Top Reasons why your mower stalls:
- Gas- how old is the gasoline you are using? Is it last years, month? The gas you get at the gas station has a shelf life of 3 weeks - tops! After three weeks the ethanol in the fuel attracts water and will make your mower hard to start or not start at all. Even if you drain your fuel at this point most likely it will still not start until the carb is removed and cleaned. Which brings us to the next conclusion. Once the water from the ethanol reaches your carb it will cause your mower to stall.
- Gas Cap - this sounds too good to be true right? It happens more frequently than you think. If you gas cap is clogged and not venting, it will not get gas to your carburetor. Your tractor will start and run for a couple minutes and then die. Once it cools down it will start back up again and then die. Take your cap off and test run the mower if it stays running, its your gas cap.
- Mice!- Check under your flywheel cover! Use a flashlight and make sure they didn't make a nice home for their family. If they have the latest and coolest "pad" it will block the air and overheat your engine causing it to "blow-up". We consider this fatal to your engine. If they get hungry, they will go for your air filter and expensive wires like your ignition coil.
- poor maintenance- When is the last time you looked at your air cleaner? If air can't get in then your mower will either stall or not start at all. If you have dusty conditions your air cleaner needs to be changed twice a season. Sometimes it is as easy as changing your sparkplug! Simple inexpensive things you can do to save your mower!