I have a 1980 cb650c that I bought brand new and from the factory it had tappet valve noise and has been rebuilt three times and always has been a lemon. When it did run it would flat get with it. Anyway I gave it to my son and he wants to bob or chop out. I woild like to put in another motor if you have a good used on and how mulch would it be. Thanka
I generally don’t keep too many motors on hand. Most of the time when I pull them down I am parting them out or scavenging parts for another I am working on.
However – I will keep my eyes open for you. Your best bet is eBay and the SOHC4 forums.