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05-04-2010, 07:20pm
hi guys,
from my perspective it's likely you are experiencing the same problems as we do in the northern hemisphere from slowly deteriorating calipers
the same ones are used on ZX6, ZX7, ZX9, ZX12, TL1000R, Busa, GSX6 /7 / thou
all of them are a crap design.
the dust seals retain road spray and when the brakes are used the spray boils away and anything disolved in it, road salt over here, crystallizes behind the seals. These crystals over a period of time wedge the seal onto the pistons making them difficult to move out and harder to move back because of the wedging action
as a Busa is so heavy its brakes receive the greatest criticism and everybody goes down the same route to try to make them better
1. new pads
2.braided lines
3.better fluid
4.uprated master cylinder
5. better discs
6. uprated calipers
my suggestion every time is to go back to basics. The brakes were quite good when the bike was new - go check the calipers first and i betcha that of the 6 pistons half of them will be blocked.
Remove the calipers, hydraulic out the pistons, pull the seals and clean thoroughly the hardened residue you then find in the ring lands. Fit with new seals and fluid. Presto - good as new again
btw, I overhaul these 6 potters all the time back home here so i do have a bit of a clue what I'm talking about. Having said that I've kept an eye on the radials on both my K8s and they are exhibiting similar symptoms - it's only a matter of time before they will need stripping too.
Either versions of brake line configuration works, is down to how hydraulics work, aesthetics doesn't matter
from my perspective it's likely you are experiencing the same problems as we do in the northern hemisphere from slowly deteriorating calipers
the same ones are used on ZX6, ZX7, ZX9, ZX12, TL1000R, Busa, GSX6 /7 / thou
all of them are a crap design.
the dust seals retain road spray and when the brakes are used the spray boils away and anything disolved in it, road salt over here, crystallizes behind the seals. These crystals over a period of time wedge the seal onto the pistons making them difficult to move out and harder to move back because of the wedging action
as a Busa is so heavy its brakes receive the greatest criticism and everybody goes down the same route to try to make them better
1. new pads
2.braided lines
3.better fluid
4.uprated master cylinder
5. better discs
6. uprated calipers
my suggestion every time is to go back to basics. The brakes were quite good when the bike was new - go check the calipers first and i betcha that of the 6 pistons half of them will be blocked.
Remove the calipers, hydraulic out the pistons, pull the seals and clean thoroughly the hardened residue you then find in the ring lands. Fit with new seals and fluid. Presto - good as new again
btw, I overhaul these 6 potters all the time back home here so i do have a bit of a clue what I'm talking about. Having said that I've kept an eye on the radials on both my K8s and they are exhibiting similar symptoms - it's only a matter of time before they will need stripping too.
Either versions of brake line configuration works, is down to how hydraulics work, aesthetics doesn't matter