Hello everyone, I am quite new to the world of cb750s. I have only worked on classic harleys.. sooo, my problem is on the transmission (while not riding) it seems it wants to only shift into 1st and then up to 2nd gear, and then after that it won't move up or "click". Is there a lock or something on these transmissions, that prevent it from shifting unless riding? Or will the transmission need to be tended to? It is a 1975 CB750k5.. Like I said I have no previous exp working with these type of bikes, soo all information down to last detail would be amazing lol..
Thanks all.
Kevin