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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BOYESEN Pro Series Reed for RAD-24E PSR106
BOYESEN
$64.95A reed valve that actually delivers measurable performance gains, the BOYESEN Pro Series responds instantly to throttle input by precisely matching piston speed changes—eliminating the sluggish hesitation that costs you acceleration and top-end power. If...PRO106- SKU:
- PRO106
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- OFF-ROAD
$64.95 -
On Sale
BOYESEN Pro Series Reed for RAD21D PSR105
BOYESEN
MSRP: $64.95Now: $42.00Was: $64.95A reed valve is your engine's gatekeeper—it controls the precise timing of fuel and air mixture entering the combustion chamber, directly impacting throttle response and power delivery. The Boyesen Pro Series PSR105 combines carbon fiber technology with...PRO105- SKU:
- PRO105
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- REED PETAL
- MATERIAL:
- CARBON FIBER
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
MSRP: $64.95Now: $42.00Was: $64.95 -
BOYESEN Pro Series Reed - KTM PSR102
BOYESEN
$64.95Reed valve performance directly impacts throttle response and acceleration in 2-stroke engines—a sluggish reed design costs you both horsepower and lap time. The Boyesen Pro Series Reed delivers the responsiveness you need by reacting instantly to piston...PRO102- SKU:
- PRO102
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
BOYESEN Pro Series Reed for RAD-01C PSR100
BOYESEN
$64.95If you're chasing peak throttle response and acceleration, reed valve performance is non-negotiable—and the BOYESEN Pro Series Reed delivers the speed and precision you need to outpace the competition. The dual-stage carbon fiber construction responds...PRO100- SKU:
- PRO100
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- REPLACEMENT REED FOR RAD01B/01C
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
$64.95 -
BOYESEN Pro Series Reed - YZ125 PRO08
BOYESEN
$62.95If you're running a YZ125 and want measurable gains in throttle response and acceleration, the Boyesen Pro Series Reed delivers real performance improvements where it matters most—at the intake. The dual-stage carbon fiber and fiberglass design responds...PRO08- SKU:
- PRO08
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
- MODEL:
- PRO SERIES
$62.95 -
BOYESEN Pro Series Reed - RM250 '96 PRO07
BOYESEN
$62.95If you're running an RM250 and leaving performance on the table, your reed valve design is likely the culprit. The Boyesen Pro Series Reed delivers the throttle response and peak power output that separates competitive racers from the field, thanks to a...PRO07- SKU:
- PRO07
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
$62.95 -
BOYESEN Pro Series Reed - RM250 '93-'95 PRO06
BOYESEN
$62.95If you're running a RM250 two-stroke, your reed valve is the gateway to peak performance—and a worn or poorly designed reed will cost you horsepower, throttle response, and consistency at the line. The Boyesen Pro Series Reed delivers the quick intake...PRO06- SKU:
- PRO06
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- CARBON FIBER
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
$62.95Qty in Cart: 0Quantity:Price:$62.95Subtotal: -
BOYESEN Pro Series Reed - RM125 PRO05
BOYESEN
$62.95If you're serious about extracting maximum performance from your RM125, your reed valve design is the limiting factor holding back acceleration and power. The Boyesen Pro Series Reed transforms throttle response by reacting instantly to piston speed...PRO05- SKU:
- PRO05
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
$62.95Qty in Cart: 0Quantity:Price:$62.95Subtotal: -
BOYESEN Pro Series Reed - KX250/ATV PRO04
BOYESEN
$69.95If you're running a KX250 or competitive ATV and need throttle response that actually matches your input, reed quality is non-negotiable. The Boyesen Pro Series delivers the fastest piston speed tracking in its class, translating directly to acceleration...PRO04- SKU:
- PRO04
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- CARBON FIBER
- MODEL:
- PRO SERIES
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
BOYESEN Quickshot 2 APC-2
BOYESEN
$95.95Throttle hesitation and engine bog kill performance when you need it most. The BOYESEN Quickshot 2 APC-2 eliminates that delay with a patent-pending design that delivers instant response to every throttle input, giving you crisp acceleration from idle...10500154- SKU:
- 10500154
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MODEL:
- QUICKSHOT
- TYPE:
- ACCELERATOR PUMP
- UNITS:
- EACH
- MODEL:
- FCR
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Power Wing - CR/KX/RM PW-08
BOYESEN
$129.95The BOYESEN Power Wing is engineered to unlock measurable gains in horsepower and torque by optimizing fuel atomization at the needle jet without disrupting your bike's jetting curve. This precision-designed component works across both 2-stroke and...10500137- SKU:
- 10500137
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- BASE COLOR:
- GOLD
- PRODUCT NAME:
- FUEL ATOMIZER
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- POWERWING
$129.95Qty in Cart: 0Quantity:Price:$129.95Subtotal: -
On Sale
BOYESEN Power Wing - YZ/WR PW-06
BOYESEN
MSRP: $129.95Now: $83.00Was: $129.95If you're running a YZ or WR and leaving power on the table, the BOYESEN Power Wing is your answer. This precision-engineered intake component optimizes fuel atomization and air velocity without requiring jetting changes, delivering measurable gains...10500136- SKU:
- 10500136
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- BASE COLOR:
- GOLD
- MODEL:
- POWERWING
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- FUEL ATOMIZER
- UNITS:
- EACH
MSRP: $129.95Now: $83.00Was: $129.95 -
BOYESEN Super Stock Reeds - KTM/Husqvarna SSC-341
BOYESEN
$59.95Reeds are the unsung workhorses of your snowmobile's power delivery—they control intake timing and flow with precision that directly impacts throttle response and peak performance across the entire RPM band. BOYESEN Super Stock Reeds are engineered to...10080294- SKU:
- 10080294
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- CARBON
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- SET
$59.95Qty in Cart: 0Quantity:Price:$59.95Subtotal: -
BOYESEN Pro Series Reed for RAD-40B PSR-040
BOYESEN
$55.95A reed valve's responsiveness directly impacts throttle feel and acceleration—and the BOYESEN Pro Series Reed delivers measurable gains in both. The dual-stage design combines a carbon fiber top reed with a reinforced fiberglass/epoxy bottom reed, giving...10080289- SKU:
- 10080289
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- MODEL:
- RAD VALVE
- UNITS:
- EACH
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
$55.95 -
BOYESEN Radiator Valve - KTM 65SX RAD-40B
BOYESEN
$169.95The BOYESEN Radiator Valve optimizes intake charge distribution across your KTM 65SX's cylinder, delivering sharper throttle response and measurable horsepower gains throughout the entire RPM range. By maintaining consistent flow velocity and redirecting...10080288- SKU:
- 10080288
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- COLOR/FINISH:
- SILVER
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- MODEL:
- RAD VALVE
$169.95Qty in Cart: 0Quantity:Price:$169.95Subtotal: -
BOYESEN Pro Series Reed for RAD-33J PSR-033
BOYESEN
$69.95A reed valve is one of the most critical components for controlling your engine's intake charge timing and efficiency. The BOYESEN Pro Series Reed leverages advanced dual-stage engineering to deliver precise throttle response and measurable gains in...10080121- SKU:
- 10080121
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
$69.95 -
BOYESEN Pro Series Reed for RAD-12J PSR-012
BOYESEN
$69.95If you're serious about extracting maximum performance from your two-stroke engine, reed valve quality directly impacts throttle response, acceleration, and overall power delivery. The Boyesen Pro Series Reed delivers the responsive, consistent...10080119- SKU:
- 10080119
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- TYPE:
- DUAL STAGE
- UNITS:
- SET
$69.95 -
BOYESEN Pro Series Reed for RAD-02I PSR-002
BOYESEN
$69.95Reed valve performance directly controls throttle response and acceleration in 2-stroke engines—a sluggish or unreliable reed setup will cost you critical power and consistency on the track. The Boyesen Pro Series PSR-002 combines carbon fiber durability...10080118- SKU:
- 10080118
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
BOYESEN Pro Series Reed for RAD34H/I PSR-178
BOYESEN
$69.95Reed valve performance directly impacts throttle response and peak horsepower in two-stroke engines, making quality construction non-negotiable for serious racers and tuners. The Boyesen Pro Series PSR-178 combines carbon fiber durability with proven...10080026- SKU:
- 10080026
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- BASE COLOR:
- YELLOW
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
On Sale
BOYESEN Pro Series Reed for RAD33I PSR-203
BOYESEN
MSRP: $69.95Now: $45.00Was: $69.95A reed valve is only as good as its response time, and the Boyesen Pro Series Reed delivers the throttle precision and acceleration you need to stay competitive. By pairing a lightweight carbon fiber top reed with a reinforced fiberglass/epoxy bottom...10080025- SKU:
- 10080025
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- MODEL:
- PRO SERIES
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
MSRP: $69.95Now: $45.00Was: $69.95Qty in Cart: 0Quantity:Price:MSRP: $69.95Now: $45.00Was: $69.95Subtotal:
