The oil level is absolutely critical on these - even if its just a tiny bit too high the oil gets thrown out. If your engine is very old though, excess wear between the piston and cylinder could be causing too much pressure inside the engine.
John
December 2007
When ever this occurs you have comppression from the cylinder bypassing the rings and going into the crankcase ..make sure air filter ect are clean .......make sure oil is not overfilled
bg
December 2007
I can answer this question...
briggs and strattonengine model 252707 oil problembriggs and?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix lawn mowers.