{"product_id":"namura-na-40002-2k-high-compression-top-end-kit-for-yamaha-yfs200-blaster-66-44-mm-11-1","title":"Namura NA-40002-2K High-Compression Top End Kit for Yamaha YFS200 Blaster, 66.44 mm, 11:1","description":"\u003cp\u003eRestore top-end performance with the Namura NA-40002-2K High-Compression Top End Kit, designed for Yamaha YFS200 Blaster models from 1988 through 1997. This complete kit includes a piston, piston rings, wrist pin, wrist-pin clips, top-end bearing, and gasket kit for a convenient engine rebuild solution. The piston uses a 66.44 mm bore size and an 11:1 compression ratio, making it a suitable replacement for compatible applications requiring a high-compression top-end configuration.\u003c\/p\u003e\u003cp\u003eFeature: MOS2 (Teflon\/Molybdenum) coated skirts use a rolled-on application process that creates a stronger bond than conventional spray-on coatings. The coating helps improve heat transfer, reduce friction, and minimize the risk of cold seizures during operation. Machined smooth heads help reflect combustion heat and reduce carbon buildup, supporting piston protection and consistent engine performance.\u003c\/p\u003e\u003cp\u003eFeature: Anodized domes provide increased heat resistance and durability, while the hypereutectic casting process adds silicon for reduced thermal expansion and improved wear resistance. These design features help the piston withstand higher cylinder temperatures and demanding riding conditions. The Namura manufacturer and vendor part number NA-40002-2K identify this application-specific replacement kit.\u003c\/p\u003e\u003cp\u003eFitment: Compatible with 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, and 1997 Yamaha YFS200 Blaster models. Verify the engine configuration, bore requirement, and existing cylinder condition before installation to ensure proper fit and performance.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete top-end kit includes piston, rings, wrist pin, wrist-pin clips, top-end bearing, and gasket kit\u003c\/li\u003e\n\u003cli\u003e66.44 mm piston bore size with an 11:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eMOS2 (Teflon\/Molybdenum) coated piston skirts help reduce friction, improve heat transfer, and minimize cold-seizure risk\u003c\/li\u003e\n\u003cli\u003eMachined smooth piston head helps reflect combustion heat and reduce carbon buildup\u003c\/li\u003e\n\u003cli\u003eAnodized piston dome improves heat resistance and durability\u003c\/li\u003e\n\u003cli\u003eHypereutectic casting process provides reduced expansion and enhanced wear resistance\u003c\/li\u003e\n\u003cli\u003eFits 1988–1997 Yamaha YFS200 Blaster models\u003c\/li\u003e\n\u003cli\u003eBrand: Namura\u003c\/li\u003e\n\u003cli\u003eManufacturer and vendor part number: NA-40002-2K\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1988 Yamaha YFS200 Blaster\u003cbr\u003e\n1989 Yamaha YFS200 Blaster\u003cbr\u003e\n1990 Yamaha YFS200 Blaster\u003cbr\u003e\n1991 Yamaha YFS200 Blaster\u003cbr\u003e\n1992 Yamaha YFS200 Blaster\u003cbr\u003e\n1993 Yamaha YFS200 Blaster\u003cbr\u003e\n1994 Yamaha YFS200 Blaster\u003cbr\u003e\n1995 Yamaha YFS200 Blaster\u003cbr\u003e\n1996 Yamaha YFS200 Blaster\u003cbr\u003e\n1997 Yamaha YFS200 Blaster\u003cbr\u003e\n1998 Yamaha YFS200 Blaster\u003cbr\u003e\n1999 Yamaha YFS200 Blaster\u003cbr\u003e\n2000 Yamaha YFS200 Blaster\u003cbr\u003e\n2001 Yamaha YFS200 Blaster\u003cbr\u003e\n2002 Yamaha YFS200 Blaster\u003cbr\u003e\n2003 Yamaha YFS200 Blaster\u003cbr\u003e\n2004 Yamaha YFS200 Blaster\u003cbr\u003e\n2005 Yamaha YFS200 Blaster\u003cbr\u003e\n2006 Yamaha YFS200 Blaster","brand":"NAMURA","offers":[{"title":"Default Title","offer_id":67559073120491,"sku":"186-40022","price":101.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/dd77-572a583cd9540_08612e8b-d8b2-43a9-9eb9-4d3a40c82278.jpg?v=1790770149","url":"https:\/\/ctracingservices.com\/products\/namura-na-40002-2k-high-compression-top-end-kit-for-yamaha-yfs200-blaster-66-44-mm-11-1","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}