I bought a 77 cb750. Everything was perfect about it. Rode it and hour and a half home. The next day I changed the grips on it. After I did that I started it up and went to go for a nice Sunday cruise and it didn’t make it down the street. Me, not being a mechanic at all, thought it was a carb issue so I messed with the pilot screw at the bottom of the carbs and made no difference. So I started thinking it was the new throttle grip that I put on it (old one has the sleeve the new one doesn’t) with the old throttle grip on it still didn’t make a difference. I am honestly out of ideas on what I could do to ride my bike I’ve been wanting for a long time. Can anybody help??