While most spark plugs for passenger vehicles should have somewhere in the 4,000-8,000 ohms neighborhood, your exact plug may call for different values. Q: How Can You Check for Bad Spark Plug Wires?

2 The best way to check resistance of carbon core or spiral-wrapped plug wires is with an ohm-meter. Typically, if you have more than 10,000 ohms of resistance for an individual plug wire, it ...

Every small gasoline engine has a spark plug, and this key component requires periodic inspection and testing. Learn how to do it here.