Yamaha YZ250F 2008 2009 2010 2011. Matched Wiseco Top End & Hot Rods Bottom End. Hassle Free, direct bolt in equipment, no machining or boring required. Top and Bottom End with full gaskets and seals. Includes piston kit, complete crankshaft assembly, main crank bearings, and full gasket kit with oil seals.
Complete top to bottom engine rebuild. Top End: Forged Wiseco premium piston kit - Stock 13.5:1 Compression.
Wiseco top end gasket kit is constructed of premium materials to produce the best sealing technology available exceeding OEM standards. Superior strength/weight ratio utilizing aerospace alloy with race proven designs. CNC machined with optimal cam shape and profile for peak HP and service life. Premium top end needle bearing/piston pin.Precision machined, highest quality materials for strength and reduced friction. Extended life and sustained power. Bottom End: Hot Rods Crank Assembly w/ gaskets and seals. Each kit contains everything you need to complete your rebuild the right way, the first time- crankshaft and connecting rod, all applicable bearings, top and bottom end full gasket set complete with oil seals made to meet or exceed OEM. HotRods connecting rods are double forged from a dedicated forging and feature shot peening, oil slots, and coated bronze thrust washers.
Bottom end gasket kits are made from premium materials, exceeding OEM standards, to provide exceptional seal between critical mating surfaces. Main bearings are manufactured to the highest quality standards. Each is case hardened for maximum life and smooth operation at high RPM?Corrosion resistant surface treatment to prevent corrosion and pitting over long term use or storage. This will add to the life as well the strength of the assembly. Top end of rod is bushed for oil retention and eliminates pin galling. The bottom end rod bores are case hardened to 58-62 RC to optimize bearing running surface.
The crank pin bearings are manufactured from the highest quality, hot rolled steel case hardened to 58-62 RC to extend the lifetime of the assembly. Caged needle roller bearings to provide the highest possible RPM.
Some items may have a slightly different appearance than what is shown in the picture. Please review the entire description to verify proper fitment.This item is in the category "eBay Motors\Parts & Accessories\Motorcycle & Scooter Parts & Accessories\Engines & Engine Parts\Other Engine Parts". The seller is "apex*racing" and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South Africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Bahrain, Republic of Croatia, Malaysia, Brazil, Chile, Colombia, Costa Rica, Panama, Trinidad and Tobago, Guatemala, Honduras, Jamaica, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Ecuador, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Vietnam.