How to Troubleshoot Your Mower Not Starting



Your mower should start within three pulls of the starter rope (unless equipped with a Quick Start engine). Follow step-by-step instruction to determine why your mower won't start: checking fuel levels, spark plug, carburetor and compression. Follow along this DIY video to troubleshoot and learn when it's best to service your mower.

First step, check the fuel tank to make sure there is enough fuel to operate your snow blower. You should see fuel slosh around. Second step, check the spark plug. A wet plug means there’s fuel going through the fuel system and there may be an issue with the ignition. A dry plug means there may be an issue with the fuel system. A common issue is a clogged carburetor from stale gas. Using a fuel stabilizer keeps fuel fresh and the carburetor from gumming and varnishing. Third step, check the ignition system with a spark tester. Step four, replace the spark plug and reconnect the spark plug wire. If your snow blower still doesn’t start you should consider taking it in for service. Briggs & Stratton has over 12,000 servicing dealers in our network. Visit our website to locate the nearest dealer to you.

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