{"product_id":"namura-top-end-repair-kit-for-yamaha-dt125lc-mtx125-rd125lc-040-over-bore-57mm","title":"Namura Top End Repair Kit for Yamaha DT125LC MTX125 RD125LC .040 Over Bore 57mm","description":"\u003ch2\u003eNamura Top End Repair Kit for Yamaha\u003c\/h2\u003e\u003cp\u003eThis Namura top end repair kit is designed for Yamaha DT125LC, MTX125, and RD125LC models, featuring a .040 oversize bore at 57mm to restore engine compression and performance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis top end repair kit from Namura includes all necessary components for rebuilding the cylinder and piston assembly on Yamaha 125cc two-stroke engines. It is specifically intended for the DT125LC, MTX125, and RD125LC models when a .040 over bore is required, helping to bring worn engines back to like-new condition. The kit provides a reliable solution for restoring power and extending engine life.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined piston with .040 oversize for a tight cylinder fit\u003c\/li\u003e\n\u003cli\u003eDurable ring set reduces blow-by and maintains compression\u003c\/li\u003e\n\u003cli\u003eComplete gasket set ensures a leak-free seal\u003c\/li\u003e\n\u003cli\u003eManufactured to strict tolerances for consistent performance\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin and circlips for secure piston installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha DT125LC\u003c\/li\u003e\n\u003cli\u003efor Yamaha MTX125\u003c\/li\u003e\n\u003cli\u003efor Yamaha RD125LC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRestoring top-end performance in vintage Yamaha enduro and street bikes\u003c\/li\u003e\n\u003cli\u003eRebuilding engines after a top-end failure or worn piston\u003c\/li\u003e\n\u003cli\u003eReplacing original cylinders with an overbore to eliminate scoring\u003c\/li\u003e\n\u003cli\u003eMaintaining competition bikes for motocross or trail riding\u003c\/li\u003e\n\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\u003e57mm (.040 over stock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha DT125LC, MTX125, RD125LC\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 Will this kit work with a standard bore cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, this is specifically for a .040 over bore; you must have your cylinder bored to 57mm to use this kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the kit include a cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, only the top end components such as piston, rings, wrist pin, circlips, and gaskets are included.\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":44890637828182,"sku":"SZ1F12131","price":142.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_0b165f42-55a2-4c2c-9dda-bf3799e8d716.jpg?v=1781142340","url":"https:\/\/www.solidspare.com\/products\/namura-top-end-repair-kit-for-yamaha-dt125lc-mtx125-rd125lc-040-over-bore-57mm","provider":"Solid Spare","version":"1.0","type":"link"}