I recently rebuilt all 3 brake calipers on my 96 ST1100 ABS with linked brakes and had a problem getting a proper bleed when just following my Clymer service manual or reading online tech articles. After rebuilding calipers, mounting and reconnecting brake lines, I filled both brake fluid reservoirs and went one by one to each of the 9 bleeder nipples but was only able to suck fluid and air from 8 of them. Using a vacuum bleeder I could not pull anything from the rear bleed screw on the rear caliper, see below:
After reading how linked brakes work on the ST, I realized the secondary master cylinder on the front fork needed activating for this particular brake circuit to work (rear caliper, two outer pistons). So I did this to activate the circuit and allow me to pull air and fluid through.
In the end I was able to get a successful bleed on this circuit and am happy with it, just wondering if others had to do this when working with linked brakes and a system completely purged of fluid?
Thanks
-mtnpat
After reading how linked brakes work on the ST, I realized the secondary master cylinder on the front fork needed activating for this particular brake circuit to work (rear caliper, two outer pistons). So I did this to activate the circuit and allow me to pull air and fluid through.
In the end I was able to get a successful bleed on this circuit and am happy with it, just wondering if others had to do this when working with linked brakes and a system completely purged of fluid?
Thanks
-mtnpat