Husqvarna® 350 | 4101991 to 1999 on Kibblewhite Precision Machining

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All Categories > Motorcycle Valvetrain Components > Husqvarna® Motorcycle Valvetrain Components > Husqvarna® 350 \| 410 1991 to 1999


	Husqvarna® 350 \| 410 1991 to 1999
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		Lightweight Racing Valve Spring Kits for Husqvarna® 350 / 410 1991-1999 KPMI takes a scientific “System” approach when designing our Valve spring kits. Each component is designed to work with the others as part of the complete system. KPMI’s engineers use our proprietary design and simulation softwares, and draw on our 70+ years of design experience to create these systems. Our design, simulation, and manufacturing processes insure compatibility of the valve spring’s force and natural frequency with the cam profile, valvetrain mass, system harmonics, and the engine RPM. Our spring manufacturing partners are U.S based companies that are ISO certified. The Super-Clean Chrome Silicon valve spring wire we use is traceable back to Kobe Japan where some of the best spring wire in the ...




		Black Diamond™ Valves for Husqvarna® 350 / 410 1991-1999 (2) All KPMI Black Diamond™ stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface build up of .0002”. This “Black Diamond™” process improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Black Diamond™ Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics.




		Valve Guides for Husqvarna® 350 / 410 1991-1999 (5) We choose to use the copper based C63000 nickel-aluminum bronze as a material to make valve guides because of its ideal characteristics for the application. The 4-5 percent nickel content provides superior resistance to wear, and the approximately 80 percent copper content delivers outstanding heat conductivity. KPMI guide profiles are designed to have minimal effect on the airstream while maintaining critical cross sectional thickness in high temperature areas, promoting high performance and endurance. The top portion of the guides are shortened when cam lift information available at the time of design shows that additional retainer to seal clearance is required.