Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hello. Thank you for choosing Just Answer. My name is***** will be happy to assist you. You have basically covered all of your bases. You set your gap at .010", and replaced your ignition coil. Keep in mind that only three things wire prevent your ignition coil from producing a spark to your spark plug.
If you remove the small black wire from your ignition coil, and you still do not get a spark to your spark plug, either your ignition coil is at fault, or your flywheel magnets are too weak.
Did you notice any rust on your flywheel magnets?
If so, use some sandpaper, or a wire brush to clean the rust off. Also sand the two mounting surfaces, that your ignition coil mounts to. This will ensure a good ground for your ignition coil.
If you still do not get a spark, with the small wire removed, it is possible that your new ignition coil is faulty, although it is new.
A medium grit will do. Just sand it until the rust is removed.
After you finish cleaning the rust, check again for a spark. What method are you using to check for spark?
Can you take a picture of your tester, and attach it to our discussion.
Just wipe your surfaces off with a rag. You will not need to add any lubricant.
You can use the WD-40 to cut remove the rust, but I would wipe it all off, afterwards.
No problem. I understand. The reason I wanted to see your tester, is because most testers attaches to your spark plug wire, and to your spark plug.
After the rain stops, we will figure it out.
Take your time. I will be here until 11:00 pm central time.
Thanks for the pictures. Take a look at your image below.
Good morning Sheila. You can try sanding everything again if you like. Just clean all sanded areas afterwards. If you leave the small black wire disconnected from your ignition coil, this will eliminate your safety switches, and your (key) switch, from preventing your ignition coil from producing a spark to your spark plug.
Have you recently replaced your (key) switch? If so, I can check for the correct part numbers for you. Keep in mind, that with your small black disconnected from your ignition coil, your (key) switch is ruled out, as a possible cause for our problem.
If you have another mower, or trimmer, use your tester to check for spark on that engine, just to confirm that your spark tester is actually working. If your tester is actually working, and you still are not seeing a spark on the engine you are working on, then you may have a faulty coil, although it is new.
We can continue from here. I will be here all day. If I do not respond to you immediately, it will be because I have stepped away from my computer. I will reply, as soon as I return. Thanks!
Very good! Keep me posted on your findings. Thanks!