jamez Posted December 30, 2009 Report Share Posted December 30, 2009 Hey, Im posting after a day bleeding the front and rear brakes of my jt 1994 gasgas. After alot of trial and error I managed to bleed them, my problem is that the brakes work good only when wet. I mean if I go now and try out the brakes they wont hold well and i throw some water on them and work 100% ok (with only onw finger on the front brake its easy to pull uu a stoppie) but after some time when the dry the brakes wont hold anymore. Tried cleaning the disks with contact cleaner but no improvement. any idea what may be the problem? Thanks James Quote Link to comment Share on other sites More sharing options...
pete_scorpa3 Posted December 30, 2009 Report Share Posted December 30, 2009 Sounds a bit odd! Are the pads ok? Did you get brake fluid on them maybe? Quote Link to comment Share on other sites More sharing options...
jamez Posted December 31, 2009 Author Report Share Posted December 31, 2009 The pads still have about 5 - 7 mm, maybe some brake fluid got on them but I washed the disk with water and contact cleaner well. My brother told me that it used to do the same when he used to compete with it, maybe the brake pads are burnt or bad quality or something? Personaly I never changed the pads, front disk is new. today ill try touching them with a sandpaper and see what happens as I cant find any in my country, will have to wait so I can order from uk because of christmas gifts... Thanks james Quote Link to comment Share on other sites More sharing options...
gasgasmi Posted December 31, 2009 Report Share Posted December 31, 2009 I had this problem with a '95 250. Tried everything and finally put new pads on and the problem was gone. No idea what happened to the old ones, they looked fine and I tried cleaning, sanding, you name it. I do know the new ones I put on had less metal in the friction material. Get some new pads. Craig Quote Link to comment Share on other sites More sharing options...
pete_scorpa3 Posted December 31, 2009 Report Share Posted December 31, 2009 I guess that the pads are contaminated with brake fluid, as soon as they heat up the fluid comes to the serface and reduces the braking efficiency. If this is the case, no amount of sanding will cure the problem. Only a guess though. Quote Link to comment Share on other sites More sharing options...
jamez Posted December 31, 2009 Author Report Share Posted December 31, 2009 Today I tried the brakes and worked ok maybe they dried out now. tomorrow I will be going to a local spot to test them out well with my friend, If they wont hold 100% well I will have to wait for some new pads. Thanks For all your help guys! James Quote Link to comment Share on other sites More sharing options...
pete_scorpa3 Posted January 1, 2010 Report Share Posted January 1, 2010 Let us know how you cure the issue. It certainly is an unusual one. Best of luck. Pete Quote Link to comment Share on other sites More sharing options...
jamez Posted January 1, 2010 Author Report Share Posted January 1, 2010 Hey, just got back and you know what? the brakes worked 100% ok... Still dont know what the problem was but now its solved Thanks all James Quote Link to comment Share on other sites More sharing options...
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