Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hi, my name is***** and am happy to assist with the problem you are having. I am sorry to hear about the problem you are having with your machine.
I have a couple questions to help make sure that I understand the problem correctly.
Does your mower have a PTO clutch that engages the blades or do you have to use a handle to engage them?
Does the mower die immediately or does it bog down and then die?
Thank you for the updated information. Now I more fully understand the situation. It appears that there is a safety switch that is malfunctioning in the system. There are normally 3 of them. One for the seat, one for the clutch pedal and one for the lever than engages the blades.
The first test I like to do is eliminate the seat switch by starting the mower and raising up off the seat and seeing if the engine dies. On most mowers, it will die with the engine running and the blades not turned on. Then shutting it off and unplugging it and then testing the mower again.
I have a suspicion that your clutch switch is probably the culprit here. You can remove it and do an continuity test. With the switch button extended, check for continuity across two of the contacts. Then push the button in and check for the same on the other two contacts.
A bad safety switch will cause the problem you are experiencing and will immediately kill the engine by grounding it out.
If this concludes our troubleshooting, please rate my response. If you have any further questions, don't hesitate to ask. My goal is to do my best to help you remedy your small engine problem and continue to keep my high rating as a Technician.