Small Engine Troubleshooting Problems? Ask a Mechanic Now.
HI, my name is***** will be assisting you.
On this system you can't disconnect the small wire going to the ignition coil because it is actually a feed to trigger the ignition coil to fire. There is a small trigger unit mounted to the outside of the engine block that has a wire going to it and then from it to the ignition coil. Most likely the trigger unit is bad causing your problem. The trigger unit or module is about 1" square and normally gold in color. If you haven't already replaced it then this is where I would start since you have already replaced other parts with no needed results.
Thank you it has been a pleasure to assist you.
Please take a moment to rate your experience.
I am including a diagram of the ignition system to maybe help you better identify the trigger module.
It is the part that is referenced with 21119A in the picture.
Have you checked the condition of the magnet that is on the flywheel? Will it hold a medium sized screwdriver straight up or not?
Ignition coil is gapped at .010 inches to the flywheel?
In my experiences .010 normally works better. That is where I become accustomed to setting all coils in my 28 years of small engine repair. It just seemed like I had better dependability and life from the coil.
OK - that should have eliminated everything backwards in the rest of the system then.
I would readjust the ignition coil gap and see if that doesn't help. If not it is possible that you may have received a weak or bad coil, at which point I would request a replacement from the place that you purchase it from.
Yes, all you need to do is come back here and we can continue from here.
You are welcome. I will be waiting to hear back from you in a couple days.