{"product_id":"2-spi-020-over-bore-piston-kits-for-yamaha-excel-v-540-xlv-1979-1990-73-5mm","title":"2 SPI .020 Over Bore Piston Kits for Yamaha Excel V 540 \u0026 XLV 1979-1990 73.5mm","description":"\u003ch2\u003e.020 Over Bore Piston Kit for Yamaha Excel V 540 \u0026amp; XLV 1979-1990\u003c\/h2\u003e\u003cp\u003eThis SPI .020 over bore piston kit for Yamaha Excel V 540 and XLV (1979-1990) with a 73.5mm bore is designed to restore compression after cylinder boring.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis SPI .020 over bore piston kit provides two piston assemblies for Yamaha Excel V 540 and XLV snowmobiles from 1979 through 1990. At 73.5mm bore, it allows a fresh cylinder surface after boring .020 over stock. Each kit includes rings, wrist pin, and circlips for a complete top-end rebuild.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eManufactured from durable cast aluminum alloy for reliable cold-start performance\u003c\/li\u003e\n\u003cli\u003eEach kit contains two pistons for a twin-cylinder engine\u003c\/li\u003e\n\u003cli\u003ePrecision-ground ring lands reduce blow-by and improve compression\u003c\/li\u003e\n\u003cli\u003eOversized .020 over bore accommodates worn or scored cylinders\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary hardware for installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha Excel V 540 (1979-1990)\u003c\/li\u003e\n\u003cli\u003efor Yamaha XLV (1979-1990)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIdeal for restoring snowmobile engines with cylinder wear\u003c\/li\u003e\n\u003cli\u003eCommonly used in vintage Yamaha Excel models for winter recreation\u003c\/li\u003e\n\u003cli\u003ePerfect for engine rebuilds after top-end failure or piston seizure\u003c\/li\u003e\n\u003cli\u003eWorks with 73.5mm cylinder bore after .020 over boring\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\u003e73.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.020 over stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 pistons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCast aluminum alloy\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 Can these pistons be used with a stock cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, they require the cylinder to be bored .020 over to 73.5mm; they will not fit a standard 73.0mm bore.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do these kits include both pistons for a twin engine? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit supplies two complete piston assemblies for both cylinders of the Yamaha Excel V 540 and XLV.\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":44949793800278,"sku":"SZ1F15075","price":263.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_01137ecb-c480-44c7-845d-ab88d87c1b2b.jpg?v=1781399281","url":"https:\/\/www.solidspare.com\/products\/2-spi-020-over-bore-piston-kits-for-yamaha-excel-v-540-xlv-1979-1990-73-5mm","provider":"Solid Spare","version":"1.0","type":"link"}