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Hi,
I'm in a middle of restoration of an M18 .
If the bike is standing for several days, most of the oil leave the oil tank to the bottom of the engine.
As I know, the oil pump was restored.
I disassembled the oil pump and found that there is a slight gap between the gear wheels to the covers. what should be the max gap?
is there any other reason for the phenomena?
thanks,
Ron