{"product_id":"1987-2004-yamaha-warrior-350-yfm350-kibblewhite-lightweight-racing-spring-kit-with-black-diamond-valves","title":"1987 - 2004 YAMAHA WARRIOR 350 YFM350 KIBBLEWHITE LIGHTWEIGHT RACING SPRING KIT with BLACK DIAMOND VALVES","description":"\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0770\/0741\/files\/NEW_ZOOM_ZOOM_LOGO_480x480.jpg?v=1577386703\" alt=\"\" width=\"281\" height=\"157\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ch3 id=\"p-rc_8bbdc008e00ecdcf-44\"\u003e\n\u003cspan class=\"citation-420\"\u003eKibblewhite Precision Machining (KPMI)\u003c\/span\u003e\u003cspan class=\"citation-420 citation-end-420\"\u003e high-performance lightweight racing valve spring kits are engineered to withstand the punishing environments and high-RPM demands of race-modified power plants.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-419 citation-end-419\"\u003eDesigned using a strict \"unified system\" approach, these premium components out-perform and outlast factory OEM valvetrains, making them an essential upgrade for high-stress applications running aggressive aftermarket camshafts.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/h3\u003e\n\u003ch3 id=\"p-rc_8bbdc008e00ecdcf-45\"\u003e\n\u003cspan class=\"citation-418 citation-end-418\"\u003eKey Features \u0026amp; Engineering:\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ch3 id=\"p-rc_8bbdc008e00ecdcf-46\"\u003e\n\u003cspan class=\"citation-417\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-417\"\u003eAdvanced Metallurgy:\u003c\/span\u003e\u003cspan class=\"citation-417 citation-end-417\"\u003e Springs are progressively wound from high-strength Chrome Silicon (CrSi) or ovate wire, heat-treated, and shot-peened to deliver incredible resistance to fatigue and valve float.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 id=\"p-rc_8bbdc008e00ecdcf-47\"\u003eMass-Optimized Retainers: Equipped with lightweight, FEA-designed (Finite Element Analysis) titanium or hardened heat-treated (H.T.) \u003cspan class=\"citation-416 citation-end-416\"\u003esteel retainers that minimize top-end valvetrain weight without sacrificing structural integrity.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 id=\"p-rc_8bbdc008e00ecdcf-48\"\u003e\n\u003cspan class=\"citation-415\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-415\"\u003eApplication-Specific Harmonics:\u003c\/span\u003e\u003cspan class=\"citation-415 citation-end-415\"\u003e Every kit is precisely engineered for its specific engine platform, balancing critical parameters like cam profiles, harmonic frequencies, mass, wire stress, and exact seat\/open pressures.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 id=\"p-rc_8bbdc008e00ecdcf-49\"\u003e\n\u003cspan class=\"citation-414\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-414\"\u003eComplete Drop-In Security:\u003c\/span\u003e\u003cspan class=\"citation-414 citation-end-414\"\u003e Each kit provides a matched set of high-strength base washers, springs, and premium retainers—offering total valvetrain control, added clearance, and exceptional longevity under maximum lift conditions.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003cspan class=\"citation-414 citation-end-414\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp id=\"p-rc_8bbdc008e00ecdcf-50\"\u003e\u003cspan class=\"citation-413\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-413\"\u003eThe Verdict:\u003c\/span\u003e\u003cspan class=\"citation-413 citation-end-413\"\u003e Whether you are building a high-revving motocross engine, upgrading an aggressive trail quad, or pushing extreme boost pressures, KPMI racing springs deliver the precise valvetrain control needed to protect your engine from catastrophic damage at peak RPM.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 align=\"center\" class=\"MsoNormal\" style=\"margin-bottom: 0in; text-align: center; line-height: normal;\"\u003e\u003c\/h2\u003e\n\u003ch2 align=\"center\" class=\"MsoNormal\" style=\"margin-bottom: 0in; text-align: center; line-height: normal;\"\u003e\n\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e \u003c\/span\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003e\u003cb\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eWORKS BEST with STAGE 1 or 2 CAMSHAFT\u003c\/span\u003e\u003c\/b\u003e\u003c\/em\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\u003cb\u003e\u003cu\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003ch2\u003e\n\u003cb\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eKIBBLEWHITE SPRING KIT 80-8000\u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eRacing Spring Kit (Titanium, 0.475\" Lift)\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\n\u003cb\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eKIBBLEWHITE BLACK DIAMOND EXHAUST VALVE (34mm head diameter)\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\u003cb\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eKIBBLE WHITE BLACK DIAMOND INTAKE VALVE (40mm head diameter)\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003ch2 style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: center; line-height: normal;\" align=\"center\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003ch1\u003e\u003cb\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eMade in the USA\u003c\/span\u003e\u003c\/b\u003e\u003c\/h1\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Zoom Zoom Parts","offers":[{"title":"Default Title","offer_id":50122231120095,"sku":"KIBBEL WHITE 80-8000 VALVES 80-80014 80-80012","price":214.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/0741\/files\/80-8000_f240f2aa-28c1-4168-a7fe-a0a2752d0441.jpg?v=1781723096","url":"https:\/\/zoomzoomparts.com\/products\/1987-2004-yamaha-warrior-350-yfm350-kibblewhite-lightweight-racing-spring-kit-with-black-diamond-valves","provider":"Zoom Zoom Parts","version":"1.0","type":"link"}