F800GS ABS problem - need help

[Pangia]

[QUOTE=docsherlock;20729934]You see, I just don't want shit like this in my life - I have enough already.

That's why I just bought a 2012 V-Strom 650. ABS can't be turned off, but it shouldn't blow a gasket every time one wants to use it either....

Docsherlock: The F800GS runs great, it is just that the ABS will not turn off and it has the option to be turned off. I want to be able to turn off the ABS because I ride dirt about 70% of the time and I need to be able to lock up the rear wheel. I did not mean to imply that the bike was not functional - I just had ABS when I did not want it....which is about 70% of my riding time. BMW will have it fixed in 2 weeks.

I am the one that blew the gasket.....I became trigger happy when I figured out how to insert the cow taking a dump gif.

Cheers and enjoy that V-Strom, looks like a nice ADV bike!

[JRWooden]

Originally Posted by Pangia

JR Wooden, Thank you for the reply regarding the Burnsmoto switch. Stephen from Burnsmoto replied that he has "stopped making and selling that cable as sales were very low. i would use the GS911 to diagnose your problem."

Regarding my ABS not turning off: My dealer was able to identify the problem - it is within the BMSK. There is no fault that will display on their shop diagnostic computer system for this particular situation. To diagnose, they put in a donor BMSK and then the ABS would turn off - so that is how the issue was diagnosed. They will have a replacement BMSK delivered in 1-2 weeks.

I have to hand it to my dealer - they were resourceful and put in a lot of extra hours to get this resolved as fast as they could.

Regarding riding with the ABS on - I did go for another ride yesterday, an 85 mile loop of dirt, gravel and forest service roads that I use as my "training ground" and there were a few times I wish I could have locked up the rear wheel. Instead, I had to downshift a lot more and not go into corners as fast as I might otherwise.

I'm glad they figured it out!
Most of the time the ABS is fine, but there was this one time I was forced of the road on to a short section of dirt/gravel and the ABS kicked in inhibiting me from locking up the back wheel... I quickly saw that I was going to go through the guard rail at the end of the cutout if I didn't come up with another plan ... I was cussing the ABS the entire time ..........

I ended up squeezing back onto the edge of the asphalt right behind the jerk that had cut me off and managed to save things ...............

I think I would change the programming of the rear ABS to add a "rule" that says if the rider has attempted to have the REAR tire locked up for more than (say) 3 seconds ... go ahead and let him do it.......

[Steveman]

Originally Posted by JRWooden

I'm glad they figured it out!
Most of the time the ABS is fine, but there was this one time I was forced of the road on to a short section of dirt/gravel and the ABS kicked in inhibiting me from locking up the back wheel... I quickly saw that I was going to go through the guard rail at the end of the cutout if I didn't come up with another plan ... I was cussing the ABS the entire time ..........

I ended up squeezing back onto the edge of the asphalt right behind the jerk that had cut me off and managed to save things ...............

I think I would change the programming of the rear ABS to add a "rule" that says if the rider has attempted to have the REAR tire locked up for more than (say) 3 seconds ... go ahead and let him do it.......

In such situations its not easy to react right, similar thing happened to me just that it was a steep slope with gravel and at its end there was a paved road with lots of traffic. Unfortunately I stopped the engine on that hill, took a brake and went on - forgetting to switch the ABS off. When I tried to brake I realized that I would not make it and most probably cross the highway with loads of traffic. Not good. I squeezed both brake levers and went down without loosing much speed and I was staring at the cars crossing like a hypnotized cow. Shortly before the end of the slope I heard a voice saying: kill that engine fucking idiot!

So I did, and the ABS was off immediately. Sure the engine cut out too but I really did not need it but could block the rear wheel and brake hard on the front. I just(!) made it :)

Cheers Steve

[JRWooden]

Good advice Steve!
Thanks!

I've been riding many years, but this is my first ABS bike, and I am mildly embarrassed to say I had not considered killing the engine...

You turned it off at the key yes?

Now I am wondering if ABS works with key-on and engine killed via kill-switch or a stall................

[Steveman]

Originally Posted by JRWooden

Good advice Steve!
Thanks!

I've been riding many years, but this is my first ABS bike, and I am mildly embarrassed to say I had not considered killing the engine...

You turned it off at the key yes?

Now I am wondering if ABS works with key-on and engine killed via kill-switch or a stall................

Hi Mr Wooden, Sir, nice to see you!

I admit, taking one hand off the bar while going down a hill with midsize gravel is definitely a challenge, but much better to risk going down instead of running over a busy road and being hit by a car. I turned the kill-switch not the key. The engine immediately died allowing me to lock the rear wheel, I did not care about the clutch and the engaged gear as I needed all my concentration to slow down the front wheel close to its locking limit. I just made it. I was amazed and all I needed to do was calm down and head home for fresh underwear

[JRWooden]

Originally Posted by Steveman

Hi Mr Wooden, Sir, nice to see you!

I admit, taking one hand off the bar while going down a hill with midsize gravel is definitely a challenge, but much better to risk going down instead of running over a busy road and being hit by a car. I turned the kill-switch not the key. The engine immediately died allowing me to lock the rear wheel, I did not care about the clutch and the engaged gear as I needed all my concentration to slow down the front wheel close to its locking limit. I just made it. I was amazed and all I needed to do was calm down and head home for fresh underwear

Good to be seen by a man of your caliber and standing in the community ..
That's a good tale with a happy ending ...

[Steveman]

Now that I think about it and try to understand the technical background I wonder if this was a malfunction. Th elonger I think about it the more I am convinced that the ABS should work when the engine is killed via kill-switch...
Cant check it with my bike at the moment, its too cold and I have no wheels installed...

CU
Steve

[JRWooden]

Originally Posted by Steveman

Now that I think about it and try to understand the technical background I wonder if this was a malfunction. Th elonger I think about it the more I am convinced that the ABS should work when the engine is killed via kill-switch...
Cant check it with my bike at the moment, its too cold and I have no wheels installed...

CU
Steve

I wasn't thinking clearly about it either, but now with coffee in hand instead of ...

Maybe what really happened is that with engine off and the clutch ENGAGED the back wheel will not be turning (in gravel) you'll just be dragging the back wheel along regardless of what the ABS is saying because the engine is just holding the rear wheel from turning via the drive chain, and braking action could be somewhat modulated by the clutch ...

But yeah... understanding what ABS does with ignition on, engine off is something I now think I should understand better

[Steveman]

I tried to search the net yesterday but found only a lot of bullshit concerning cars. Nothing about bikes. I wonder if someone could tell me if the ABS module works only when the engine is running or if it works when ignition is on, which is the case when I cut the engine with the kill-switch.
A mate meant that once the speed drops below 5mph the ABS is inoperative, but I really know that I was much quicker. End of March I can test this, I will just kill the engine and see what happens when I brake hard, I will test this with the key and kill-switch.
Maybe a wiring or schematic of the system may help. I really want to know what was going on. Till we chatted about it I did not even think that I might have misunderstood something. I can remember that I was able to brake harder with the front brake too....

But you know, when old men think they can remember....

[JoelWisman]

Originally Posted by Steveman

I tried to search the net yesterday but found only a lot of bullshit concerning cars. Nothing about bikes. I wonder if someone could tell me if the ABS module works only when the engine is running or if it works when ignition is on, which is the case when I cut the engine with the kill-switch.
A mate meant that once the speed drops below 5mph the ABS is inoperative, but I really know that I was much quicker. End of March I can test this, I will just kill the engine and see what happens when I brake hard, I will test this with the key and kill-switch.
Maybe a wiring or schematic of the system may help. I really want to know what was going on. Till we chatted about it I did not even think that I might have misunderstood something. I can remember that I was able to brake harder with the front brake too....

But you know, when old men think they can remember....

The ABS functions with the engine on or off and regardless of kill position switch. It also continues to work for about 2 seconds after the key is switched off till the canbus gets around to sending a 9flag to the ABS module. It also functions down to 3Km on an F8, much slower then 5MPH

That said, I haven't actually read what issue your talking about but will go hunting for it :)

[Steveman]

Mh...I am not convinced that ABS works with engine killed to be honest. I need to try it myself but am currently unable to do so.

Regards Steve

[JRWooden]

Originally Posted by Steveman

... But you know, when old men think they can remember....

Sometimes they can even remember shit that didn't happen
I do it with some regularity...

[Steveman]

Originally Posted by JRWooden

Sometimes they can even remember shit that didn't happen
I do it with some regularity...

Have we ever met?

Am just asking as it seems you know me so well

[JRWooden]

Originally Posted by Steveman

Have we ever met?

Am just asking as it seems you know me so well

I don't think so, but ... I could have forgotten....

[Steveman]

Sorry, I know I am indeed late but well all the snow and ice made it impossible to even get close to my garage

Well, I have to admit that I told you all bullshit, so accept my sincere apolgies for that.
Dont try to kill your engine with the kill button to work around "the forgotten ABS deactivation". It will NOT work.

I was in the garage jumped on the fat F8, in second gear I killed the engine and guess: yes the ABS worked! Front and rear

Mh, as Mr. Macklemore (in his song "thrift shop") says, this is f*****g awesome....

Regards
Steve