Toro TimeMaster 30 in. Briggs & Stratton Electric Start Walk-Behind Gas Self-Propelled Mower with Spin-Stop 21200 - The Home Depot
What is a Lawn Mower Engine Popping Sound?
Symptoms of a Bad Solenoid on Riding Lawn Mower!
Lawnmower backfires when trying to start, the causes and fixes. – Garden Tool Expert
On a ride on lawn mower, is popping while running, spark plugs were changed and old ones look like this. Carb was clean, fresh gas put in, full service and valves adjusted
Why Does My Lawn Mower Backfire and Can I Fix It At Home? – NeoHandyman.com