Interesting. By photos I thought the F headlight shell was higher with the horns mounted beneath. Camera angles change everything.
John would you also mind measuring c-c forktube to headlight mounting bolt please? Thanks for responding, I appreciate the help.
By the way I'm well pleased with the "VintageCB750" K3 fork tubes, but the ID of the captured washer in the tube bottom is larger than OEM. It makes for a sloppy fit over the damper rods. That will speed up fork rebound, but can be compensated by welding both rebound holes shut, plus slightly heavier fork oil. I'll be using emulators so I'll tune the suspension when I get it back together.