Factory Pipe Manifold stripped one of the bolt holes SXR

[Moto44]

Was putting my factory pipe wet pipe back on my ski and I was torquing the head pipe to the manifold and one of the bolt hold stipped. Should I use heli cole or a time sert? Anybody know the size I need to get? Any help would be appreciated. Thanks

 

[Kaylee.S]

Helicoil. They are stronger than the original aluminum thread. Not sure on the kawi, but the yamaha ones are M10x1.25