I picked up my White 764 about a month ago, and finally made my way to working on it. It took some heat and oil, no surprise, to get things moving, and the reverse mechanism really gave me some fits, but it finally loosened up and worked freely.
I will admit to a little disappointment initially as I, naively perhaps, expected it to be as smooth and quiet as my straight stitch no frills Model 65, but I'm happy with it.
About 2 weeks after I picked this up in Minneapolis, one showed up locally for the same price...next time I see a machine I want I think I'll wait.
Bonnie thanks for the video and Janey thanks for the manual, both very helpful to getting this up and running.