Voyager· Premium Member
I just flushed my 2007, but I am not sure if your 2002 system is the same as mine. However, no matter what system you have, the fluid out vs. fluid in should be 1:1 ratio no matter what!beemer100 said:Thanks Mark and KSBaltz.
Mark, when you speak of the volumes going down relatively small, I was assuming a 1:1 relationship between what's going into the Speedbleeder bag from the ABS unit to the amount I am filling back up in the handlebar reservoir. Is this an incorrect assumption?
It just seemed that more fluid was coming out than was going in. I have about 12 inches of the speedbleeder bag that has filled with the fluid from the ABS unit. I also have the bag elevated above the bleeding point as indicated per instructions.
I'm assuming I continue along as I am doing until I see that all the fluid is clean and bubble free, and that I should at some point have to refill the handlebar reservoir. . .
Thanks again for the help.
If you are flushing the control circuits, you need not and should not have the key on so the pump should not be activated. I could watch the fluid go up the tube to the speedbleeder bag each time my wife pumped the brake levers. The control circuits don't displace a lot of fluid on each stroke. I think the fluid only moved 4" or so through the plastic tube and it took a lot of pump strokes, maybe as many as 20 in order to nearly empty the handlebar reservoir.
I started by sucking out as much old fluid as I could and then filled the reservoir with fresh fluid. We then pumped until the reservoir was down to the razor blade and that had plenty of clean fluid through the system. I then removed the razor blade, topped off the reservoir and re-installed the cover.
If you really have filled the bag and not lost any fluid from the handlebar reservoir or rear brake control circuit reservoir, then I fear you have actually drained the ABS modulator. There are 6 bleed valves on the modulator and I don't know what happens if you open either the metering circuit bleeder or the integral circuit bleeder instead of the control circuit bleeder and then activate the pump. See the picture in the document below in the sections on the front and rear control circuits.