what did you do with your fazer today ?

[Dudeofrude]

There were some bits of crud on the outer edges of the pistons which, despite lots of brake cleaner and scraping with a plastic biro cap, wouldn't shift, but that's outside the bores anyway, so fortunately wouldn't affect anything.

You can get this off with a piece of wet and dry. All 8 of mine had a pretty thick line around the rim but managed to get them all back to almost new.
I used a bit of 1500 wet & dry then polished them up after with some metal polish and a soft cloth to make sure they were nice a smooth
Tedious work but worth it ?