On my sward mower I put grease where on earth the gas go I put unmarked gas surrounded by near and it putts when I run it.? I emptied the old-fashioned gas out and put new gas surrounded...

I emptied the old-fashioned gas out and put new gas surrounded by there and when Irun the grassland mower it putts Like it wants to cut sour.
Buy a gallon of high-ranking octane (premium) gas with a cleaner stabilizer in (like Cheveron's Techron). Empty the gas container refill near the new gas. Run the mower until the entire container runs out.

It may putter for a while, but this should do the trick.
It will have to run next to the new gas surrounded by it long enough to grasp the oil out of the carburetor. It should one and only take a few minutes. If that doesn't work I believe that you will have to remove the carburetor and flush it out. I would lift the air filter sour and while it is running I would close the choke a bit to get more gas flowing through the carburetor. You may also hold to do a better job of cleaning the fuel container of oil.

Keep trying it should straighten out.
Answers:    Your not supost to just pour grease in it. Your suppost to mix the grease with the gas.

Try (when the mower is rotten of course) to see if anything is clogging the exhaust. Make sure your starting it on level ground.

Hope that help
You fouled the plug replace your plug get 2or 3 basically in crust you need them if it not gas grease mix pull your plug out
move the spark plug lead out of the way and freshly pull
the Cord until it looks resembling all the grease is out
it going to make a mess it will come out your plug hole
Are you sure you are supposed to put grease where the gas go?? If you are certain that your mower runs on a gas/oil mix you really have need of to do the mixing in a separate container.
Mix the proper amounts of gas and grease into a smaller gas can and mix it well past putting it into your gas tank.
The rough languish you are experiencing may be caused by the reality that the mixture is separated too much...proper ratio of the mixture is critical to the life of your engine as okay.
The residual oil may be fouling the spark plug. Remove the spark plug and verbs the electrode with a business card. You may want to do this more than once as the oil is burned through. Or basically buy a new spark plug.