Hi Hap,I can't give you info specifically for a '78 CB750F........ but I can give you the info for a '74 CB750 K4. This information covered the '69 through '78 K model series. I would think you'd be OK.
The center hub nut is to be torqued
33 to
36 foot pounds.
The 4 plate bolts are to be tightened progressively, one turn at a time, in a counterclockwise pattern....... until you reach
6 to
7 foot pounds.
You shouldn't have any problems with this procedure......
~ ~ ~ jaknight ~ ~ ~