{"product_id":"420854449-power-valve-piston-for-sea-doo-gti-rfi-800-2004-2005","title":"420854449 Power Valve Piston for Sea-Doo GTI RFI 800 2004-2005","description":"\u003ch2\u003ePower Valve Piston for Sea-Doo\u003c\/h2\u003e\u003cp\u003eThe Power Valve Piston for Sea-Doo, part 420854449, is a replacement component that operates the exhaust power valve to manage exhaust timing for the GTI RFI 800 engine.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Power Valve Piston for Sea-Doo is a direct replacement component made to fit the RFI 800 engine used in the GTI series. The power valve piston sits in the exhaust valve assembly and moves to alter exhaust port timing as RPM changes, helping the engine build low-end torque and hold top-end power. It suits riders performing routine top-end maintenance or rebuilding a worn exhaust valve assembly.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplaces OEM part number 420854449\u003c\/li\u003e\n\u003cli\u003eConstructed for the Rotax RFI 800 exhaust power valve system\u003c\/li\u003e\n\u003cli\u003eManufactured to match original dimensions for a direct fit\u003c\/li\u003e\n\u003cli\u003eWorks with the power valve bellows and housing already on the engine\u003c\/li\u003e\n\u003cli\u003eSold as a single piston for one valve position\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Sea-Doo GTI RFI 800, 2004-2005\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds on the Rotax RFI 800 engine\u003c\/li\u003e\n\u003cli\u003eReplacing a stuck or worn power valve piston\u003c\/li\u003e\n\u003cli\u003eRestoring exhaust valve movement after carbon buildup\u003c\/li\u003e\n\u003cli\u003eRoutine maintenance on GTI RFI 800 powered watercraft\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e420854449\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponent Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower valve piston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRotax RFI 800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 piston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How do I know if my power valve piston needs replacing? \u003cstrong\u003eA:\u003c\/strong\u003e Common signs include a loss of top-end power, rough running at higher RPM, or visible wear and carbon damage when the valve housing is opened. Inspect the piston during any top-end service and replace it if the surface is scored or the fit is loose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this piston fit both valve positions on the engine? \u003cstrong\u003eA:\u003c\/strong\u003e The piston is sold as a single unit, so order the quantity needed for your rebuild. Check your engine's valve arrangement and replace as required.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":51060202405974,"sku":"OO1C02127","price":37.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_51477a10-ad02-4fc4-a92c-0b536d42faae.jpg?v=1794306996","url":"https:\/\/www.solidspare.com\/products\/420854449-power-valve-piston-for-sea-doo-gti-rfi-800-2004-2005","provider":"Solid Spare","version":"1.0","type":"link"}