question... is the throttle cable longer on a 1977 cb 400 than it is on a 1975cb 400? I an making a custom bike with the 1975 cb motor and need a bit lomger throttle cable what can I use that is the same but longer?? How about a 550 or a 750 of the same years would that be longer and common? I know one of those years they changed the handle bars to be higher and a bit swept back was that 1977?? please help....Tim