Availability
Boyesen SuperCooler water pump cover and impeller kits are specifically designed to enhance the performance of your engine's cooling system. These high-flow, hydrodynamic water pump kits have been tested and designed to flow more coolant. By increasing the flow, the engine will run cooler at a more constant temperature. The patented nautilus-style impeller affords you efficiency and an extended engine life
Not Yet Reviewed
$174.99
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$199.99
Boyesen Rad Valves are true bolt-on power booster with maximum power achieved through air intake, acceleration, and distribution. To maintain peak performance reeds should be checked and replaced frequently. They also offer other replacement parts to service your Rad Valve, like boots, clamps, gaskets, and bolts. Boyesen Rad Valve air boot and clamp kits package a quality boot and a pair of clamps to secure the connection.
Not Yet Reviewed
$23.99
Boyesen Power Wings smooth out the turbulence so you can fly around the track and over the trails. These innovative units streamline the airflow to your carburetor, which increases air speed, horsepower, and torque in your 2 and 4-stroke engines. These well-crafted brass wings offer a precise fit, so they will not reduce carburetor bore size or create loss of power. Improve airflow and performance with aerodynamic Power Wings from Boyesen.
Not Yet Reviewed
$100.99
Add style and a factory look to your bike with Boyesen Factory ignition covers. These covers are strong, lightweight, and durable, providing years of outstanding protection. Features include: * Asbestos-free gasket is bound with nitrile for a tight, leak-free seal * Individually formed mounting surface to ensure a perfect fit * Investment cast aluminum, which provides excellent heat dissipation and will not warp like stock clutch covers * Super-tough powdercoated finish resists weathering and wear and tear
( 3 )
$93.99
Boyesen power reeds feature an advanced fiberglass dual-stage design, which incorporates a specially shaped top reed that is lightweight and resilient for crisp throttle response at partial throttle or low rpm. The stiffer bottom reed is ported to provide maximum flow and horsepower at higher rpm. Features include: * Quicker acceleration for that all-important holeshot * Crisper throttle response for faster corner exits * More horsepower throughout the powerband for guaranteed performance * Improved engine efficiency and fuel economy for the long-distance rider
( 2 )
$23.99
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$39.99
Boyesen Factory Racing clutch covers are cast in aluminum and are powdercoated for long-lasting performance and protection. These covers are guaranteed not to warp and are individually surfaced for a perfect, leak-free fit. Features include: * Asbestos-free gasket is bound with nitrile for a tight, leak-free seal * Individually formed mounting surface to ensure a perfect fit * Investment cast aluminum, which provides excellent heat dissipation and will not warp like stock clutch covers * Super-tough powdercoated finish resists weathering and wear and tear
Not Yet Reviewed
$102.99
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$114.99
Boyesen Rad Valves are true bolt-on power booster with maximum power achieved through air intake, acceleration, and distribution. To maintain peak performance reeds should be checked and replaced frequently. They also offer other replacement parts to service your Rad Valve, like boots, clamps, gaskets, and bolts. Boyesen Rad Valve gaskets seal perfectly to keep out dirt and moisture. These replacement gaskets are asbestos-free and bound with nitrile for a tight, leak-free seal.
Not Yet Reviewed
$7.99
Boyesen Rad Valves provide sharper throttle response and more horsepower by maintaining flow velocity and redirecting the intake charge to the intake ports. They offer one-piece aluminum casting, with no manifolds to trim, no plastic pieces to insert, and no messy glue, which can warp, shrink, melt, or crack. Rad Valves come complete with the valve, reeds, intake flange, gasket, and clamps.
( 1 )
$179.99
Boyesen Pro Series reeds combine breakthrough carbon technology with all the advantages of Boyesen's dual-stage Power Reed. They respond more quickly to changes in engine pressure, more overrev delivering the largest horsepower and torque gains and increased life over traditional carbon fiber reeds.
Not Yet Reviewed
$64.99
Boyesen QuickShot 3 accelerator pump covers completely fill the pump chamber with fuel and provide an adjustable leak jet circuit for simple hand-tuning and the ultimate in adjustable fuel injection. Features include: * Tunable leak jet maximizes volume of fuel and duration of squirt for all conditions * Investment cast and finished to precise tolerances * 25 percent more fuel capacity * High-volume vertical check valve located in the QS3 for precise, consistent fuel metering * Stops hesitation and bog * Instant throttle response * Improved low-end performance * Fits ALL Keihin FCR carbs * Simple bolt-on installation
( 1 )
$119.99
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