Thanks for the pic of your pedal and proper routing of the strap.

I have since redone my toe clip straps on the old Wellgo pedals, and you all are correct. Now they loosen and tighten like they should. My bad...

I like the MKS Sylvan pedals, as I assume that's what's supposed to be original, stock, OEM, from Fuji back in 1985.
http://www.classicfuji.com/DelRey_1985_Page.htm