Seller notes

Athena 58mm Complete 144cc Big Bore Motor Rebuild Kit!This is the best and most reliable rebuild kit on the market!Fits Yamaha YZ125 2 Stroke Dirt Bikes Years 2001 2002 2003 2004 ONLY (Check Motor Vin To Confirm Year Before Ordering) This kit includes:58mm 144cc Nikasil Athena Stock Bore CylinderAthena 54mm Coated Piston Kit (Includes, Piston, Pin, Rings & Clips)Athena HeadAthena Head Stud KitAthena Power ValvesWiseco Heavy Duty Crank Shaft Wiseco Heavy Duty Main BearingsWiseco Wrist Pin Bearing...

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