There it doesn’t sound as loud. Trying to diagnose noises via video is almost pointless in most cases. Nothing wrong with the living room. Just drain as much oil out as you can and leave the tank and carbs somewhere else, so you don’t stink the place out. I would just take the engine up there.... if the neighbors see you dragging in a whole bike, then there will likely be some drama.So, I'm just thinking out loud here...
I looked back through the videos I've taken during the process of fixing up this bike. I have video of it right when I got it, which is ugly because the carbs were dirty.
I cleaned the carbs and took this videoand I feel like I can hear the same ugly slapping, pinging noise that it is making still. Somehow (probably because I'm a novice) I missed it throughout this whole process. I think later I ascribed it to the balancer chain being loose but that didn't play out.
You're probably right, taking the engine out makes the most sense. I could buy a donor engine, but who knows what issues a motor in a box might be hiding. I already know the top end of this one is sound. I would have to take it out to stick a new one in it anyways.
Main problem now is that I don't have a shop. The bomb shelter situation shifted after the bike came out. Guess the neighbors upstairs don't like the smell of burnt fuel.... Looks like it's the living room for this next chapter.