Why don't you try some pads of a different material? I thoroughly recommend Goldfrenn for getting deposits (left by stock, EBC or Braking) of discs - worked a treat with my EBR disc...
http://www.ebay.co.uk/itm/Buell-1125-CR ... 4cfcd2aefesportster_mann wrote:
EBR do sell a rebuild kit, and I was just wondering if this would be a pain to do and not worth the effort, easier to buy another caliper -
http://www.erikbuellracing.com/store/pa ... n-set.htmlSticking pistons are more likely to be the case if they are dirty. You can split the caliper, pull the pistons out. I use one of these:
http://www.ebay.co.uk/itm/LASER-3673-Mo ... 1e66ef4bd0far better than pliers:
http://www.ebay.co.uk/itm/Sealey-VS1806 ... 1e6dc965a8You may find it has not got a small enough puller for the smaller pistons, however, if it is anything like the earlier Nissin's, there is a recess which allows you to pull the pistons out with a hook or screwdriver (you much protect the casting with a bit of rubber or wood).
You can then (carefully) pull the seals, clean them with a rag and brake fluid, then clean the recess with the same. If there is crud that wont shift, use a Dremel with one of these:
http://www.ebay.co.uk/itm/10-Brass-Wire ... 2a1f019dfaClean the pistons up with brake cleaner and Solvol Autosol if needed.
Then, coat the seals with some rubber grease:
http://www.ebay.co.uk/itm/Castrol-Red-R ... 20c6a0f925And push the pistons back in. Then bolt the caliper back together...
It is not often you need new seals nor pistons, unless they are rusted to buggery and you have pushed the pistons back in and ripped the seals to smithereens...