Smokerbill
Crossing the Road
You could have very well sheared or distorted the flywheel key. That can throw the ignition timing off.Bad news:
My self propelled push mower died today. I went over a small stump that v was flush cut before but the much around it settled I guess. Three blade hit the stump and the motor died. It took several pulls to get it to start again, and although it started it is shaking like crazy and died out after a less than a minute.
Good news:
I decided to upgrade finally to a Husqvarna 42" riding mower and the mulching kit. I well day that it takes some getting used to, but it cuts the grass fast and easily.
https://www.lawnmowerforum.com/threads/bent-broken-flywheel-key.1933/
https://www.briggsandstratton.com/na/en_us/support/faqs/browse/inspecting-flywheel-key.html