After installing new bars, braided lines, and chrome calipers, we just can't seem to get the dam things to purge completely of air.
Any help would be very much appreciated.

 

Forcing the fluid in thru the bleeder screws works well. Or some sort of Mighty Vac/ vacuum pump. After getting some lever feel, let the fluid stabilize for a little while then bleed regularly. You may need need to turn the bars to make sure the banjo at the master cyl is not the highest point, or the air will just stay there.

ETA: Pushing the pistons slowly back into the calipers can get rid of stubborn air as well. If you have sticky pistons, the air may be gone, but the brakes will still feel spongey.

 

Try pulling in the front brake lever and tie it up with a bungee cord. Let it sit over night, then take a screwdriver and tap the brake res, and release the lever and try it then. It should get a lot of the air out, someone had a write up on here in the DIY section and it worked great for me last year at this time. I also bought speed bleeders and put those in also.

 

Totally agree, it works the best to initially bleed from the screw on the caliper just pump away, then go back and do it from the master cylinder as normal.

 

Tie the brake lever back with the M/C lid off and leave it over night. Had that work a couple times.

Mark

 

Also you can open the caliper bleeder and pour in a full amount of fluid into the master cylinder and just let it run through th system being very carefull never to let it run low and introduce more air. Basically your flooding the lines via gravity......

I've done that for peace of mind knowing that I have introduced a contiguious amount of fluid into the system for sure. THen I bleed as normal.

 

Pump slowly - like you love her - and watch the air bubbles rise in the MC. Seriously !

 

We were at it for over an hour, and although we did get some feel in it, it isn't purged yet.
What if there is a high spot in the line?
Like were it goes from the master cylinder in under the dash pod, and across and up so it can go down the fork leg to the t fitting.
Is it possible there is air caught in there and we just need to keep purging?

 

If I buy a Mighty Vac, and push the fluid up, should I be starting with an empty or nearly empty master cyclinder?

 

What he said. I used a wire tie. Just make sure you have the master cyl. cover loose ( so the air can come out) and when you let the lever back do it slowly the first time. I suspect that you are getting air back in the master cyl. when you release the lever. Its real important to have the cyl level when bleeding brakes.