39+ Mower Starts Then Dies. Start by removing the spark plug from your mower and then drain the oil from the mower by removing the cap and tipping it on its side. But if your lawn mower starts then dies, the causes could also be the same.
Check the fuel cap of the mower and see if there are any obstructions in the vent. Then tilt the mower up and use a wrench to loosen the bolt that holds the blade on by turning it counter clockwise. Or it starts once, then refuses to start again.
The most common symptom of an ailing lawn mower is that it won't start at all or roars to life, runs for a few seconds, and then stops dead.
Starting a lawnmower can be intimidating, especially if you've never done it before. You may have to do. June 24, 2015 04:00 pm. Lawn mower starts then dies.