gravely loosing power

[FourSeasons]

My Gravelys loosing power. It trys to keep running after I turn it off. It boggs down in the grass. I changed the plugs and got no results. Any suggestions would help. Thanks

 

[Captainbigwood]

My Gravelys loosing power. It trys to keep running after I turn it off. It boggs down in the grass. I changed the plugs and got no results. Any suggestions would help. Thanks

Replace fuel filter and fuel lines damaged by ethanol.