How do I know if my snowblower spark plug is bad?

If you’re not sure whether your snowblower spark plug is bad, there are a few things you can do to test it. One way is to remove the spark plug and check its condition. If the electrode is blackened, the plug needs to be replaced. Another way to test a snowblower’s spark plug is by using a Spark Plug Tester; this tool will help you measure how well your current spark plug is performing. If it doesn’t meet factory specifications, the plug should be replaced.


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