kibsy Posted February 20, 2009 Report Share Posted February 20, 2009 hi, my front brake pistons are stuck on my gasgas 125, how do i get them free? kibsy Quote Link to comment Share on other sites More sharing options...
zippy Posted February 20, 2009 Report Share Posted February 20, 2009 Remove and disassemble the caliper. Using compressed air blow air where the fluid passes into the caliper. It is a good idea to have a rag wrapped around the caliper to catch the piston. Replace seals, clean and inspect (possibly replace) piston. Repeat for other half of caliper. Hope this helps. Quote Link to comment Share on other sites More sharing options...
passenger Posted February 20, 2009 Report Share Posted February 20, 2009 If you don't have access to compressed air, remove the caliper and pads, leave the brake hose connected. Pump the piston out, clean up, replace seals, rebuild. Quote Link to comment Share on other sites More sharing options...
lepky1972 Posted February 20, 2009 Report Share Posted February 20, 2009 i used pipe grips on mine pumped the preasure up on the lever to see if thay moved slightly if not split the calliper make sure you dont lose the seal little o ring from the centre of the calliper got the pipe grips on twisted the pistons till thay popped removed the pistons carfully not too damage or score the pistons got 1200 wet and dry sand paper cleand the grime off them replaced them carfull not to damage the seals refiting the pistons you can buy a brake calliper piston fitting kit from machine mart hope this helps Quote Link to comment Share on other sites More sharing options...
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