This may seem kind of dumb, but I'm new to all of this. I am in the process of restoring an 86 rebel 250. I bought the bike non functioning as a first project kind of thing. I am almost done partially rebuilding the motor, and will need to put the exhaust on afterwards. Can someone explain to me how the exhaust bolts to the engine? I have all the parts, the diagrams online are just a little bit confusing.