Motorcycle Repair: looking for valve guides, valve stem seals, cb175

Question
Hey Bill, you have already helped me with a few things but I need some more help. I need to find out where I can get valve guides for a cb175 (both intake and exhaust). I called the dealer and got the old "it's discontinued" response. In a way I am kinda screwed now because with plans of replacing them I dinged them taking them out of the head. Does this mean I have to get a whole head and start over or is there anyone that still sells the guides.

Answer
12021-216-405 GUIDE, IN. VALVE
12023-235-690 GUIDE, EX. VALVE  These are the current part numbers, I believe.

They are in stock at www.cmsnl.com (parts fiche online) and I see them listed on www.ohiocycle.com   Also call the people at Westernhillshonda.net to see what they may have available.

Really, any good machinist could make some for you out of bronze, but it is probably cheaper to supply your own for installation.

The intake guide is from a CB160. The exhaust guides are 175 specific, because of the valve stem seals, which weren't used on earlier bikes.

Bill Silver