I have a 1972 cb750. Before I resore this bike, I have 1 issue I need to clear up. Right now the bike starts but doesn't run that great. The problem I am having is with what I think is 1st gear. I have to get a running start (with engine idling) to ride it because I think it isn't in 1st gear (feels like second). When I push the shifter down all the way it seems like it is "clicking" into first but seems like Im in second. And because the bike is running a little rough, I can't get the RPM's up enough to take off (because I believe it is in second). But don't forget, it is clicking and feels like it is in first. Could it be a clutch issue? Once on the road, I shifts fine through the gears. Once I stop and try to take off again, Same thing. The bike has only 8,000 miles on it. Oil is full... All the obvious is ok.... Any suggestions? Thanks so much for your help !!!