Stripped spark plug hole

[jimsimm]

My 2004 YerfDog has a stripped spark plug hole so I rethreaded it and installed a 10mm coil in the hole. Now I can't screw in a spark plug without stripping it. The coil screws right onto the sparkplug when it's NOT in the hole, but in the hole, it strips the spark plug as soon as I start to screw it in. Any ideas what I did wrong or how to fix it?

[BlackScorpion]

I have a 2004 Yerf Dog with a stripped spark plug hole. Does anyone know the size tap and coil I need to do this? I think it's either 8mm or 10mm. I've never done this before so if anyone has any tips, that would be appreciated. It's an NGK CR7HSA spark plug, if that helps.

Jimsimm Welcome to , according to NGK's Website It a 10 mm. I have never tapped a spark plug hole in a gokart so sorry i can't help you there. You can read some advise given to another buggy owner in this Site