The Drain Posted June 20, 2011 Share Posted June 20, 2011 Hi All,Just got my GPZ500S (1996 N) back together. A few months ago it was knocked off the stand by some nameless person, it has stood in my garden ever since as I have not had the time, money or will to repair it. Until now. I have replaced the fairing bracket assembly, the front fairing (Skidmarx replacement) and both indicators. All screwed together this morning with a small degree of swearing and some minor unbending of bracketry. I have started it up and after a few goes it settled down nicely, all electrics worked ok and battery freshly charged.However, as I moved it around the garden so I could work on it easier I noticed that the front wheel is quite stiff to turn, and considerably more so than the rear one. The disk has a surface coat of rust where it has stood for some time, though the lever movement feels fine.My thinking is this...take caliper off and give the brake disc a good once over with wire wool or emery paper to remove the rust. Then remove the pads and gently push the brake pistons back into the caliper (only by a millimetre or so) then put the whole thing back together and work the lever until the brake feels as if it works ok.Good idea or not?And will I need to bleed the brakes?Thanks in advance, Andy Quote Link to comment Share on other sites More sharing options...
megawatt Posted June 20, 2011 Share Posted June 20, 2011 Take calipers off and see how wheel feels and turns. Then, if OK , give calipers a good clean with brake cleaner, remove pads , pump pistons out about 3mm and give them a good clean with a toothbrush. When all pistons clean all around, push em back in, refit pads and refit calipers. Where in SE London are ya??? Quote Link to comment Share on other sites More sharing options...
The Drain Posted June 20, 2011 Author Share Posted June 20, 2011 Thanks for the advice, will I be able to do that without bleeding (or even opening the brake fluid reservoir at all)?I am in Woolwich, not far from the Old Royal Military Academy. Quote Link to comment Share on other sites More sharing options...
Colin the Bear Posted June 20, 2011 Share Posted June 20, 2011 I'd be tempted to give it a run. The pads will clean up the discs. If you still have problems then you can give it a service. Steady away tho Quote Link to comment Share on other sites More sharing options...
Bogof Posted June 20, 2011 Share Posted June 20, 2011 I'd be tempted to give it a run. The pads will clean up the discs. If you still have problems then you can give it a service. Steady away tho I agree. Why strip it all out if the only problem is that it's stood still for a few weeks?Go for teh easy fix first, take it out and use the brake, the disc will soon shine again Quote Link to comment Share on other sites More sharing options...
RiffmasterII Posted June 20, 2011 Share Posted June 20, 2011 Failing that, twat it with a big hammer, usually does the trick for most things. Quote Link to comment Share on other sites More sharing options...
Colin the Bear Posted June 20, 2011 Share Posted June 20, 2011 5lb leather faced and copper faced mallet. Universal adjuster Quote Link to comment Share on other sites More sharing options...
megawatt Posted June 20, 2011 Share Posted June 20, 2011 As long as you don t pump em out or push em in too far, you should be ok. Remove the loose rust with wire wool. Quote Link to comment Share on other sites More sharing options...
The Drain Posted June 26, 2011 Author Share Posted June 26, 2011 Thanks for all the advice folks, I took the rust off with emery paper and it was fine after a few spins of the wheel.Thanks again Quote Link to comment Share on other sites More sharing options...
Tango Posted June 26, 2011 Share Posted June 26, 2011 Result!! Quote Link to comment Share on other sites More sharing options...
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