Where the cylinder and the crankcaes meet, the crankcase is also equipped with some cooling
fins, to harmonize the optical impression of the engine.
Precisely carved, you will find the previously decribed (sect. 2.11, mode of operation) transfer ports
in the cylinder. The two port openings located on the sides at the foot of the cylinder are
corresponding with the adjacent ports in the crankcase. When the cylinder is worn out, it can be
rebored and fitted with the next larger size of piston. The measurements for reboring the cylinder
are as follows: 56,25; 56,50; 56,75 and 57mm.
Image 12. Cylinder and Exhaust connectors Image 13. Cylinder head
A sparkplug that is necessary for the ignition of the gas/air mix, sits in the center of the cylinder
head. The cooling fins are oriented in direction of the supercharger blower.
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