Pulled the carb and cleaned it, ran good for about an hour. Next mow ran about an hour and started sputter like it was running out of fuel, then would restart and run for another twenty minutes, do the sputter and die.

Found the plastic tube from valve cover to fuel pump had holes so changed it. Full service, oil, air cleaner, fuel filter, plugs. I then performed a full clean up pulled every cover and clean all the old grass and dirt. I have two acres took a few hours to mow no issues other than that strange surge when not under load. When I got it home I mowed my yard the engine seemed to search when it was not under load. She told me my father always said it had some issue but was not sure what was wrong. When my father passed away my mother was not going to run a zero turn so I took her to get a riding mower and took this z335e.

So write the is cause I am at my wits end with this mower. I have sprayed carb cleaner around the intake listening for any changes. Today I replaced the fuel line from the tank to the carb. Buy a carb rebuild kit, pull carb and rebuild, no difference. Try again same issue replace the coil on the carb. Pull the cover re gap coils for shitzngiggles. No change in sound of I pull right or left as the sputter occurs. Same situation 45 minutes started to sputter and die, ok maybe coils in-line spark tester coils show good as it’s sputtering. Took to auto parts to test, needed a charge to test, so just bought a new battery. Thought maybe I had a charging system issue and the battery was dying shows 13 volts.

John deere z335e blade removal