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 - 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...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...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
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
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...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...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
$22.95 -
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...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
$34.95Qty in Cart: 0Quantity:Price:$34.95Subtotal: -
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...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...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
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
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...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...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...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
$129.95Qty in Cart: 0Quantity:Price:$129.95Subtotal: -
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...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
$189.95Qty in Cart: 0Quantity:Price:$189.95Subtotal: -
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...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...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...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...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
$129.95Qty in Cart: 0Quantity:Price:$129.95Subtotal: -
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...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...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: -
BOYESEN Power Wing - CRF150R '07-'20 PW-20
BOYESEN
$99.95If you're running a CRF150R and serious about extracting every bit of performance from your engine, the BOYESEN Power Wing is a straightforward bolt-on solution that delivers measurable gains in...10500167- SKU:
- 10500167
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- BASE COLOR:
- GOLD
- PRODUCT NAME:
- FUEL ATOMIZER
- COLOR/FINISH:
- GOLD
- MODEL:
- POWERWING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$99.95 -
BOYESEN Radiator Valve - YZ250/X RAD-34J
BOYESEN
$179.95If you're running a YZ250/X and want sharper throttle response with measurable power gains across the RPM range, the BOYESEN Radiator Valve is a direct bolt-on upgrade that improves intake charge...10080116- SKU:
- 10080116
- Availability:
- Ships Same Business Day
- Weight:
- 1.06 LBS
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
- MODEL:
- RAD VALVE
- UNITS:
- EACH
$179.95 -
BOYESEN Radiator Valve - YZ125 '05-'20 RAD-33J
BOYESEN
$179.95The BOYESEN Radiator Valve optimizes intake charge distribution across your YZ125's cylinder, delivering sharper throttle response and measurable horsepower gains throughout the entire RPM range. By...10080115- SKU:
- 10080115
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REED CAGE ASSEMBLY
- MATERIAL:
- CARBON FIBER
- MODEL:
- RAD VALVE
- UNITS:
- EACH
- TYPE:
- DUAL STAGE
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal:
