The CM91 died and will not start at all. On close inspection it sounded like there was a compression leak through the intake valve. I

The old throttle cable was just a bit too short, and on the CM91 the only adjustment is at the carb top. It only provides

I’ve read that contrary to most modern bikes, on these small Hondas the rear brake provides most of the stopping power. My bike’s rear brake

Old dried out rubber has resulted in quite a bit of oil leaking from the engine. I replaced the valve cap seals, camshaft oil seal