You could, but this could take sometime and would be very messy and smoky. Best thing to do would be to drain off the excess but either with a friend tipping the mower so you can drain oil off from the filler tube ot locate the sump drain plug on the underside of the engine (but these rarely undo easily) Personally a suction device is what most professionals use, but unless you know someone with one you can borrow, then tipping t out the way it went in is probably the best option.
pleasant
April 2009