Had my rebuilt 1978 CB750K going for a while now, technically been plated for a year, but I've only ridden maybe 20 or 30 km.
I'm rebuilding a little honda cub right now, and looking at the piston ring info, it made me remember building the CB. The rings I had, I was pretty sure there was no 'stamp' people talk about, and I was pretty damn sure by looking at them that there was no 'up' or 'down' side (no taper). Rings and pistons were from Cyclex IIRC
But...it's always been a bit cold-blooded, taking several minutes to take throttle without choke, and sometimes being a bit picky about starting -- gotta goose the throttle a bit to prime the cylinders, and then carefully give it a wee bit of throttle for a few seconds before it'll idle on full choke (though that was when it was much cooler out). Could this be related to piston ring orientation? I've heard they're just always a bit cold blooded, but part of me is always skeptical of that advice -- I imagine a layman 40 years ago starting their bike, and I wonder if they knew to take this much care, or if it frustrated them.
