Brigss 31P777 Intek motor won't stay running

[sparky13815]

have a Craftsman lawn tractor with a Briggs engine. I have replaced the fuel filter, rebuilt the carb, and as a last resort, I replaced the carb. It will not stay running. It starts and the engine throttle control cycles up and down a few times then it dies. Seems to have fuel coming back into the carb from the breather tube. I need help.

 

[shiftsuper175607]

have a Craftsman lawn tractor with a Briggs engine. I have replaced the fuel filter, rebuilt the carb, and as a last resort, I replaced the carb. It will not stay running. It starts and the engine throttle control cycles up and down a few times then it dies. Seems to have fuel coming back into the carb from the breather tube. I need help.

Faulty diaphragm in the fuel pump?

 

[Tinkerer200]

Is your oil level way high?

Walt Conner

 

[Mikel1]

I agree with Tinkerer. Sounds like carb is flooding.