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I completely drained the system took it apart and blew out the lines needless to say it was pretty dirty. After I put everything back together I did not see any bubbles in the rear brake reservoir while pumping the brake pedal. I was using the bleed screw on the front only. i’m not getting anything. I tried to vacuum and also wasn’t pulling although when I put air into the bleeder screw bubbles came up to the reservoir. I just noticed a Another bleeder nipple on the other half of the caliber do I need to bleed this side also. Could this be the problem or is it the master cylinder. Bike only has 5100 miles
 

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I've just done the rear caliper on my 91 1100, they should be pretty much the same.

I've found that the vacuum pump is good for getting things started and then I switch to the normal pump lever, crack nipple, close nipple, pump lever routine.
I found the vacuum pump to be a bit misleading as theres still bubbles that get drawn in around the nipple threads. I only used one bleed nipple on the rear caliper?
I bled the system fairly quickly after using the vacuum pump to get it started.

Not quite sure from what you described how your bleeding the system exactly?

Liam
 

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I was using the hand vacuum pump but wasn't drawing any fluid but I just ordered a air vacuum pump so we'll see. Worse case I'll order a rebuild kit for the master. Thanks for mthe reply.
 

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i'm not sure what problem you are experiencing? bleeding brakes is straight-forward, and yes, you do need to bleed both caliper nipples. hand-held vacuum pumps are excellent tools.

is the system pushing brake fluid? if not, sounds like you might have a defective master cylinder.
 

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If the master cylinder and caliper have never been apart, they need a rebuild. Disassemble both of them, clean everything and re-assemble. If there is any visible wear on the rubber parts, replace them.

If the hose is original, replace it. Suzuki's suggested replacement interval was 2 years. We usually go longer than that but 2 decades or more is pushing it.

You bleed from both screws. Bleed the closest one to the caliper fluid inlet first, then the other, then the first again. Etc.
 
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