An ignition coil is an electromagnetic induction-type transformer that turns low electrical voltage from the battery into high voltage provided to the spark plug, which then sparks and ignites the ...

Learn more on how to test a car battery with a Multimeter. Our team of experts prepared the guide on everything you need to know about testing a car battery.

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

Testing your car's battery is an important part of routine maintenance. You can check the battery yourself using a voltmeter or multimeter, or have it tested professionally.

The plugs are about $25 each and, since there’s an air hose and a few plastic covers in the way of the rearmost plugs, they’ll charge you an hour’s labor for the job.

There are many ways to test your bike's battery, and they don't involve going to the auto repair shop around the corner. Instead, with the right set of tools, you can run a comprehensive test on your ...