How To RELIABLY Test Spark Plugs In Seconds!

A highly reliable, and very affordable way for a DIY auto repair, boat, or small engine mechanic to test spark plugs in seconds. How to test spark plugs. Auto repair diagnostic testing equipment, save money on repairs. Enjoy the video!

VXSCAN Tester(Worldwide): https://s.click.aliexpress.com/e/_AgMFeZ (I get no commission from this tester at Aliexpress, only from other items you may buy) VXSCAN (Amazon): https://amzn.to/3gPMqgh (Shows smaller hole tester, but I was shipped the larger hole) New Version Wireless Tach/Spark Tester: https://amzn.to/2Se3sfJ (Aliexpress & Amazon Affiliate Links)

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