[NSRCA-discussion] YS 140 Sport stuck exhaust header

[Duane Beck]

I have a YS FZ140 (Sport) that has an exhaust header attached with what appears to be a 10mm socket cap screw, or similarly broached fastener. The socket has been damaged a bit by previous installation and removal, to the point where I can't get an allen wrench to hold tightly. When I try to turn it, the wrench slips. Any suggestions for how to remove the header? 

Duane 
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