I’m just getting started cleaning up my dad’s 53 dx. I’ve never done extensive cleaning on a bike before. I’ve got the wheels off but I’m wondering if I am supposed to break the chain to take it off to clean it or am I missing the magician’s truck to remove it? I don’t have a chain tool but if I’m supposed to do that, I will get one for it. I just didn’t want to break something that I’ll regret later.