I don't know what's happening here. If I run the saw without the bar, I get 1-2 drops a second coming out of the oil port. When I put the bar on it, it runs wet for a bit then eventually dries up and smokes. Where do I look? There's a little rubber bushing that goes around the oiler adjustment screw that is rotted... but it shows no signs of leakage. This is the first time I've had an oil problem so I have no idea where to look and tips would be greatly appreciated!