Bones
CB750 Member
Just found the forum while trying to get idea's on whats causing a major oil leak from my buddies 74 CB750 SOHC4. I also have a 1971 which I am in the process of Caffing, anyway if anyone has any advice on the cause of this leak I would be grateful if you could share it.
Problem:- Oil is blowing out of the oil tank breather hose in large quantities (confirmed that this is the source of the leak).
The oil level is correct and will leak until no oil is left. The oil and vent lines are hooked up correctly and was running fine like this last year. The top / rocker cover vent line is open and vents well.
I do not know about the rear line / gearbox line and have not inspected it.
Any help would be apprciated.
Terry
Problem:- Oil is blowing out of the oil tank breather hose in large quantities (confirmed that this is the source of the leak).
The oil level is correct and will leak until no oil is left. The oil and vent lines are hooked up correctly and was running fine like this last year. The top / rocker cover vent line is open and vents well.
I do not know about the rear line / gearbox line and have not inspected it.
Any help would be apprciated.
Terry