Lawn mower serve?
Answers: Sounds approaching you overfilled it with grease. You should never fill it above the full dot on the dipstick. Now you will have to drain some out. Or drain it adjectives out and start over. There is a drain plug on the bottom of the engine. Remove the sparkplug wire. Set the mower on some blocks to get hold of it high plenty to work on. Locate the plug on the bottom of the engine. With a pan below it, let it drain. Put the plug rear in and put grease in the engine. Most help yourself to a bit less than a quart but check it next to the dipstick. Change the air filter because it will be soaked next to oil. Put the spark plug flex back on and start it up. It may smoke a bit but should clear up.
It sounds close to you added too much oil. When you remove the grease fill trilby, there should be a short time "stick" attached to it. The oil horizontal should be about 1/2 style up the stick. If you filled the grease to the top, you will have to drain some out.
Are you sure you put the grease in the grease reservoir, and not the gas tank? If you get them reversed, you would have like symptoms. Then you will have to drain the grease and gas and start over.
There should be a plug to drain the oil on the motor. Without knowing what motor you enjoy, I would suggest you ask a friend who knows going on for motors to give you a mitt.
I had an older Briggs and Stratton that didn't have a dip stick. There be a plug that unscrewed on the side of the case. Fill to freshly below the lower lip of the hole. It had a splash grease system, no pump. If I remember right the crank dipped into the oil at around the bottom third of the circle. If it is a Briggs go ahead and experiment. They are incredibly tough and concrete to damage. You might try googling the gross you have and see if in that is a service manual online.
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