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Anyone have suggestions for a shop that can do head repair? I've got a 2v head that stuck an exhaust valve with less than 15 minutes of runtime on the clock. Based on the scoring on the valve stems the working theory is the guides were too tight.
I've got new internals, including valves/rockers and a cam, but I don't have the tools or expertise to ream out and clearance the guides, cut new valve seats or grind the valve stems to length.
Oh, and to make things more fun this is a pitbike head so we're talking tiny valve stems (4.5mm or 5mm).