L120 runs then shuts off

[weavertg14543]

Running a l120 automatic mower.

BG20252
Gxl120A016455.

It will run and mow for about 30 minutes then shuts off. Can get it tonstart again one more time with full choke. But then it shuts off again. We end up letting it sit till the next day then it starts up and runs fine till it shuts off again.

I have replaced the fuel filter, spark plugs, cleaned the carburetor, and taken the engine shroud off and made sure there was not any build up on the engine causing excessive heat build up.

Not sure what else to do here does anyone have any ideas?

 

[BATTY54]

Check your fuel cap, the vent in the center plugs up causing a vacuum in the tank. A small wire poked through the hole will fix that or take the whole thing apart and clean it..

 

[weavertg14543]

Ill give it a shot