If this job is for a production motorcycle and the bushing is in fact a serviceable item there s probably a factory tool or procedure for getting the bushings out. If it is a Japanese made machine I would look in the online bike ads for a replacement, a procedure, or a factory tool.
Since you say the bushes are PTFE coated I would guess the machine is from the 1970's or later. In that case replacements are likely available unless it's a rare make like a Hodaka or something.
Years ago I recall a friend had a three jawed fork bush tool with a conical wedge that expanded the jaws outward, then a slide hammer type extension was operated to yank out the fork bushings. I believe it was a factory tool for Suzuki dirt bikes with replaceable bushes. A few people shared the tool around but since factory replacement fork legs complete with new bushings and new seals for these bikes were about 12 dollars each at the time and a set of replacement bushings was 8 dollars, it didn't make much sense adding more labour cost fighting with the bushings- just replace the fork legs. They often had cracks or broken lugs or leaky seals anyway. JD