Is my servo going.....going.....gone

[waynem]

2006 GS with 51 thousand miles, my brake warning light comes on sometimes flashing fast, sometimes flashing normal , when flashing normal I can hear the servo if I pull the brake lever, flashing fast there is no noise and no servo, this has happened a couple times when I have ridden out of necessity, being out in the middle of nowhere and the servo will come on after a couple of miles. Am I toast or is there maybe another thing I can do before having to have my servo replaced, which if I remember from earlier posts is LOTS of dollars.

[LaurelPerryOnLand]

When was the last time you SERVICED your SERVO?

Low fluid level might create these conditions....

BTW...2006 with 31K

BBTW...have you seen this?
http://advwisdom.hogranch.com/Wisdom/service_abs3.pdf

[waynem]

had all fluids and new pads put on for the trip to Inuvik, I turned off the ABS everytime I rode gravel ( about 1500 miles this past summer ) and wonder if ABS might be an issue, I know.....I am grasping at straws

[waynem]

have said this might be due to a faulty brake switch, and in fact my rear brake light has been sticking on and I am pretty sure it is from the front brake lever, so...how do I check that switch?

[SR1]

Your bike has 51k on it now but you had it serviced at 54k?

[waynem]

45k , the bike has been taken care of, all services plus have been done...ooops ( as a texan once said )

[SR1]

Pardon me, I'm just trying to figure out when/what (mostly for myself), in the beginning of the thread you said 51k on the bike but then you answered that all services were done at 54k. I know you didn't go back in time to post this, so I'm trying to figure out when you did get the service, and if the issue was coincidental with the service.

Ahh, 45 not 54k. Got it. hmm...

[BluByU]

Check he battery, low cranking voltage can d some funky stuff.

Might want to pick up a GS911, will help out in finding out what the heck is going on (worked for me along with ADV)

[bajarider]

Me thinks it's a battery related problem.

Same bike with a one year old battery and the same sintoms.
Under warranty.

Bajarider

[Mudcat]

Originally Posted by waynem

have said this might be due to a faulty brake switch, and in fact my rear brake light has been sticking on and I am pretty sure it is from the front brake lever, so...how do I check that switch?

If your rear brake light is on when you turn on the ignition switch, then you do have a switch sticking on. This causes ABS,sevo shutdown at start up.
Hey, your hand guard isn’t touching the front brake lever is it? If so, that is your problem
When you operated front brake lever you should hear a faint click, this generally indicates the switch is working properly. The same with the rear brake pedal and switch.

When you turn on the ignition switch and the computer boots up completely, the brake failure light should be blinking slowly.
If it is blinking fast then you have ABS/sevo shutdown.

If you are experiencing ABS/servo shutdown while you are riding and using the brakes, this is most likely caused from low brake fluid in the ABS/servo unit.
You can lose fluid from the unit if you drop the bike.

A weak battery can cause these issues too but your rear brake light will not be sticking on. That is a brake switch.

[SR1]

Originally Posted by Mudcat

If your rear brake light is on when you turn on the ignition switch, then you do have a switch sticking on. This causes ABS,sevo shutdown at start up.
Hey, your hand guard isn’t touching the front brake lever is it? If so, that is your problem
When you operated front brake lever you should hear a faint click, this generally indicates the switch is working properly. The same with the rear brake pedal and switch.

When you turn on the ignition switch and the computer boots up completely, the brake failure light should be blinking slowly.
If it is blinking fast then you have ABS/sevo shutdown.i

If you are experiencing ABS/servo shutdown while you are riding and using the brakes, this is most likely caused from low brake fluid in the ABS/servo unit.
You can lose fluid from the unit if you drop the bike.

A weak battery can cause these issues too but your rear brake light will not be sticking on. That is a brake switch.

Great answers, especially the "check the handguards" advice.

[LaurelPerryOnLand]

If you are experiencing ABS/servo shutdown while you are riding and using the brakes, this is most likely caused from low brake fluid in the ABS/servo unit.
You can lose fluid from the unit if you drop the bike.

+1 on what mudcat said ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

[waynem]

I think you have hit on my problem, the break light is on when the switch goes on and no click, now to find how to free or replace the switch on the handbrake.

[Mudcat]

Originally Posted by waynem

I think you have hit on my problem, the break light is on when the switch goes on and no click, now to find how to free or replace the switch on the handbrake.

It might be dirty. I have had good luck just flooding the switches with WD40
Below is a link to rdwalker’s great thread on the clutch switch adjustment. The brake switch is very similar, it may be the same switch, I have never bothered to check the part numbers.
http://www.advrider.com/forums/showthread.php?t=376181

[waynem]

the switch and housing look exactly the same and I can get the servo to set and break light working if I take the switch out and manually operate it, unfortinately it has come apart so I am ordering a new one, thanks so much for the clutch description, it made it a lot easier. Love advrider