stripped exhaust manifold bolt...help?

I just rebuilt the topend on cr and put it all back together... but one of the three bolts that holds on the exhaust manifold that hooks it to cylinder is stripped. The other 2 bolts are good. Really don't want to tear it all back down and bring it somewhere to be re-taped. Could I heli-coil it or just throw a little hi-temp gasket sealer around it. Just looking for a little advice maybe i won't have to tear it back down.

find a buddy with a 1/4-20 tap, the exaust manifold bolt on that bike is the right size that you dont need to drill it or anything, just run a 1/4-20 tap in it and find a stainless 1/4-20 bolt at most any hardware store.

I ended up taking the cylinder off yesterday and bringing it to the local machine shop which they taped it out then put a heli-coil in. Got the 125 back together and she's good to go for the wkend. brapppp

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