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 Pro Series Reed - RM125 '99-'00 PRO125
BOYESEN
$62.95If you're running a RM125 and want measurable gains in throttle response and acceleration, upgrading to a quality reed valve system is one of the highest-ROI modifications available. The Boyesen Pro Series delivers the quick spool characteristics you...PRO125- SKU:
- PRO125
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- PRO SERIES
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- UNITS:
- SET
$62.95 -
BOYESEN Pro Series Reed - KX250 '99 PRO124
BOYESEN
$62.95If you're running a KX250 two-stroke, your reed valve is the gatekeeper of power—and a sluggish reed means you're leaving horsepower on the table. The Boyesen Pro Series Reed responds instantly to piston speed changes, delivering the crisp throttle...PRO124- SKU:
- PRO124
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
$62.95 -
BOYESEN Pro Series Reed for RAD-24F PSR122
BOYESEN
$64.95If you're serious about extracting maximum horsepower from your RAD-24F PSR122, throttle response and acceleration are non-negotiable. The BOYESEN Pro Series Reed delivers the fastest spool-up and most accurate piston tracking available, giving you the...PRO122- SKU:
- PRO122
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- REED PETAL
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MATERIAL:
- CARBON FIBER
$64.95 -
BOYESEN Pro Series Reed for RAD-01D PSR121
BOYESEN
$64.95Reed valve performance directly impacts throttle response and acceleration in high-RPM applications, making it one of the most critical tuning components in your intake system. The Boyesen Pro Series Reed combines cutting-edge carbon fiber technology...PRO121- SKU:
- PRO121
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- REPLACEMENT REED FOR RAD01D/01E
$64.95 -
BOYESEN Pro Series Reed for RAD-02C PSR120
BOYESEN
$64.95If you're running a RAD-02C PSR120 intake system, reed valve performance directly impacts throttle response, power delivery, and overall engine efficiency. The Boyesen Pro Series Reed delivers the precise flow control you need to extract maximum...PRO120- SKU:
- PRO120
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- REED PETAL
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MATERIAL:
- CARBON FIBER
$64.95 -
BOYESEN Pro Series Reed for RAD01B PSR12
BOYESEN
$64.95If you're running a RAD01B and want measurable gains in throttle response and acceleration, the Boyesen Pro Series Reed delivers the precision your engine demands. The dual-stage design adapts instantly to piston speed changes, giving you consistent...PRO12- SKU:
- PRO12
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MATERIAL:
- CARBON FIBER
- MODEL:
- PRO SERIES
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
$64.95 -
BOYESEN Pro Series Reed for RAD-34E PSR119
BOYESEN
$64.95The Boyesen Pro Series Reed elevates your RAD-34E PSR119 with precision throttle response and measurable acceleration gains. Using carbon fiber construction paired with a durable fiberglass/epoxy bottom reed, this dual-stage design delivers the...PRO119- SKU:
- PRO119
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
$64.95 -
BOYESEN Pro Series Reed for RAD-33D PSR118
BOYESEN
$64.95If you're running a RAD-33D PSR118 and leaving performance on the table, your reed valve is the culprit. The Boyesen Pro Series Reed delivers the throttle response and power band consistency that separates competitive machines from the rest—thanks to its...PRO118- SKU:
- PRO118
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- REED PETAL
$64.95 -
BOYESEN Pro Series Reed for RAD-12D PSR116
BOYESEN
$64.95Reed valve performance directly impacts throttle response and acceleration—cheap or worn reeds leave horsepower on the table. The Boyesen Pro Series Reed delivers the dual-stage design and carbon fiber construction that serious racers depend on for...PRO116- SKU:
- PRO116
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MATERIAL:
- CARBON FIBER
- MODEL:
- PRO SERIES
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
BOYESEN Pro Series Reed for RAD-11F PSR115
BOYESEN
$64.95Reed valve performance directly impacts throttle response, acceleration, and overall engine efficiency on your two-stroke. The BOYESEN Pro Series PSR115 delivers the precision timing your engine demands, using a dual-stage design that tracks piston speed...PRO115- SKU:
- PRO115
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
BOYESEN Pro Series Reed - KTM PRO114
BOYESEN
$62.95Reed valve performance directly impacts throttle response and acceleration in 2-stroke engines—cheap or worn reeds cost you horsepower and crisp low-end bite. The Boyesen Pro Series Reed delivers the quick response you need for competitive racing or...PRO114- SKU:
- PRO114
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MODEL:
- PRO SERIES
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
$62.95Qty in Cart: 0Quantity:Price:$62.95Subtotal: -
BOYESEN Pro Series Reed - KTM125/200 PRO113
BOYESEN
$62.95Reed valve performance directly impacts throttle response, acceleration, and peak horsepower on 2-stroke engines—and the Boyesen Pro Series Reed delivers measurable gains across all three. By pairing a high-tech carbon fiber top reed with a reinforced...PRO113- SKU:
- PRO113
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MATERIAL:
- CARBON FIBER
- MODEL:
- PRO SERIES
$62.95 -
BOYESEN Pro Series Reed - KTM 65 PRO112
BOYESEN
$52.95The Boyesen Pro Series Reed delivers measurable improvements in throttle response and acceleration by quickly adapting to piston speed changes—essential for competitive racing and demanding trail riding. High-tech carbon fiber construction combined with...PRO112- SKU:
- PRO112
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- PRODUCT NAME:
- REED PETAL
- MATERIAL:
- CARBON FIBER
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
$52.95 -
BOYESEN Pro Series Reed - CR250 '99-'00 PRO111
BOYESEN
$62.95If you're running a CR250 and want to unlock faster throttle response with genuine acceleration gains, the Boyesen Pro Series Reed delivers the precision your engine demands. The dual-stage carbon fiber and fiberglass design maximizes horsepower and...PRO111- SKU:
- PRO111
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- OFF-ROAD
$62.95 -
BOYESEN Pro Series Reed - KTM 250 PRO11
BOYESEN
$62.95If you're running a KTM 250 and want measurable gains in throttle response and acceleration, reed quality directly impacts your engine's breathing efficiency. The Boyesen Pro Series delivers quick piston speed response through a dual-stage carbon fiber...PRO11- SKU:
- PRO11
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 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 - CR250 PRO02
BOYESEN
$62.95If you're running a CR250 and want to extract every ounce of performance from your engine, your reed valves are where it starts. The Boyesen Pro Series delivers the throttle response and acceleration you need to stay competitive, with a dual-stage design...PRO02- SKU:
- PRO02
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- REED PETAL
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- BASE COLOR:
- YELLOW
- UNITS:
- SET
- MATERIAL:
- CARBON FIBER
$62.95Qty in Cart: 0Quantity:Price:$62.95Subtotal: -
BOYESEN Pro Series Reed - CR125 PRO01
BOYESEN
$62.95If you're running a CR125 at the track, reed design directly impacts your power delivery and throttle response. The Boyesen Pro Series Reed eliminates the lag that costs you tenths on the clock by responding instantly to piston speed changes, giving you...PRO01- SKU:
- PRO01
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- RIDING STYLE:
- OFF-ROAD
$62.95 -
BOYESEN Racing Reed - RM250 '01 699
BOYESEN
$39.95Boyesen Racing Reeds deliver measurable flow improvements across your entire power band, translating to faster acceleration and more responsive throttle feel from launch to redline. Laboratory flow analysis confirms that the dual-stage reed design...699- SKU:
- 699
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- MODEL:
- POWER REED
- TYPE:
- DUAL STAGE
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
BOYESEN Racing Reed - RM125 '01-'02 698
BOYESEN
$39.95Boyesen Racing Reeds optimize your RM125's breathing efficiency across the entire RPM band, translating directly to sharper throttle response and stronger mid-range power. Laboratory flow analysis confirms that Boyesen's dual-stage design permits greater...698- SKU:
- 698
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- MODEL:
- POWER REED
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- OFF-ROAD
$39.95 -
BOYESEN Racing Reed - YZ125 '01-'02 697
BOYESEN
$39.95Reed valve performance directly impacts your YZ125's throttle response and overall engine efficiency across the entire RPM range. Boyesen's dual-stage reed design has been laboratory-validated to outflow standard reeds, delivering measurable gains in...697- SKU:
- 697
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- TYPE:
- DUAL STAGE
- MODEL:
- POWER REED
- RIDING STYLE:
- OFF-ROAD
$39.95
