drain it.
When you overfill oil in a lawnmower it will smoke when you tip it sideways while mowing,it has no harm
Yes 10w30 is a good oil for snowblower or lawnmower.
What problems can occur from engine oil overfill
If the wrong oil is used in a lawnmower, do not start it. Simply drain the oil as completely as possible and fill with the proper oil.
walmart
to put the oil in the lawnmower's crankcase would be fine, so long as it is an appropriate viscosity.
You'll blow a gasket .
You'll blow a gasket .
Depending on the model of the Craftsman lawnmower, there is either an oil plug underneath the deck of the mower which needs removed to drain the oil or the lawnmower needs tipped on it's side to allow the oil to drain out through the oil cap area. Once oil has drained you will want to refill the oil until the dipstick registers "full".
It is possible to overfill an engine with oil. It can cause some damage, but mainly it will decrease power and fuel economy because the crankshaft is turning through the oil which adds resistance to the engine.
Depending on what lawnmower you have just simply take the spark plug out and tilt lawnmoer
Not really sure what you're getting at. If your lawnmower engine is a 2-stroke then you need a mixture of oil and gas to run it.