How far back should your brake lever go?

[stevierst]

Another thing people overlook is the piston seals. Over time they obviously break down and the outer seal gets distorted and smears between the piston, and cylinder acting almost like a rubber band. you squeeze the lever, pistons move, then you let the lever go, and the seal retracts, dragging the piston with it. you then have to pump the lever to get the piston moving again :o

I had this on my sv650 where it was terrible braking, and until I changed the seals on my boxeye, it was starting to  happen there too. I bleed the brakes pretty regular due to the blue spots being quite sensitive, so I know it wasn't that.

its just something else to look for of bleeding doesn't work.