{"product_id":"namura-oem-style-top-end-kit-65-92-mm-standard-bore-6-6-1-compression-for-yamaha-yfs200-blaster-na-40003k","title":"NAMURA OEM-Style Top End Kit 65.92 mm Standard Bore, 6.6:1 Compression for Yamaha YFS200 Blaster | NA-40003K","description":"\u003cp\u003eRefresh the top end of your Yamaha YFS200 Blaster with the NAMURA OEM-style Top End Kit, manufacturer part number NA-40003K. Designed for a standard-bore 65.92 mm piston and 6.6:1 compression ratio, this complete kit includes the piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit needed for a comprehensive top-end rebuild.\u003c\/p\u003e\u003cp\u003eThe NAMURA piston features MOS2, or Teflon\/molybdenum, coated skirts applied through a rolled-on process for a strong, durable bond. This coating helps reduce friction, improve heat transfer, and minimize the risk of cold seizures. The machined smooth head reflects combustion heat and helps reduce carbon buildup, while the anodized dome improves heat resistance and durability. NAMURA’s hypereutectic casting process adds silicon for controlled expansion, increased wear resistance, and dependable performance under elevated cylinder temperatures.\u003c\/p\u003e\u003cp\u003eThis top-end kit fits Yamaha YFS200 Blaster models from 1988 through 1997. It is intended for standard-bore applications and is suitable for replacing worn or damaged top-end components while maintaining the original engine configuration. Verify the model year, bore specification, and engine condition before installation. The kit is supplied under NAMURA vendor part number NA-40003K and is designed specifically for the listed Yamaha Blaster fitment.\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, retaining clips, top-end bearing, and gasket kit\u003c\/li\u003e\n\u003cli\u003eStandard-bore 65.92 mm piston with a 6.6:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eMOS2 Teflon\/molybdenum-coated skirt helps reduce friction, improve heat transfer, and minimize cold-seizure risk\u003c\/li\u003e\n\u003cli\u003eMachined smooth piston head reflects combustion heat and helps reduce carbon buildup\u003c\/li\u003e\n\u003cli\u003eAnodized dome improves heat resistance and piston durability\u003c\/li\u003e\n\u003cli\u003eHypereutectic casting process provides controlled expansion and increased 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-40003K\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":67559065026795,"sku":"186-4003","price":97.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/2fcc-5e99b5b166f0d.jpg?v=1790770102","url":"https:\/\/ctracingservices.com\/products\/namura-oem-style-top-end-kit-65-92-mm-standard-bore-6-6-1-compression-for-yamaha-yfs200-blaster-na-40003k","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}