You need to mow the grass, but the lawn mower won’t start. Here’s a step-by-step guide for finding the problem.
Troubleshooting Lawn Mower Start Issues
Before we figure out why your lawn mower won’t start, is the engine a recoil start smaller horsepower engine, or is it an electric start higher horsepower engine?
There are a couple of things that are common for either engine type. Does the engine turn over smooth or does it have “tight” places in the rotation? Let’s say that everything moves correctly. Recoil start engines on smaller equipment have a very simple “kill” circuit which could prevent the engine’s ignition from firing. Electric start, larger horsepower engines usually have a “safety interlock” circuit in addition to the primary kill circuit. Either of these circuits can prevent the ignition from firing.