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YZ250F YZ 250F Big Bore Stroker 83mm Complete Rebuilt Motor Engine Rebuild 320cc


Compatible Vehicles
Submodel Year Make Model
-- 2013 Yamaha YZ250F
Team Yamaha 2013 Yamaha YZ250F
-- 2012 Yamaha YZ250F
Team Yamaha 2012 Yamaha YZ250F
-- 2011 Yamaha YZ250F
Team Yamaha 2011 Yamaha YZ250F
-- 2010 Yamaha YZ250F
-- 2009 Yamaha YZ250F
-- 2008 Yamaha YZ250F
-- 2007 Yamaha YZ250F
-- 2006 Yamaha YZ250F
50th Anniversary 2006 Yamaha YZ250F
-- 2005 Yamaha YZ250F
-- 2004 Yamaha YZ250F
-- 2003 Yamaha YZ250F
FITS ALL 2003 TO 2013 YZ250F MODELS!

83mm big bore cylinder
83mm forged Wiseco piston
Hi temp rings
Wrist pin
Hotrods +3mm stroker crank with rod
Crank bearings
Counter balancer bearings
Water pump bearing
Transmission bearings
Shift cam bearing(s)
Head stud kit
Complete gasket kit - head, base, exhaust, crankcase side covers
Seal kit for cases
Valve stem seals
Cam chain
Clutch kit
Stickers stickers stickers  

*Photo for example purposes only.  This is a bolt on kit with no machining required, and the piston uses pump or race gas.  Everything is new in the original packaging and the original manufacturer's warranty applies*

Please check your order thoroughly when you receive it and contact us if you have any issues at all.  If you are not 100% happy with what you receive you are welcome to return it for a full refund, not questions asked!  Thanks!!

*We recommend that this be installed by a qualified mechanic with experience doing this type of work.  Warranty does not cover any failure that is a result of improper installation, improper break in, improper tuning, or misuse.  For any warranty to be considered the part(s) in questions must first be sent to us for inspection.  We can not warranty anything based on phone calls or photos alone.