Cylinder Works 20004-K02 15-23 Yamaha YFM 700 R Raptor 700cc Standard Bore Cylinder KitCylinder Works 20004 K02 15 23 Yamaha YFM 700 R Raptor 700cc Standard Bore Cylinder Kit Description Cylinder Works Standard Bore Cylinder Kit Fits Models YFM 700 R Raptor (15 23) YFM 700 R Raptor SE (15 23) Specs Uses Vertex #23965 Compression Ratio10. 0: 1 Cylinder Diameter102 mm Cylinder Kit Type: Standard Bore Displacement: 686 cc Engine Type: 4 Cycle Includes: Cylinder, Piston Kit, and Top End Gasket Kit