nateweisiger02
CB750 Enthusiast
Hey there, I have a 1978 CB750k. I had the stock exhaust on mine but had a rust hole in it, so I chopped it right below the foot peg…. Bad idea and wish I never had. Haven’t ridden it much at all, barely had any torque after that, now the bike will barely pull its own weight. Thinking I burnt the rings so I am about to break the engine open. First question, would a 4-1 exhaust give me enough back pressure to keep this from happening again? I’m not feeling spending over $1000 for a used stock exhaust that came on it. Second question, is there any type of compatibility in the years and models as far as exhaust? Does F or K matter as far as exhaust and which years can use the same? Thank you very much!