brake bleeding lots of air

[idflyit]

i would think,with this much air there would be brake fluid on my shop floor...I am using a Might Vac.have pulled 16oz. of new brake fluid through the LF bleeder. Pedal has ZERO feel..Im LOST...PLEASE & THANK YOU to all who reply

[dingdong]

When are you seeing the air that you speak of? With a mighty vac you can draw air from around the hose connection as well as the threads of the bleed nipple. I would try with a helper to bleed by pumping the pedal. That said with no brake pedal pressure at all, Im guessing you have a failed master cylinder.

[bellboy40]

Have you tried bleeding the rear caliper? You didn't say what you are working on but, if it is a 99 Goldwing, the left front and the rear calipers are linked in the braking system and both operate when you use the brake pedal.

[joeincalif]

I have had lots of luck with gravity bleeding. Put the hose in a container open the bleeder valve, let gravity do the work, Keep an eye on the reservoir so it doesn't run out of fluid

[Happytrails]

I like to bleed brakes the old school way into a bottle up higher. Recently I tried reverse bleeding just to see if it did any better. It was ok. For a motorcycle benchbleeding, regular old style bleeding the caliper into a bottle and then put something on the brake pedal over nite, sometimes 2 if you like.

+1 on the air bubbles coming from threads using a mityvac. A mityvac is a great tool mine is about wore out but I dont prefer it for a motorcycle.

[CrystalPistol]

+1 on the air bubbles coming from threads using a mityvac. A mityvac is a great tool mine is about wore out but I dont prefer it for a motorcycle.

Regular axle grease wiped on the threads at point they enter the caliper after loosening the bleeder valve helps.