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ABS 11 Bleed
- Thread starter wbbaz43
- Start date
m_stock10506
Well-known member
If your thread title is correct for your bike, ABS-II - then bleeding this system is fairly straight forward. ABS-II runs a continuous flow of brake fluid from the master cylinder (MC) to the wheel, with the ABS module in the middle. The front and rear lines are separate although they run into the one ABS module but they have independent pistons in the module - they don't share fluid.
Normal bleeding of this system would be opening the MC and cracking open the bleed valve at the caliper. I keep speed bleeders on my calipers - I like them, some people don't. The lines have to be filled with fluid for a speed bleeder to work; it won't allow the check valve to close without fluid. The front brakes MC is the highest point. If you fill the MC it will pump fluid all the way to the wheel without much fuss. On the rear the ABS module is higher than the MC. This is a problem if the lines are empty. If they are full you can just open the MC and the bleed valve and bleed it - the fluid will draw itself up through the ABS. If they are empty, you'll have to use vacuum at the caliper to pull the fluid up or you have to push fluid from the caliper bleed valve up through the ABS to the MC first.
There are also bleed valves on top of the ABS-II module; one for each front and rear. Once you have the lines filled, and they feel solid, put a bleed tube on the ABS module bleeder and crack it open. "Burp" out any air or old brake fluid that was trapped there and close the bleeder. Do this for front and rear. If needed add fluid to the MC.
Normal bleeding of this system would be opening the MC and cracking open the bleed valve at the caliper. I keep speed bleeders on my calipers - I like them, some people don't. The lines have to be filled with fluid for a speed bleeder to work; it won't allow the check valve to close without fluid. The front brakes MC is the highest point. If you fill the MC it will pump fluid all the way to the wheel without much fuss. On the rear the ABS module is higher than the MC. This is a problem if the lines are empty. If they are full you can just open the MC and the bleed valve and bleed it - the fluid will draw itself up through the ABS. If they are empty, you'll have to use vacuum at the caliper to pull the fluid up or you have to push fluid from the caliper bleed valve up through the ABS to the MC first.
There are also bleed valves on top of the ABS-II module; one for each front and rear. Once you have the lines filled, and they feel solid, put a bleed tube on the ABS module bleeder and crack it open. "Burp" out any air or old brake fluid that was trapped there and close the bleeder. Do this for front and rear. If needed add fluid to the MC.
jpm1074
New member
I found this link when I bled my ABS system a few weeks back and found it very helpful. Hopefully this will assist you as well.
http://advwisdom.hogranch.com/Wisdom/service_abs3.pdf
http://advwisdom.hogranch.com/Wisdom/service_abs3.pdf
