Fuel System

Boyesen Engineering has now introduced the NEW QuickShot 3. This bolt-on performance accelerator pump cover eliminates bog, improves throttle response and offers hassle free leak jet circuit tuning. Currently available for ALL Keihin FCR carbureted MX,...

BOYESEN engineers embarked on a mission to create a new lineage of aerodynamic intake technology by refining the primary performance factors required to increase peak horsepower through design innovation: Aerodynamic Surface Optimization, Model-Specific...

BOYESEN engineers embarked on a mission to create a new lineage of aerodynamic intake technology by refining the primary performance factors required to increase peak horsepower through design innovation: Aerodynamic Surface Optimization, Model-Specific...

BOYESEN engineers embarked on a mission to create a new lineage of aerodynamic intake technology by refining the primary performance factors required to increase peak horsepower through design innovation: Aerodynamic Surface Optimization, Model-Specific...

INCREASES HORSEPOWER AND TORQUE IN 2-STROKE, 4-STROKE AND 85CC ENGINESAERODYNAMIC DESIGN MAXIMIZES VELOCITY GENERATION AND POWER GAINWING CHANNEL MINIMIZES DISTURBANCE AT NEEDLE JET WITHOUT AFFECTING JETTING CURVEPRECISION FIT ASSURES PERFECT ALIGNMENT...

INCREASES HORSEPOWER AND TORQUE IN 2-STROKE, 4-STROKE AND 85CC ENGINESAERODYNAMIC DESIGN MAXIMIZES VELOCITY GENERATION AND POWER GAINWING CHANNEL MINIMIZES DISTURBANCE AT NEEDLE JET WITHOUT AFFECTING JETTING CURVEPRECISION FIT ASSURES PERFECT ALIGNMENT...

Direct OE replacement fuel valvesDirect OE replacement molded fuel line providing hassle free installationFuel line meets C.A.R.B. and EPA fuel line permeation standards for motorcycles & ATVsViton rubber fuel resistant gasketsIncludes OE style fuel line...

Direct OE replacement fuel valvesDirect OE replacement molded fuel line providing hassle free installationFuel line meets C.A.R.B. and EPA fuel line permeation standards for motorcycles & ATVsViton rubber fuel resistant gasketsIncludes OE style fuel line...

Direct OE replacement fuel valvesDirect OE replacement molded fuel line providing hassle free installationFuel line meets C.A.R.B. and EPA fuel line permeation standards for motorcycles & ATVsViton rubber fuel resistant gasketsIncludes OE style fuel line...

Redirects fuel flowImproves throttle responseEliminates 99% of all boggingIncreases bottom end performanceImproved fuel efficiencyWorks with fixed or adjustable leak jetsIncludes all necessary additional partsComplete easy to install instructionsPatent...

Direct OE replacement fuel valvesDirect OE replacement molded fuel line providing hassle free installationFuel line meets C.A.R.B. and EPA fuel line permeation standards for motorcycles & ATVsViton rubber fuel resistant gasketsIncludes OE style fuel line...

Direct OE replacement fuel valvesDirect OE replacement molded fuel line providing hassle free installationFuel line meets C.A.R.B. and EPA fuel line permeation standards for motorcycles & ATVsViton rubber fuel resistant gasketsIncludes OE style fuel line...