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 Racing Reeds - CR250 '01 696
BOYESEN
$39.95A stock reed valve is a bottleneck in your CR250's intake system—it restricts flow when your engine demands maximum fuel charge. Boyesen's dual-stage reed design eliminates this constraint, enabling superior flow velocity across the entire operating...696- SKU:
- 696
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MODEL:
- POWER REED
$39.95 -
BOYESEN Racing Reed - CR125 '01-'02 695
BOYESEN
$39.95Stock reeds limit your CR125's potential across the entire RPM band. Boyesen's dual-stage reed design has been laboratory-validated to deliver superior flow velocity, unlocking measurable gains in throttle response, mid-range punch, and top-end...695- SKU:
- 695
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- UNITS:
- SET
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- POWER REED
$39.95 -
BOYESEN Racing Reeds - YZ125 694
BOYESEN
$39.95Standard reed valves restrict flow across your powerband, leaving performance on the table—especially during critical start-up and mid-range acceleration phases. Boyesen's dual-stage reed design has been laboratory-validated to outperform conventional...694- SKU:
- 694
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MODEL:
- POWER REED
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
BOYESEN Racing Reeds - KX65 693
BOYESEN
$28.95Boyesen racing reeds are engineered to maximize flow efficiency across your entire powerband, delivering measurable gains in throttle response and acceleration. Laboratory flow analysis confirms that the dual-stage design outperforms standard reeds by...693- SKU:
- 693
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- SET
- BASE COLOR:
- YELLOW
- MODEL:
- POWER REED
- MATERIAL:
- FIBERGLASS
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
$28.95 -
BOYESEN Racing Reed - Suzuki 676
BOYESEN
$39.95The BOYESEN Racing Reed for Suzuki 676 delivers measurable flow improvements across your entire operating range, directly translating to stronger throttle response and acceleration. Laboratory-validated dual-stage reed design increases flow velocity at...676- SKU:
- 676
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- FIBERGLASS
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
- MODEL:
- POWER REED
- RIDING STYLE:
- OFF-ROAD
$39.95 -
BOYESEN Racing Reed - KTM 675
BOYESEN
$39.95A stock reed valve is a bottleneck in your intake system—it restricts flow velocity and kills acceleration response across your entire RPM band. The Boyesen Racing Reed replaces this limitation with dual-stage reed technology proven through laboratory...675- SKU:
- 675
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- UNITS:
- SET
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- POWER REED
$39.95 -
BOYESEN Racing Reed - PW50 674
BOYESEN
$22.95Stock reed valves limit your PW50's potential across the entire power band, choking performance from cold starts through peak acceleration. Boyesen's dual-stage reed design proven through laboratory flow analysis delivers measurably higher flow velocity...674- SKU:
- 674
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- MODEL:
- POWER REED
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- OFF-ROAD
$22.95Qty in Cart: 0Quantity:Price:$22.95Subtotal: -
BOYESEN Racing Reed - RM85 '02-'16 6104
BOYESEN
$34.95The stock reed valve is your RM85's biggest restriction to peak performance. Boyesen's dual-stage reed design has been laboratory-validated to deliver superior flow velocity across the entire operating pressure range, translating to faster throttle...6104- SKU:
- 6104
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- POWER REED
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- FIBERGLASS
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
$34.95 -
BOYESEN Racing Reed - CR250 '02 6103
BOYESEN
$48.95The stock reed valve is your CR250's bottleneck—restricting airflow and leaving power on the table across the entire RPM range. Boyesen's dual-stage reed design unlocks measurably higher flow velocity at every operating pressure, translating to sharper...6103- SKU:
- 6103
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MODEL:
- POWER REED
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- REED PETAL
- UNITS:
- SET
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- TYPE:
- DUAL STAGE
$48.95 -
BOYESEN Racing Reeds - YZ250 '01-'02 6102
BOYESEN
$39.95Stock reeds limit your YZ250's potential across the entire powerband, forcing you to accept compromised throttle response and midrange acceleration. Boyesen Racing Reeds transform your engine's intake efficiency through dual-stage design and...6102- SKU:
- 6102
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 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 Racing Reeds - Honda 250R 607
BOYESEN
$39.95Stock reeds are your engine's first bottleneck—they restrict flow at the exact moments when your Honda 250R demands peak breathing efficiency. The BOYESEN Racing Reeds eliminate this constraint by leveraging dual-stage reed technology proven through...607- SKU:
- 607
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- UTV
- UNITS:
- SET
- MODEL:
- POWER REED
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- MATERIAL:
- FIBERGLASS
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- ATV
- TYPE:
- DUAL STAGE
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
BOYESEN Quickshot 3 Pump Cover - KTM APC-3K
BOYESEN
$119.95Carb hesitation and bog kill performance when you need it most. The Boyesen Quickshot 3 delivers instant throttle response through precise fuel metering, eliminating that critical delay between twist and acceleration. If you're running a Keihin FCR carb,...10500258- SKU:
- 10500258
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MODEL:
- QUICKSHOT
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- FEATURES:
- ADJUSTABLE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- ACCELERATOR PUMP
- UNITS:
- EACH
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
BOYESEN Power Wing PW-40
BOYESEN
$129.95If you're serious about extracting maximum performance from your 2-stroke or 4-stroke engine, the BOYESEN Power Wing PW-40 delivers measurable gains in horsepower and torque without requiring jetting adjustments. The precision-engineered wing channel...10500245- SKU:
- 10500245
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- FUEL ATOMIZER
- COLOR/FINISH:
- GOLD
- MODEL:
- POWERWING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BASE COLOR:
- GOLD
$129.95 -
BOYESEN Quick Start -3 APC-3QS
BOYESEN
$189.95If you're running a Keihin FCR carburetor and experiencing bog on throttle apply or struggling with hot starts, the Boyesen Quick Start -3 APC-3QS solves both problems with a single, bolt-on upgrade. This investment-cast check valve assembly delivers...10500228- SKU:
- 10500228
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- MATERIAL:
- ALUMINUM
- TYPE:
- ACCELERATOR PUMP
- UNITS:
- EACH
- MODEL:
- QUICKSTART
- PRODUCT NAME:
- COVER
- MODEL:
- FOR ALL KEIHIN FCR CARBS
- RIDING STYLE:
- OFF-ROAD
- FEATURES:
- ADJUSTABLE
$189.95 -
BOYESEN Quickshot 3 APC-3
BOYESEN
$119.95Carburetor hesitation and bog rob you of throttle response when you need it most. The BOYESEN Quickshot 3 APC-3 eliminates that dead spot with a high-volume vertical check valve that meters fuel with precision across all throttle conditions. Whether...10500225- SKU:
- 10500225
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- ACCELERATOR PUMP
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
- FEATURES:
- ADJUSTABLE
- MATERIAL:
- ALUMINUM
- MODEL:
- QUICKSTART
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
BOYESEN Power Wing PW-43
BOYESEN
$99.95The BOYESEN Power Wing PW-43 is engineered to optimize fuel atomization in your carburetor's needle jet area without altering your existing jetting curve—meaning measurable gains in horsepower and torque without costly retuning. Its aerodynamic design...10500217- SKU:
- 10500217
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- COLOR/FINISH:
- GOLD
- MODEL:
- POWERWING
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- FUEL ATOMIZER
- UNITS:
- EACH
- BASE COLOR:
- GOLD
$99.95Qty in Cart: 0Quantity:Price:$99.95Subtotal: -
BOYESEN Power Wing - YZ250F '03-'09 PW-38
BOYESEN
$129.95The BOYESEN Power Wing is engineered to unlock hidden performance in your YZ250F by optimizing fuel atomization at the needle jet without requiring jetting adjustments. This precision-designed intake component increases both horsepower and torque across...10500198- SKU:
- 10500198
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COLOR/FINISH:
- GOLD
- MODEL:
- POWERWING
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- FUEL ATOMIZER
- UNITS:
- EACH
- BASE COLOR:
- GOLD
$129.95 -
BOYESEN Power Wing - KX/RM/YZ250 PW-37
BOYESEN
$129.95If you're running a KX, RM, or YZ250 two-stroke, intake tract efficiency directly determines your power output—and the BOYESEN Power Wing is engineered to optimize that critical zone. By strategizing airflow around the needle jet without retuning your...10500193- SKU:
- 10500193
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- BASE COLOR:
- GOLD
- MODEL:
- POWERWING
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- FUEL ATOMIZER
$129.95 -
BOYESEN Power Wing - CRF450 '07-'08 PW-30
BOYESEN
$129.95The BOYESEN Power Wing transforms your CRF450's intake efficiency by optimizing airflow dynamics at the needle jet without requiring jetting adjustments. This precision-engineered component delivers measurable horsepower and torque gains across your...10500189- SKU:
- 10500189
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- FUEL ATOMIZER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MODEL:
- POWERWING
- BASE COLOR:
- GOLD
$129.95Qty in Cart: 0Quantity:Price:$129.95Subtotal: -
BOYESEN Power Wing - Honda 250/450 PW-29
BOYESEN
$129.95If you're serious about extracting every bit of performance from your Honda 250/450, the BOYESEN Power Wing is a precision tuning component that belongs in your carburetor. This CNC-engineered wing channel optimizes air velocity through the needle jet...10500188- SKU:
- 10500188
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- BASE COLOR:
- GOLD
- MODEL:
- POWERWING
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- FUEL ATOMIZER
- UNITS:
- EACH
$129.95Qty in Cart: 0Quantity:Price:$129.95Subtotal:
