Originally Posted by mikeurtno
But its not hard to bleed brakes by hand... why waste money on a mighty vac?
Sent from my SAMSUNG-SGH-I727 using Motorcycle.com Free App
Main reason is it saves time. Not so much on a simple flush but when new lines go on I don't feel like waiting for gravity to pull the fluid thru. The Mity Vac is a personal preference so use it if you like it and if you don't like it then don't use it.
Here is one for youns. I rebuilt a set of calipers and fluid would bleed from one but not the other. Drove me nutz trying to figure out what the problem was so I google it and some one on a Yamaha board had the same problem which was with the pistons pushed all the way in there the fluid would not get behind unuf to push them out. Little shot of air to move the pistons forward was all it needed.
Google also found the problem with after market levers that would apply a little pressure to the master cylinder and not let it release. That one took me by surprise but a little filing and a dab of paint had them levers working great.