Question about Honda CB 750 Motorcycles

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Can oil leak from the oil pressure switch on my cb 750c

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Yes, when a switch needs to be replaced it will either keep your light on even though there is proper oil pressure or it will leak oil through it's body while still turning the light off. If your light is on it is easier to replace the switch than the oil pump so always try the switch first. Early CB750 Honda's had an automatic chain oiler that was quite messy(early 70's) You may want to check your countershaft sprocket seal also. Degrease the area, clean, and take for a drive then check for the fresh leak.

Posted on Apr 25, 2010

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I have a 1981 CB 750C and gas leaks from the gas shut off . . .

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If the leak is coming directly from above the oil filter it is more than likely the oil pressure switch is leaking. The seal around the Oil pressure switch could have gone bad and now it is leaking.

The oil pressure switch is located right above the the oil filter and above the cooling system cross pipe.

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