Kawasaki S2 (1972-1973) [39/129] Crankcase

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Loosen the kick stopper 10 CRANKCASE The crankcase which is divided into an upper and lower section is made of die cast aluminium alloy Two pins aligh the upper and lower sections which arc held together with studs and nuts and the joint is sealed with liquid gasket Kawasaki Bond Gasoline air mixture from the carburetor is drawn into the crankcase where it undergoes preliminary compression prior to entering the combustion chamber For that reason each crank chamber in the crankcase is partitioned from the next by oil seals on the crankshaft making each chamber independently pressure tight To prevent leakage of the oil used for lubrication of the transmission gear change drum etc oil seals are also pressed onto the left ends of the output and drive shafts In addition there is a breather hole in the transmission housing to prevent oil leakage by not allowing pressure to build up from the oil expansion as it warms up To take care of main bearing lubrication an oil passage is provided in the upper crankcase During assembly and disassembly be careful that this passage does not become clogged Turn the crankcase assembly upside down a remove the mounting nuts Tap the lower crankcase and shift shaft mounti lightly with a mallet so that all the shafts e remain in the upper crankcase when it disassembled 1 Disassembly Remove the output shaft oil receiver NOTE The crankcase cannot be disassembled

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