davevv
Retro Apprentice
Posts: 5
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Post by davevv on Sept 7, 2011 13:06:56 GMT
Hello All Is anyone in the Milton Keynes area that is happy to help me with my GPZ600R front brakes it is a 1985 and still has the AVDS on the forks I have bled the brakes so many times and I still have spongy brake, I have put some mole grips on the 1st pipe to the master cylinder and it is solid so it is not this, If i do the same to the left calliper pipe It is ok but If I block of the right one it is spongy ... Can someone please help me?
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davevv
Retro Apprentice
Posts: 5
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Post by davevv on Sept 8, 2011 6:33:20 GMT
Take that as a no lol
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Post by deegee99 on Sept 8, 2011 10:21:11 GMT
Sorry mate but I'm miles away, but as an aside my mate has a ZZR 600 and he had this problem, turned out he had an after market brake lever and as the actuating point on the lever wore away his brakes got spongier and spongier, he bled it several times but to no avail, I popped over and saw what had occurred, a couple of quid later and a new lever and he had perfect brakes again. I suspect thats not your problem.... but you never know.
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Post by wrighty on Sept 8, 2011 11:06:43 GMT
If you pop the pads out and squeeze lever do both pistons work out?  Could be crap on the seals.... No offence to your skills ...... start a the top make sure you have plenty of fluid. Now loosen the line coming out of the reservoir if fluid comes out then you are good there, Tighten it back up. Check your fluid level after every step. Now follow the line down to a splitter on your lower triple. Loosen the incoming line from the reservoir make sure you are getting fluid. Tighten it back up refill your fluid. Check the outgoing lines from the splitter (one at a time) if you are getting fluid tighten them back up and check your fluid level.Now follow the lines to your calipers.( again one side at a time). Loosen the connection leading into the caliper check for fluid. Tighten the line back up. Repeat on the other side. Now up to this point if you haven't gotten fluid from any point you have a line stopped up more than likely. Look for kinks or move along them slowly and pinch them with your fingers if you feel a blockage then remove the line and clear it out. If you have gotten to the calipers and still are getting fluid then your caliper(s) are shot. |
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Post by dungbug on Sept 8, 2011 19:15:10 GMT
When you've got a mo Dave stick a thread in the readers rides section, let the good folk see the beasty  |
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Post by TerraRoot on Sept 9, 2011 12:33:00 GMT
i'm also way to far away to help. AVDS is better blocked off, the theory is sound but the execution is all wrong, stronger springs and damping is needed for better braking, not just increased damping, so simplify with a block off plate!
and if it's not the AVDS acting up, just try the simplest bleeding technic in the world, tie the brake lever on and leave over night, the air will makes its way slowly upwards into the master cylinder, problem solved.
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Post by jawathemutt on Sept 9, 2011 21:50:17 GMT
is the hose/s (in the hood )swelling under pressure,hold the hoses in turn and squeeze the lever(matron) |
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