{"product_id":"namura-020-over-bore-top-end-repair-kit-for-sea-doo-650-1993-1996-models-78-5mm","title":"Namura .020 Over Bore Top End Repair Kit for Sea-Doo 650 1993-1996 Models 78.5mm","description":"\u003ch2\u003e.020 Over Bore Top End Repair Kit for Sea-Doo 650\u003c\/h2\u003e\u003cp\u003eThis Namura .020 Over Bore Top End Repair Kit (78.5mm) provides pistons, rings, cylinders, and gaskets for rebuilding the top end on Sea-Doo 650 models from 1993 to 1996.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura .020 Over Bore Top End Repair Kit (78.5mm) is designed for Sea-Doo 650 engines that have been bored oversize. It includes matching pistons, rings, and gaskets to restore compression and performance in 1993-1996 models.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOversized 78.5mm pistons for .020 over bore applications\u003c\/li\u003e\n\u003cli\u003eHigh-strength cast pistons with premium ring sets\u003c\/li\u003e\n\u003cli\u003eComplete gasket set for a leak-free seal\u003c\/li\u003e\n\u003cli\u003ePrecision-machined cylinders for exact fitment\u003c\/li\u003e\n\u003cli\u003eAll necessary hardware included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Sea-Doo 650 (1993-1996)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding Sea-Doo 650 engines after cylinder boring\u003c\/li\u003e\n\u003cli\u003eRestoring compression on high-hour watercraft\u003c\/li\u003e\n\u003cli\u003eInstalling a .020 over bore kit for increased displacement\u003c\/li\u003e\n\u003cli\u003ePerforming a top end rebuild with oversize pistons\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e78.5mm (.020 Over)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTop End Repair Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSea-Doo 650 1993-1996\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 Why choose a .020 over bore kit? \u003cstrong\u003eA:\u003c\/strong\u003e A .020 over bore is common when the original cylinder is worn beyond standard limits; this kit provides the correct oversized pistons and rings to match the bored cylinders.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need to have my cylinders bored before installing? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, cylinders must be bored to 78.5mm by a machine shop to accept these oversized pistons. The kit does not include pre-bored cylinders.\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":44949896921174,"sku":"SZ1F16020","price":358.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_4563050d-dbcf-4e49-ac61-ad0078fd8c22.jpg?v=1781401051","url":"https:\/\/www.solidspare.com\/products\/namura-020-over-bore-top-end-repair-kit-for-sea-doo-650-1993-1996-models-78-5mm","provider":"Solid Spare","version":"1.0","type":"link"}