Classic Motorcycle Mechanics

Motor time…

The importer of the K2 had said that the engine was in ‘some’ working order so maybe it might be possible to get it going properly without giving it a complete overhaul, but first a service.

I started by changing the engine oil. The CB750 was unusual for a Japanese bike in having a dry sump circulation system: the bulk of the oil is stored in a tank kept behind a side panel, rather than in an engine sump. The oil pump is in two parts: one (the delivery side) draws oil from the tank and pressurises it to be sent around the

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