WORKS ON ALL’01-13 YAMAHA YZ250F and WR250F MODELS – THIS IS A 310cc REBUILD TO YOUR MOTOR, ALONG WITH A FULL RACE PORT AND POLISH TO YOUR HEAD, THAT YOU SEND IN TO US. Used core bottom end – cases, transmission, counter balancer, hardware, etc. All other parts below are new. New BPR 83mm cylinder. 83mm Wiseco forged big bore piston. Nitrite coated piston rings. Hotrods +3mm stroker crankshaft assembly. Cometic 83mm MLS big bore head gasket. Any miscellaneous OEM parts needed. Complete tear down, clean, and inspect all parts. Set piston ring gap. FULL RACE PORT AND POLISH TO YOUR CYLINDER HEAD. 3 angle valve job to your cylinder head. Lap and install valves. Runs on pump or race gas. ARE YOU INTERESTED IN HAVING YOUR MOTOR REBUILT WITH THE ABOVE PARTS? NO PROBLEM, WE HAVE YOU COVERED. We are BPRATV, offering you the best in parts and service for over 20 years. PRICES AND LISTINGS ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE. We stock the same parts from different manufacturers so that when back orders occur we have a part that is equal in quality and cost to send, preventing what can sometimes be long waits. This would be the only reason your order might vary slightly from the description, and the part that is subbed will always be comparable quality. If you only want a specific brand just ask and we will let you know if it is out of stock and for how long. Once a part has been installed or prepped for installation it is no longer eligible for return. This product is NOT DIY. Over 99% of people in the world are not qualified to build an engine, and the person installing the motor on the bike and tuning it is responsible for ensuing it works properly. We ALWAYS STRONGLY recommend work be done by a qualified, experienced mechanic. Please work with us and we will ALWAYS work with you. This item is in the category “eBay Motors\Parts & Accessories\Motorcycle & Scooter Parts & Accessories\Engines & Engine Parts\Engine Rebuild Kits & Components”. The seller is “bpratv” and is located in this country: US. This item can be shipped worldwide.
- Brand: Yamaha YZ250F Hotrods Athena Wiseco Cometic NGK BPR
- Engine Type: 4-Stroke
- Type: Engine Rebuild Kit
- Machine Type: Off-road Motorcycle, Dirt bike
- OE/OEM Part Number: 5XC-11400-22-00, 5XC-11311-02-00
- Items Included: Cylinder, Stroker crankshaft
- Manufacturer Part Number: 21002-k01 4149 k021 4982m08300 808671
- Features: Get best YZ250F big bore stroker kit
- Performance Part: Yes