6. CYLINDER HEAD/VALVES PEOPLE 250 Cylinder Dowel Pins Remove the dowel pins and cylinder head gasket. Remove the cam chain guide. Remove all gasket material from the cylinder head mating surface. Be careful not to drop any gasket material into the engine. Cam Chain Guide Cylinder Head Gasket Cylinder Head CYLINDER HEAD DISASSEMBLY Remove the valve spring cotters, retainers, springs, spring seats and valve stem seals using a valve spring compressor. · Be sure to compress the valve springs with a valve spring compressor. · Mark all disassembled parts to ensure correct reassembly. Special Valve Spring Compressor Valve spring compressor E040 Combustion Chamber Remove carbon deposits from the exhaust port and combustion chamber. Be careful not to damage the cylinder head mating surface. 6-7