06-25-2021, 03:36 PM
Hi there, the CB makes a lot of strange noise when it’s off and cooling down (in the garage post ride out). Often hours later I could be in the garage completely quiet when the bike would just start making funny noises for a few seconds or more then fall silent again. Almost like a haunting gurgling noise that is very difficult to describe. I wouldn’t say it was humming but I think this might be what you mean and is nothing to worry about. It’s the modern gummings evap system doing its thing. That’s all.