYESEN Radiator Valve - CR250 '99 RAD02C
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD02C- SKU:
- RAD02C
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- MODEL:
- RAD VALVE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- COLOR/FINISH:
- SILVER
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- REED CAGE ASSEMBLY
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
BOYESEN Radiator Valve - CR250 '86-'98 RAD02B
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD02B- SKU:
- RAD02B
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- MODEL:
- RAD VALVE
- UNITS:
- EACH
$179.95 -
BOYESEN Radiator Valve - CR125 '02 RAD-01G
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD01G- SKU:
- RAD01G
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- MATERIAL:
- ALUMINUM
- COLOR/FINISH:
- SILVER
- MODEL:
- RAD VALVE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- UNITS:
- EACH
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
BOYESEN Radiator Valve - CR125 '01 RAD01F
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD01F- SKU:
- RAD01F
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
- MODEL:
- RAD VALVE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- REED CAGE ASSEMBLY
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
BOYESEN Radiator Valve - CR125 '00 RAD01E
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD01E- SKU:
- RAD01E
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
- MODEL:
- RAD VALVE
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- REED CAGE ASSEMBLY
$179.95 -
BOYESEN Radiator Valve - CR125 '92-'97 RAD01B
BOYESEN
$179.95Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports, Provide quicker, sharper throttle response and more horsepower throughout rpm range,...RAD01B- SKU:
- RAD01B
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MODEL:
- RAD VALVE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- COLOR/FINISH:
- SILVER
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
BOYESEN Radiator Valve - CR125 '88-'91 RAD-01A
BOYESEN
$179.95The BOYESEN Radiator Valve optimizes intake charge distribution across all cylinders, delivering sharper throttle response and measurable horsepower gains throughout your RPM range. By maintaining...RAD01- SKU:
- RAD01
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- COLOR/FINISH:
- SILVER
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- MATERIAL:
- CARBON FIBER
- MODEL:
- RAD VALVE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- UNITS:
- EACH
$179.95 -
BOYESEN Pro Series Reed - CR125 PRO-98
BOYESEN
$62.95If you're chasing faster throttle response and peak horsepower on your CR125, reed quality directly impacts your power delivery. The Boyesen Pro Series uses a proven dual-stage design that adapts...PRO98- SKU:
- PRO98
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MATERIAL:
- CARBON FIBER
- MODEL:
- PRO SERIES
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
$62.95Qty in Cart: 0Quantity:Price:$62.95Subtotal: -
BOYESEN Pro Series Reed - RM250 PRO-97
BOYESEN
$62.95Reed valve response directly impacts throttle control and acceleration in high-RPM environments—and the BOYESEN Pro Series Reed delivers the quickest response in the category. By pairing a...PRO97- SKU:
- PRO97
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
- MATERIAL:
- CARBON FIBER
- MODEL:
- PRO SERIES
$62.95 -
BOYESEN Pro Series Reed for RAD11D PSR96
BOYESEN
$64.95A reed valve's responsiveness directly impacts your engine's ability to accelerate cleanly and maintain consistent power delivery across the RPM range. The BOYESEN Pro Series Reed combines...PRO96- SKU:
- PRO96
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
- BASE COLOR:
- YELLOW
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
BOYESEN Pro Series Reed for RAD02B PSR-91
BOYESEN
$64.95Reed valve performance directly impacts throttle response, acceleration, and overall engine efficiency—especially in high-RPM applications where every millisecond counts. The Boyesen Pro Series Reed...PRO91- SKU:
- PRO91
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
- MODEL:
- PRO SERIES
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal:
