Boyesen

Laboratory flow analysis proves Boyesen® dual-stage reeds out-perform standard reedsThey permit greater flow velocity over the entire range of operating pressuresIncreased performance from start-up...

Laboratory flow analysis proves Boyesen® dual-stage reeds out-perform standard reedsThey permit greater flow velocity over the entire range of operating pressuresIncreased performance from start-up...

Laboratory flow analysis proves Boyesen® dual-stage reeds out-perform standard reedsThey permit greater flow velocity over the entire range of operating pressuresIncreased performance from start-up...

Without excess foam, floats maintain their position, keeping optimum air-fuel mixture that provides steady power over jumps and through whoopsSpecial curved interior turns fuel in on itself,...

High-volume vertical check valve located in the QS3 for precise, consistent fuel meteringTunable leak jet maximizes volume of fuel and duration of fuel spray for all conditionsIntegrated Hot Start...

High-volume vertical check valve located in the QS3 for precise, consistent fuel meteringTunable leak jet maximizes volume of fuel and duration of squirt for all conditionsInvestment cast and...

High-volume vertical check valve located in the QS3 for precise, consistent fuel meteringTunable leak jet maximizes volume of fuel and duration of squirt for all conditionsInvestment cast and...

QuickShot's patent-pending design eliminates hesitation and bog on bikes and ATVs and provides instant response to throttle movementsAdditional benefits are reduced hot engine stalling and improved...

Wing channel minimizes disturbance at needle jet without affecting jetting curveAerodynamic design maximizes velocity generation and power gainIncreases horsepower and torque in 2-stroke and...

Wing channel minimizes disturbance at needle jet without affecting jetting curveAerodynamic design maximizes velocity generation and power gainIncreases horsepower and torque in 2-stroke and...

Wing channel minimizes disturbance at needle jet without affecting jetting curveAerodynamic design maximizes velocity generation and power gainIncreases horsepower and torque in 2-stroke and...

Wing channel minimizes disturbance at needle jet without affecting jetting curveAerodynamic design maximizes velocity generation and power gainIncreases horsepower and torque in 2-stroke and...