How to bleed the abs/servo modulator on R1200GS 2005?

Irlanski

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Hi All,
I've been trolling through the posts but I can't find specifically how to bleed the abs/servo modulator on the R1200GS - year 2005.

To cut a long story short whilst changing the final drive oil (no drain plug type) I decided to service my very poor rear brake into the bargain. One theory I had was that there was the possibility of a blocked brake hose to the caliper as a friend had already experienced this and so in mucking about to check that and then bleeding the rear brake I seem to have inadvertently taken air in all the way up to the abs/servo modulator unit. I can't get any priming going now. Don't ask me how, it just wasn't my day and i'm usually a bit sharper than this! :confused: It may not have helped the fact that I tried to pump fluid out through the bleed nipple with the abs powered on and a couple of presses of the brake pedal - I wanted to see the reservoir level drop but it never did although the hose to the master cylinder is delivering fine.

Anyway, where to from here? Ideally do I need diagnostic stuff eg GS911 or what? Is there any good links for same? I seen a few links but for the 1150 - the set up there appears different than the 1200.

Maybe its a a fairly straightforward job for the dealer?

Any thoughts?
 
The Servo pump has its own internal reservoirs, which you have now drained. You will need to remove the fuel tank to gain access to the Servo pump, then unscrew the caps on the two reservoirs and top them up. Then it is just a process of flushing fluid through the various hydraulic lines for the pilot and main brake lines. There is a sequence to follow when bleeding but I can't remember it, try a search.
 
Pukmeister said:
The Servo pump has its own internal reservoirs, which you have now drained. You will need to remove the fuel tank to gain access to the Servo pump, then unscrew the caps on the two reservoirs and top them up. Then it is just a process of flushing fluid through the various hydraulic lines for the pilot and main brake lines. There is a sequence to follow when bleeding but I can't remember it, try a search.
Click to expand...

Thanks Pukmeister.
I didn't realize there were top up reservoirs there too on the 1200 - I'll go whip the tank off and have a peep... Thanks
 
Irlanski said:
Any thoughts?
Click to expand...

Did you run the Modulator dry??? (Whirring sound changed pitch and fluid ceased to flow through the nipple?)

If so I recommend pulling it out, The really really really do not like running without fluid

IN fact I recommend pulling it out now anyway because it is not "If it fails it is a question of When it fails!!"

Its an easy procedure Info Here

If you read the first post you can see the method that was originally suggested

BUT that method will NOT work with an R1200 or K1200 OR 1100S or 1150 Roxter as they have no speedo drive and speed info is taken from the speed sensors

You need to retain the electronics box for your bike as per post 195 click the link in the red typing

If you want to retain the OE look of things Part 9 will sort the front pipes


The rear needs a couple of more parts but I used these parts on my own bike to remove the ABS unit So instead of running from the rear master cylinder all the way to the servo unit There is the short bit of pipe that clips into the pipe adapter

It makes it all look very factory
 

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