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 - KX250 '05-'07 RAD-12J
BOYESEN
$179.95The BOYESEN Radiator Valve optimizes intake charge distribution across your KX250's combustion chamber, delivering sharper throttle response and measurable horsepower gains throughout the entire RPM...10080113- SKU:
- 10080113
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- MATERIAL:
- CARBON FIBER
- MODEL:
- RAD VALVE
- TYPE:
- DUAL STAGE
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
$179.95 -
BOYESEN Radiator Valve - CR250 '05-'07 RAD-02I
BOYESEN
$179.95The BOYESEN Radiator Valve optimizes intake charge distribution across your CR250's cylinder, delivering sharper throttle response and increased horsepower throughout the entire RPM range. By...10080112- SKU:
- 10080112
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- UNITS:
- EACH
- MATERIAL:
- CARBON FIBER
- MODEL:
- RAD VALVE
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
BOYESEN Super Stock Reeds - Fiber - YZ250 SSF332
BOYESEN
$34.95Reeds are the unsung heroes of two-stroke performance—they directly control fuel and air mixture timing, and worn or suboptimal reeds rob you of horsepower across the entire RPM range. The BOYESEN...10080110- SKU:
- 10080110
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REED PETAL
- MODEL:
- SUPER STOCK
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- FIBERGLASS
- UNITS:
- SET
$34.95 -
BOYESEN Super Stock Reeds - Fiber - KX250 SSF212
BOYESEN
$34.95Reed valves are critical to your engine's intake efficiency—when they wear or lose their sealing integrity, you lose power across the entire RPM range. BOYESEN Super Stock Reeds deliver OEM-matched...10080109- SKU:
- 10080109
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- FIBERGLASS
- UNITS:
- SET
$34.95 -
BOYESEN Super Stock Reeds - Fiber - CR250 SSF402
BOYESEN
$34.95Worn or damaged reeds directly rob your CR250 of throttle response and peak power across the entire RPM band. BOYESEN Super Stock Reeds restore factory-matched airflow dynamics while delivering...10080108- SKU:
- 10080108
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- SET
- MATERIAL:
- FIBERGLASS
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- REED PETAL
$34.95 -
BOYESEN Super Stock Reeds - Fiber - CR125 SSF301
BOYESEN
$34.95If you're running a CR125 in competition or high-demand conditions, stock reeds will become your limiting factor—restricting airflow and throttle response when you need them most. BOYESEN Super Stock...10080107- SKU:
- 10080107
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
- MODEL:
- SUPER STOCK
- MATERIAL:
- FIBERGLASS
- RIDING STYLE:
- OFF-ROAD
$34.95Qty in Cart: 0Quantity:Price:$34.95Subtotal: -
BOYESEN Super Stock Reeds - Carbon - YZ250 SSC332
BOYESEN
$50.95Boyesen Super Stock reeds deliver measurable performance gains across your entire RPM range while maintaining the reliability you expect from OEM-matched specifications. Carbon construction extends...10080106- SKU:
- 10080106
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MATERIAL:
- CARBON
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- SUPER STOCK
$50.95Qty in Cart: 0Quantity:Price:$50.95Subtotal: -
BOYESEN Super Stock Reeds - Carbon - KX250 SSC212
BOYESEN
$50.95Reed valves are the heartbeat of two-stroke performance—they control the precise timing of fuel mixture entering the crankcase, directly impacting throttle response, power delivery, and engine...10080105- SKU:
- 10080105
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MODEL:
- SUPER STOCK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- SET
- MATERIAL:
- CARBON
- PRODUCT NAME:
- REED PETAL
$50.95Qty in Cart: 0Quantity:Price:$50.95Subtotal: -
On Sale
BOYESEN Super Stock Reeds - Carbon - CR125 SSC301
BOYESEN
MSRP: $50.95Now: $33.00Was: $50.95Reed valves are the heart of your snowmobile's intake system, and worn or suboptimal reeds directly limit power delivery and throttle response. The BOYESEN Super Stock Reeds deliver OEM-matched...10080103- SKU:
- 10080103
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- SET
- MATERIAL:
- CARBON
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- REED PETAL
MSRP: $50.95Now: $33.00Was: $50.95 -
BOYESEN Pro Series Reed - YZ250 PRO-218
BOYESEN
$62.95If you're looking to unlock measurable gains in throttle response and acceleration on your YZ250, the Boyesen Pro Series Reed delivers the quick piston speed tracking your engine demands. The...10080102- SKU:
- 10080102
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 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 - YZ125 PRO-217
BOYESEN
$62.95If you're chasing peak throttle response and acceleration on your YZ125, reed quality directly impacts your engine's ability to breathe efficiently at every RPM. The Boyesen Pro Series Reed delivers...10080101- SKU:
- 10080101
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MATERIAL:
- CARBON FIBER
- MODEL:
- PRO SERIES
$62.95Qty in Cart: 0Quantity:Price:$62.95Subtotal: -
BOYESEN Pro Series Reed - KX250 PRO-216
BOYESEN
$62.95If you're serious about maximizing your KX250's acceleration and throttle response, reed quality directly impacts your engine's ability to breathe efficiently. The Boyesen Pro Series delivers the...10080100- SKU:
- 10080100
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MATERIAL:
- CARBON FIBER
- MODEL:
- PRO SERIES
- BASE COLOR:
- YELLOW
- 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 - CR250 PRO-215
BOYESEN
$62.95Stock reeds limit your CR250's potential—they can't respond fast enough to aggressive throttle inputs, costing you acceleration and mid-range punch. The Boyesen Pro Series Reed delivers the quickest...10080099- SKU:
- 10080099
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- REED PETAL
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- UNITS:
- SET
$62.95Qty in Cart: 0Quantity:Price:$62.95Subtotal: -
BOYESEN Pro Series Reed - CR125 PRO-214
BOYESEN
$62.95If you're serious about maximizing your CR125's acceleration and throttle response, the Boyesen Pro Series Reed delivers the speed and precision you need to stay competitive. The dual-stage reed...10080098- SKU:
- 10080098
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MATERIAL:
- CARBON FIBER
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- REED PETAL
$62.95 -
BOYESEN Power Reeds - YZ250/X 6131
BOYESEN
$39.95Stock reed valves limit your YZ250/X's potential across the RPM band, forcing you to choose between low-end response and top-end power. The Boyesen Power Reeds solve this with a dual-stage design...10080097- SKU:
- 10080097
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- BASE COLOR:
- YELLOW
- UNITS:
- SET
- PRODUCT NAME:
- REED PETAL
- MODEL:
- POWER REED
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- FIBERGLASS
- TYPE:
- DUAL STAGE
$39.95 -
BOYESEN Power Reeds - YZ125 '05-'16 6130
BOYESEN
$39.95The stock reed valve is often the bottleneck limiting your YZ125's power delivery—especially across the mid-to-high RPM range where you need every bit of performance. Boyesen's dual-stage power reeds...10080096- SKU:
- 10080096
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- POWER REED
$39.95 -
BOYESEN Power Reeds - KX250 '05-'07 6129
BOYESEN
$39.95Your KX250's stock reed valve assembly limits peak power delivery and throttle response across the RPM band. Boyesen's patented dual-stage Power Reed design splits the workload between two engineered...10080095- SKU:
- 10080095
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MODEL:
- POWER REED
- RIDING STYLE:
- OFF-ROAD
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
BOYESEN Power Reeds - CR250 '05-'07 6128
BOYESEN
$39.95Stock reed valves limit your CR250's potential across the RPM band, forcing you to choose between low-end responsiveness and high-RPM power. Boyesen's dual-stage design eliminates this compromise by...10080094- SKU:
- 10080094
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- POWER REED
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
BOYESEN Power Reeds - CR125 '05-'07 6127
BOYESEN
$39.95Stock reed valves limit your CR125's potential across the RPM band, forcing you to choose between low-end response and high-RPM power. Boyesen's dual-stage Power Reed design eliminates that...10080093- SKU:
- 10080093
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- MODEL:
- POWER REED
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- PRODUCT NAME:
- REED PETAL
$39.95 -
BOYESEN Power Reeds - Polaris/Eton/Kasea 6108
BOYESEN
$28.95Stock reed valves limit your engine's breathing potential, choking performance at both low and high RPMs. Boyesen Power Reeds solve this with a patented dual-stage design that optimizes throttle...10080092- SKU:
- 10080092
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MODEL:
- POWER REED
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- SET
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- TYPE:
- DUAL STAGE
$28.95
