Aye, those forks are certainly not Honda's finest design.
Some of you that have worked in Honda franchised dealers in the 70's will remember the forks on PF50's and stuff, they used to seize up solid with salt and crap in the winter months.
The bodge was to drill tiny holes in them and squirt in WD40 to free them off, from the photos of the old forks you can see that's already been done on one side.
Happy days...