CT 300.03 Single Cylinder Engine w. Variable Compression for CT 300

Compression adjustment: Minimum combustion chamber / maximum compression (left), maximum combustion chamber / minimum compression (right) 1 cylinder head,  2 cylinder with cooling jacket,  3 rotating cylinder height adjustment mechanism,  4 tensioning device,  5 crankcase,  6 locking pin (prevents the cylinder twisting when the nut is turned),  7 groove for locking pin,  8 combustion chamber