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New air filter. compression was 70 pounds I’m thinking a bad valve at this point

No

New 89 octane. also cleaned out the gas tank.

Thanks for the info. I appreciate it

You are correct. Sputters at full speed with no load.

The idle is not the issue as it is as it should be. The issue is it sputters when idling. I’m thinking it might be a valve issue

The speed of the idol is not the issue as the idle speed is very high. The issue is it randomly sputters and almost like a valve has a problem. I’ve tried tech Ron in it along with Marvel mystery oil. It recycles the grass in incredibly small pieces and runs beautifully except for the sputter...

Yes

Brand new fuel and I added Marvel Mystery oil just to see if it would help which it did not. I replaced the carburetor and all the gaskets along with the tube. I am pretty mechanically inclined. This one has me stumped based on the work I’ve done. At this stage of the game. I’m thinking it might...

Thank you

Also the governor spring is attached on the top of the carburetor

unfortunately the picture I took won’t download as you stated due to its size. Can you give me more recommendations.I appreciate your assistance

sorry for the confusion, but she is idling at full throttle with a sputter.

I’m wondering if it can be a burnt valve?

Serial number is 270000330

The model is 20056 126T02-0209-B1

I have a Toro lawnmower with a 6.75 190cc Briggs & Stratton motor on it that continues to sputter when idling. I have changed the oil, the spark plug, the air filter and the carburetor and it still sputters.