{"product_id":"yamaha-787-11631-02-97-engine-piston-assembly","title":"Yamaha 787-11631-02-97 Engine Piston Assembly","description":"\u003ch3 data-section-id=\"nq8ynu\" data-start=\"0\" data-end=\"18\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"19\" data-end=\"424\"\u003eThe Yamaha 787-11631-02-97 Piston is a combustion component used in small engine and kart racing engine cylinder systems. Commonly installed in Yamaha KT100 and RC100 engines to compress the air-fuel mixture for efficient combustion and power generation. Maintenance teams and engine technicians use this part for repair, rebuild, and replacement of worn piston assemblies to restore engine performance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"plkbhx\" data-start=\"426\" data-end=\"445\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"446\" data-end=\"973\"\u003eThe Yamaha 787-11631-02-97 Piston is used in Yamaha small displacement engine platforms where precise combustion and compression are critical for performance. It is commonly found in Yamaha KT100 kart racing engines and similar 2-stroke applications, operating within the cylinder to convert combustion pressure into mechanical motion. This component is essential during engine rebuilds and maintenance cycles to maintain compression, reduce blow-by, and ensure consistent engine output. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"68ulmp\" data-start=\"975\" data-end=\"1006\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1007\" data-end=\"1787\"\u003e• Brand: Yamaha\u003cbr data-start=\"1022\" data-end=\"1025\"\u003e• Part Number: 787-11631-02-97\u003cbr data-start=\"1055\" data-end=\"1058\"\u003e• Product Type: Engine piston\u003cbr data-start=\"1087\" data-end=\"1090\"\u003e• Function: Compresses air-fuel mixture and transfers combustion force\u003cbr data-start=\"1160\" data-end=\"1163\"\u003e• Application: Small engine \/ kart racing engine cylinder system\u003cbr data-start=\"1227\" data-end=\"1230\"\u003e• Fitment: Yamaha KT100, RC100, and similar 2-stroke engines \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1328\" data-end=\"1331\"\u003e• Size: Standard bore configuration (approx. 51–52 mm range across variants) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1445\" data-end=\"1448\"\u003e• Material: Cast or forged aluminum alloy\u003cbr data-start=\"1489\" data-end=\"1492\"\u003e• Mounting Location: Cylinder bore within engine block\u003cbr data-start=\"1546\" data-end=\"1549\"\u003e• System Role: Converts combustion energy into mechanical motion\u003cbr data-start=\"1613\" data-end=\"1616\"\u003e• Supersession: Related variants include 787-11631-06-97 and similar revisions \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1732\" data-end=\"1735\"\u003e• OEM Status: Genuine Yamaha replacement component\u003c\/p\u003e\n\u003ch3 data-section-id=\"1ln9bp8\" data-start=\"1789\" data-end=\"1815\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1816\" data-end=\"1896\"\u003e• Yamaha 787-11631-06-97\u003cbr data-start=\"1840\" data-end=\"1843\"\u003e• Yamaha 787-11631-05-97\u003cbr data-start=\"1867\" data-end=\"1870\"\u003e• Yamaha 787-11631-03-97\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"New","offer_id":51733928771886,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_0bd9bed1-8dba-48da-b1a4-d105f7a84ba6.jpg?v=1770604232","url":"https:\/\/plgautomation.com\/products\/yamaha-787-11631-02-97-engine-piston-assembly","provider":"PLG Automation ","version":"1.0","type":"link"}