This is where I spent my last two nights. A friend of mine Rick has a very nice bone stock (believe me I tried to talk him into chopping something) 1981 CB650. His head gasket sprung a leak so he bought a gasket kit and we replaced them all while we were in there. Put it back together tonight and he took it for a spin around the block, no leaks that we can see so far so keep your fingers crossed. Here's a pic of it with the engine out and one of it put back together.