Cam chain guide

[ChristopherR]

Hello all, new to the site and generally new to bikes. I recently picked up a 79 cb750f in pretty good shape. After running about a month, I find it has a broken cam chain guide, guide B I believe is the technical term for it..the overhead guide. No luck finding a repro online and no luck finding a parts bike in my area yet. My question is has this been a common problem with your bikes and is there a supplier for these guides I'm not finding? I'm guessing the chain had some serious slack to break it completely off. Any input would be greatly appreciated!

 

[Rod]

I hope these links will help you find the right parts.
https://www.vintagecb750.com/products/4/engine/59/camshaft-drive-parts
https://www.hondapartshouse.com/oemparts/a/hon/506f7abaf8700229747b8465/cam-chain-tensioner

 

[dirtdigger]

Most of the guides are no longer available from Honda anymore for the dohc stuff. Yes it is a very common problem and you are more than likely going to have to find a good used guide. dohc do not have much aftermarket support so you will have to find used or hopefully stumble across someone with some new old stock laying around.

 

[ChristopherR]

Thanks a lot guys. There's one on ebay now but it has a high price tag and I can't see paying for that when I can hopefully find a parts bike for not much more. I'm considering welding and reinforcing the original or maybe even fabbing something up. Thanks again!