{"product_id":"wiseco-piston-kit-47-50-mm-yamaha-pw80-bw80-649m04750","title":"WISECO Piston Kit, 47.50 mm, Yamaha PW80\/BW80, 649M04750","description":"Piston Kit - 47.50 mm - Yamaha PW80\/BW80\n\u003cp\u003eThe WISECO Piston Kit is designed for select Yamaha PW80 and BW80 applications and features a 47.50 mm piston size. Forged from a high-silicon aluminum alloy, the piston is engineered for strength, dependability, durability and sustained performance. Its innovative forging design and piston skirt support increased horsepower and torque, while high compression ratio designs and ultra-stiff strutted forgings contribute to power-focused performance.\u003c\/p\u003e\u003cp\u003eThis kit features a forged piston, rings, wrist pin and circlips. Titanium nitride-coated rings and E-Coating on the crown, ring grooves and pin bore provide wear resistance and protection against micro-welding, galling and detonation. GP Series parts generally use less machining on the outside to help seal the bore for increased compression. Boost ports are removed for a more predictable powerband and increased pull on the top end.\u003c\/p\u003e\u003cp\u003eThe WISECO Piston Kit has manufacturer part number 649M04750. Cylinder sleeves must be purchased separately. Racer's Choice pistons may allow increased service intervals compared with conventional WISECO pistons and are intended for expert racers and tuners only. Listed fitment includes the 1985, 1986, 1989, 1990, 1992, 1994, 1998, 2001, 2003 and 2005 Yamaha PW80, plus the 1986 Yamaha BW80.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: WISECO\u003c\/li\u003e\n\u003cli\u003eProduct: Piston Kit\u003c\/li\u003e\n\u003cli\u003eSize: 47.50 mm\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: 649M04750\u003c\/li\u003e\n\u003cli\u003eMaterial: Forged high-silicon aluminum alloy\u003c\/li\u003e\n\u003cli\u003eKit Contents: Forged piston, rings, wrist pin and circlips\u003c\/li\u003e\n\u003cli\u003eCoating: Titanium nitride-coated rings and E-Coating on the crown, ring grooves and pin bore\u003c\/li\u003e\n\u003cli\u003ePerformance Design: Supports increased horsepower, torque and compression\u003c\/li\u003e\n\u003cli\u003eFitment: 1985, 1986, 1989, 1990, 1992, 1994, 1998, 2001, 2003 and 2005 Yamaha PW80; 1986 Yamaha BW80\u003c\/li\u003e\n\u003cli\u003eImportant Note: Cylinder sleeves must be purchased separately\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1983 Yamaha PW80\u003cbr\u003e\n1984 Yamaha PW80\u003cbr\u003e\n1985 Yamaha PW80\u003cbr\u003e\n1986 Yamaha Bw80\u003cbr\u003e\n1986 Yamaha PW80\u003cbr\u003e\n1987 Yamaha Bw80\u003cbr\u003e\n1987 Yamaha PW80\u003cbr\u003e\n1988 Yamaha Bw80\u003cbr\u003e\n1988 Yamaha PW80\u003cbr\u003e\n1989 Yamaha Bw80\u003cbr\u003e\n1989 Yamaha PW80\u003cbr\u003e\n1990 Yamaha Bw80\u003cbr\u003e\n1990 Yamaha PW80\u003cbr\u003e\n1991 Yamaha PW80\u003cbr\u003e\n1992 Yamaha PW80\u003cbr\u003e\n1993 Yamaha PW80\u003cbr\u003e\n1994 Yamaha PW80\u003cbr\u003e\n1995 Yamaha PW80\u003cbr\u003e\n1996 Yamaha PW80\u003cbr\u003e\n1997 Yamaha PW80\u003cbr\u003e\n1998 Yamaha PW80\u003cbr\u003e\n1999 Yamaha PW80\u003cbr\u003e\n2000 Yamaha PW80\u003cbr\u003e\n2001 Yamaha PW80\u003cbr\u003e\n2002 Yamaha PW80\u003cbr\u003e\n2003 Yamaha PW80\u003cbr\u003e\n2004 Yamaha PW80\u003cbr\u003e\n2005 Yamaha PW80\u003cbr\u003e\n2006 Yamaha PW80","brand":"WISECO","offers":[{"title":"Default Title","offer_id":68485363957995,"sku":"649M04750","price":141.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/148579.png?v=1794374446","url":"https:\/\/ctracingservices.com\/products\/wiseco-piston-kit-47-50-mm-yamaha-pw80-bw80-649m04750","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}