{"product_id":"namura-040-over-bore-piston-kit-for-yamaha-big-bear-250-2007-2008-2009-72mm","title":"Namura .040 Over Bore Piston Kit for Yamaha Big Bear 250 2007 2008 2009 72mm","description":"\u003ch2\u003eNamura .040 Over Bore Piston Kit for Yamaha\u003c\/h2\u003e\u003cp\u003eThis Namura .040 over bore piston kit is designed for Yamaha Big Bear 250 ATVs from 2007 to 2009, featuring a 72mm bore size for reliable engine rebuilds.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura .040 over bore piston kit provides a direct replacement for Yamaha Big Bear 250 engines, offering precise 72mm bore sizing. This piston kit is ideal for restoring compression and performance in 2007-2009 models. Each kit includes all necessary components for a complete top-end rebuild.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined from high-silicone aluminum alloy for durability\u003c\/li\u003e\n\u003cli\u003e.040 over bore size increases displacement for improved power\u003c\/li\u003e\n\u003cli\u003eIncludes premium piston rings for optimal sealing\u003c\/li\u003e\n\u003cli\u003eWrist pin and circlips included for complete installation\u003c\/li\u003e\n\u003cli\u003eDesigned to meet or exceed OEM specifications\u003c\/li\u003e\n\u003cli\u003eEach piston is weight-matched for balanced performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha Big Bear 250 (2007-2009)\u003c\/li\u003e\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\u003e72mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOver Bore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNamura\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Make\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBig Bear 250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYears\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2007-2009\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 Is this piston kit a direct fit for my Yamaha Big Bear 250? \u003cstrong\u003eA:\u003c\/strong\u003e This kit is designed for 2007-2009 Big Bear 250 models with the stock 72mm bore; confirm your engine's serial number to ensure compatibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What should I do after installing the piston kit? \u003cstrong\u003eA:\u003c\/strong\u003e Follow proper break-in procedures with moderate loads and frequent oil changes to seat the rings and extend engine life.\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":44890494009430,"sku":"SZ1F11938","price":138.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_db3e75bd-e677-49d1-8b43-89aa6992a9c8.jpg?v=1781140720","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-kit-for-yamaha-big-bear-250-2007-2008-2009-72mm","provider":"Solid Spare","version":"1.0","type":"link"}