Threaded Stud Spark Plug Tester Mod

[@tombilliodeaux7282]

Perfect solution. I was having this problem with outboard motor plugs.

[@rockytoptech1308]

Nice man.The heat shrink idea is very smart! Good job!

[@lololine]

This is an awesome video!

[@kevinsmotors]

I have no idea why they don't just sell them like that.you think they would think of everything thing but apparently not. Infact it's only the last 10 years Iv even seen those cheap bulb testers. They used to be expensive. Blower my mind

[@thinkjeremiah]

Dang, get to the point