I was able to obtain NOS SL90 swing arm bushings, which is a good thing because the original bushings (plastic) in the swing arms on both bikes could not be salvaged. I used the NOS plastic bushings as the templates for machining bronze (oil impregnated) replacement bushings. The bronze bushings are a little shorter than the plastic, but the bronze set are a big improvement over the stock version. The photo shows the bronze bushings next to one of the black plastic bushings.
A really quick way to remove the plastic bushings is to put the swing arm in the powder coating oven - they melt into a little puddle...
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