7. CYLINDER HEAD (2-STROKE)/ CYLINDER/PISTON VITALITY 50 Dowel Pin CYLINDER/PISTON (4-STROKE) REMOVAL Remove the cylinder head. (Refer to the chapter 6) Remove the two dowel pins and cylinder head gasket. Gasket Remove cam chain guide and then remove cylinder. Cam Chain Guide Remove the cylinder gasket and dowel pins. Dowel Pins Clean any gasket material from the cylinder surface. Be careful not to drop foreign matters into the crankcase. 7-13