XS 650 Cam Chain Guide

Well after riding this summer a couple of trips and the recent trip down to Brooklyn, I think my cam chain guide is crumbling... Drained the oil and found some plastic and some aluminum in the filters... starting to disassemble enough to pull the motor and the heads.  Bike has been running like a top, so I dont think im going to get into the engine much.  Doesnt burn or use any oil... Should just be able to change cam chain guide and put some new gaskets in it...  Just want to do it fast so I can get some good rides in before the end of the season...