{"product_id":"namura-040-over-bore-top-end-repair-kit-for-honda-foreman-500-2005-2011-93mm","title":"Namura .040 Over Bore Top End Repair Kit for Honda Foreman 500 2005-2011 93mm","description":"\u003ch2\u003eNamura .040 Over Bore Top End Repair Kit for Honda Foreman 500\u003c\/h2\u003e\u003cp\u003eThis Namura .040 Over Bore Top End Repair Kit provides a complete piston, rings, gaskets, and wrist pin for rebuilding the top end of Honda Foreman 500 engines from 2005 to 2011, fitted with a 93mm bore size. Designed for a .040 inch oversize, this kit restores compression and power in worn cylinders without requiring a full cylinder replacement.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura .040 Over Bore Top End Repair Kit is a comprehensive solution for refreshing the upper cylinder assembly on Honda Foreman 500 models manufactured between 2005 and 2011. It includes a precision‑machined piston with rings, a complete gasket set, and a wrist pin, allowing a reliable .040 over bore rebuild that restores engine performance and extends the life of your ATV. This top end repair kit is engineered to meet or exceed OEM specifications, giving you a dependable repair option for your Foreman 500.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePiston is cast from high‑silicon aluminum alloy for reduced expansion and quiet operation\u003c\/li\u003e\n\u003cli\u003ePrecision‑ground ring set provides excellent cylinder seal and oil control\u003c\/li\u003e\n\u003cli\u003eComplete gasket set includes head gasket, base gasket, and all necessary seals\u003c\/li\u003e\n\u003cli\u003eWrist pin is carburized for wear resistance and includes retaining clips\u003c\/li\u003e\n\u003cli\u003e.040 oversize allows clean‑up of cylinder bore imperfections\u003c\/li\u003e\n\u003cli\u003eKit is balanced and weight‑matched for smooth engine operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Honda Foreman 500 (2005-2011)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eEngine rebuild after top‑end wear or loss of compression\u003c\/li\u003e\n\u003cli\u003eRestoring power and reliability in farm, trail, or utility ATVs\u003c\/li\u003e\n\u003cli\u003eReplacing damaged pistons or worn rings during a comprehensive overhaul\u003c\/li\u003e\n\u003cli\u003eAs a preventive maintenance upgrade when cylinder is already bored oversize\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 Over Bore Top End Repair Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 oversize (93mm nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Engine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHonda Foreman 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2005-2011\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 Do I need to have my cylinder bored to use this .040 over kit? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this kit is intended for cylinders that have been bored to the .040 oversize dimension; a proper hone and bore job by a qualified machine shop is recommended.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the kit include a new cylinder or just the internal parts? \u003cstrong\u003eA:\u003c\/strong\u003e This is a top end repair kit containing piston, rings, gaskets, and wrist pin only; the cylinder itself must be reused or replaced separately.\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":44949777907798,"sku":"SZ1F14747","price":239.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_4abd6eef-4724-4bbb-b83c-029fece48b35.jpg?v=1781398839","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-top-end-repair-kit-for-honda-foreman-500-2005-2011-93mm","provider":"Solid Spare","version":"1.0","type":"link"}