7. CYLINDER HEAD (2-STROKE)/ CYLINDER/PISTON VITALITY 50 Combustion Chamber COMBUSTION CHAMBER DECARBONIZING Remove the carbon deposits from the combustion chamber Avoid damaging the combustion chamber wall and cylinder mating surface. Mating Surface CYLINDER HEAD INSPECTION Check the cylinder head for warpage with a straight edge and feeler gauge. Service Limit: 0.10mm replace if over Cylinder head Gasket CYLINDER HEAD INSTALLATION Install a new cylinder head gasket onto the cylinder. Install the cylinder head on the cylinder properly. Be careful not to damage the mating surfaces. 7-6