I have a Scag turf tiger 25 hp kohler engine . When I start it up it runs fine for 10 minutes but it will quit suddenly , then starts
back up like nothing happened. May run for another 5 minutes ok then quits. I replaced the ignition coils, last summer thinking one was going bad. Hooking up a spark plug tester and an electrical probe it show ok till it quits suddenly, but starts right back up. I drive it between my house and my daughters to mow both lawns. It may quit 3 times between the two and maybe once after 10 minutes of mowing. But then again starts right back up. The electrical shut off at the carb is ok because it shuts off gas when I'm done mowing and the gas isn't still running the engine .Any thoughts would be helpful. Next thing I will again do is clean all the electrical limits and the wire connection going to the starter.
back up like nothing happened. May run for another 5 minutes ok then quits. I replaced the ignition coils, last summer thinking one was going bad. Hooking up a spark plug tester and an electrical probe it show ok till it quits suddenly, but starts right back up. I drive it between my house and my daughters to mow both lawns. It may quit 3 times between the two and maybe once after 10 minutes of mowing. But then again starts right back up. The electrical shut off at the carb is ok because it shuts off gas when I'm done mowing and the gas isn't still running the engine .Any thoughts would be helpful. Next thing I will again do is clean all the electrical limits and the wire connection going to the starter.