Outdoor Power Equipment and Small Engines - engin running problem

Hello, currently using about 85 model snapper with 6hp tec. motor. Been running fine and the other day i started it after about a month of setting up and it was kinda running rough.
pulled the plug and it was black, but also old. bought a new plug and still seemed to run rough. pulled the new plug and it to had a burned look to it.. any help would be appreciated. if you need more info i can get that to. thanks

Burned look is normal. The rough running problem is probably do to the carb. There should be two screws on the carb. While engine running, turn those screws till the engine runs right. You may need to go clockwise or counter clockwise with them

Hello mr.blue!

Remove the screw that holds the bowl on the carburetor. Pull the bowl off and clean it out well, then look at the screw. It should have some small holes in the sides of it. Make sure they are clear. Reassemble. If there are adjustment screws (one on the bottom, and one on the side of the carb), I would leave them alone since it was running well before. If the engine doesn't run well after cleaning the carb, then adjustment may be necessary.

thanks for the help, will try once the rain lets up,,

I found a plugged air filter will make it run rich and very bad.Clean or replace it.