GSX-R brake calliper trouble?

Went to get the speedo sorted this weekend as the last part (or so I thought) of the puzzle to finishing the front end swap. I've had the bike out prior for a little test around a car park and it felt fine and everything was working as it should be.

Magnets were installed in discs already at this stage, so it was a case of fettling a bracket to accomadate the sensor underneath the mud guard and all should be good. So I jacked the bike up on paddock stands and set about the job. Thats when I noticed the the front wheel didn't turn freely and took a little bit of force to turn, great! I'm assuming that one or both of the discs are catching on the pads stopping it from turning freely but not sure what to do about it.

I finished installing the sensor anyway, and as the bike before starting the job seemed ok I decided to have another little ride to test the speedo was working ok, which thankfully it seems to be.

I'm going to unbolt the callipers later when I get chance and test again to make sure it's them (what else could it be really!) but assuming it is them, what can I do about getting it sorted?

[yorkie_chris]

Strip and rebuild, will probably be a load of crap behind seals. Provided you've not put wayyy too much fluid in or owt

Wish I could! Saying that though I have got new pads to go in the front (even though current ones aren't too bad) so will double check the fluid level is ok, kinda hoping it is now lol! But if stripping and rebuilding is something that I could do I might have a go as it's good to know how to do it. Failing that might see how much the garage charges!!

[maviczap]

Yes, mine needed a strip down, just one piston was sticky, but still caused the pads to rub on the disc

Sounds like I'm best getting them done then. I'd love to have a go myself rather than pay £70-£80 at the garage if I can. Is it particularly difficult?

[Nobbylad]

Dead easy - you will need red rubber grease, patience, a couple of hours and a pump with some tubing or a compressor to get the pistons out. If you have a dremmel with a wire brush attachment to clean the crap out of the grooves in the calipers that would be a time saver, if not, tooth picks or something that can pick the crap out without damaging the surface.

[yorkie_chris]

Pump them out using the master cylinder

Just watched this video, http://m.youtube.com/#/watch?v=QY8WW...%3DQY8WWA6E9H0, is this pretty much the way to do things?(mine are 4 pots though). Think I'll pump the pistons out with the m/c as it sounds easier but would I have to be careful that each piston goes back where it came from or does it not really matter (assuming they're all the same).

Where's best to buy the seals from?

[maviczap]

Wemoto or Robinsons, or your local dealer