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Title: Compression Tester adapter Post by: Tedonlin150 on February 14, 2010, 08:58:56 AM I have a compression tester that I want to use on my bike but the spark plug holes are teeny. Does anyone know what size the spark plug holes are so I know what adapter to get?
Title: Re: Compression Tester adapter Post by: hooligan machinist on February 14, 2010, 04:45:26 PM Should be m12x1.25.
I'm not 100% on that though. |