What would cause oil to come out of the muffler?
I last used the mower a couple weeks ago and all was fine. Today I go to start it as always and it doesn't start right away like normal. I pull it a couple more times and I see oil dripping out of the muffler. It finally starts and then dies. Starts again and sputters a bit as the oil burns off. After a couple mins it runs just fine, like nothing ever happened.
The mower is a Briggs and Stratton 5hp 4 cycle gasoline engine from Yard Machines...
mower wheelies will cause that.