Rear brake...

[ide508]

Hello there,

I went on for a ride today after some times spent abroad (+- 4 weeks, the bike was hooked to a BMW charger during that period)

The first thing I found was that I could press the pedal almost all the way but had very very little response. In fact, such a response that I was unable to 'lock ' the rear wheel or having the ABS respond.

I've looked in the manual, but nothing about the rear break adjustment.
I know that there is a bold close to the pedal made for adjustments but really don't know how to use it

I almost don't use the rear brake, but it scares me to think that I don't have one... when needed!
The bike has 8500km and the yearly maintenance has been done in less than 500km .

Any help is welcome before I hit the tarmac to my "favourite" dealer

 

[ILMV]

Rear brake fluid reservoir at the correct levels, no air / dirt inside?

 

[ide508]

Nope, level is ok, the colour is not clear as the front break reservoir though (2008 bike) and no sign of air/dirt inside.

tks for you're input

 

[Murdoch]

Don't adjust it.

I had the same problem with my 800 last year and adjusted the linkage to get it to work. A couple of days later the rear brake was binding on as I rode so I had to back it off again then again a few days after that. It has never been predictable, sometimes it is just fine and other times the pedal goes right down. The dealer bled the system last time it was serviced and it was perfect on the way home but that didn't last long.

 

[ide508]

Tks for y're input though not very heart-warming / re-comforting (?)

Waiting for other comments...

Cheers

 

[ide508]

Rear pad...

They don't look as new, but I think that they are still thick enough.

Don't know if this help?


Cheers

 

[Greggers]

Ide

I can't see any connection between the charging operation and the physical response of the brake...

TBH it sounds like it needs bleeding, but you could try pushing the lever down fully with something, leaving it overnight like that then trying the brake the next morning. It might just help.

G

 

[ide508]

Thanks Greggers, will try that tomorrow nite, who knows it might just help,

 

[Dave Ett]

It could do with a damn good strip down and clean looking at that shot!

Recently did mine, and I suspect you'll find the sliding pins are not greased, and will have corroded slightly, causing the brake to bind.

 

[v8legend]

Hello there,

I went on for a ride today after some times spent abroad (+- 4 weeks, the bike was hooked to a BMW charger during that period)

The first thing I found was that I could press the pedal almost all the way but had very very little response. In fact, such a response that I was unable to 'lock ' the rear wheel or having the ABS respond.

I've looked in the manual, but nothing about the rear break adjustment.
I know that there is a bold close to the pedal made for adjustments but really don't know how to use it

I almost don't use the rear brake, but it scares me to think that I don't have one... when needed!
The bike has 8500km and the yearly maintenance has been done in less than 500km .

Any help is welcome before I hit the tarmac to my "favourite" dealer

I've had a similar experience with mine. I suspect you've got glazed pads. Either take them out and clean them with emery paper (by the looks of the pics, it could do with a clean anyway). Or do what I did. Try some fairly hard and repeated braking using just the rear brake.

 

[ide508]

Thanks, will try that also.
I took that picture just returning from a very wet drive, the bike is usually a lot cleaner

Cheers

 

[divanmostert]

Hi all...

I have also noticed that I have to push my rear brake down quite far in order for it to work.

However, I have fitted an Adventure Spec bashplate last night and realised that the brake pedal catches it, leaving me with no rear brake - unless I pull it away from the bike, sliding it past the plate. The brake fluid reservoir is half way between min and max when on center stand.

Has this happened to anyone? If not, then I think I need to bleed my rear brake - does anyone have the steps to do this?

Many thanks.

 

[Deano64]

That sound strange

I've got adv spec bashplate on my 800 and sometimes I catch the front of my foot on it, but certainly not the pedal itself

 

[alphadog]

i would suggest a good clean first,if the bike has been standing for a while the fluid will need changing,it does absorb moisture,dont know how but it does.

to me sounds like the pistons in the caliper are just a little "lazy" and are sticking.maybe corrosion has set in a little.
you didnt say how long the bike stood for .[yes you did,oops my mistake] 4 weeks isnt long.]
bleeding with an abs system isnt the same as normal bikes, [brakes] check the manual.
[well its not the same on the 1150 and 1200 anyway.]

 

[Dean]

The first thing I found was that I could press the pedal almost all the way but had very very little response. In fact, such a response that I was unable to 'lock ' the rear wheel or having the ABS respond.

I've looked in the manual, but nothing about the rear break adjustment.
I know that there is a bold close to the pedal made for adjustments but really don't know how to use it

I almost don't use the rear brake, but it scares me to think that I don't have one... when needed!
The bike has 8500km and the yearly maintenance has been done in less than 500km .

Any help is welcome before I hit the tarmac to my "favourite" dealer

Hi Bernard, I have the same problem I would say if you look at the bike and the rear brake pedal is at 3 O clock when not used then it feels like 5 or 6 before I get a result.

I have mentioned it to my main Dealer first time the adjusted so fine that the rear slowly seazed up in the dark the rear disc was glowin like a UFO bright orange. the dealer collected my bike and i insisted they change the rear pads and disc FOC which they did and returned the bike.

It has been back for a service since and I mentioned the extra travel and they felt all was OK.

It apears to again have to much un adjustable free play so it will go back to the dealer for them to sort pretty soon. Its like a lot of things when they gradualy get worse you do not seem to notice.

I use my rear brake quite a bit. so if you get yours figured out post up please
the solution.

personaly I think its a pressure of fluid problem but for what reason

 

[chas820]

I had a similar problem when mine had about 2000 miles on it.The fluid went dark and the brake wouldn`t operate.The dealer flushed it through and bled it,no further problem.The dealer said some bikes do this and others don`t but he didn`t know why.

 

[divanmostert]

Hi all...

I have also noticed that I have to push my rear brake down quite far in order for it to work.

However, I have fitted an Adventure Spec bashplate last night and realised that the brake pedal catches it, leaving me with no rear brake - unless I pull it away from the bike, sliding it past the plate. The brake fluid reservoir is half way between min and max when on center stand.

Has this happened to anyone? If not, then I think I need to bleed my rear brake - does anyone have the steps to do this?

Many thanks.

Ok, I have fixed my issue - just replaced the brake fluid.

I have one question though - what is the purpose of the black thingy that goes into the rear brake fluid reservoir?

 

[ide508]

Sorry but hadn't have time to ride it yet

BUT I also thought about the Adv Spec bash plate that I have. I did notice that the pedal goes right down ON the Adv Spec plate!

The bike has been serviced 500 km ago and they had to remove it so I figure that they didn't replace it correctly. So I removed it and slide it at the maximum that was possible leaving the break pedal to be slightly clear of the bash plate (to the right of it).

for those who have that bash plates, where does the pedal stand in relation with the bash plate? as I said mine is now very slightly to the right of it when pushed down...

Maybe this will do Soon to be tested.
Will certainly keep you posted!

 

[divanmostert]

Sorry but hadn't have time to ride it yet

BUT I also thought about the Adv Spec bash plate that I have. I did notice that the pedal goes right down ON the Adv Spec plate!

The bike has been serviced 500 km ago and they had to remove it so I figure that they didn't replace it correctly. So I removed it and slide it at the maximum that was possible leaving the break pedal to be slightly clear of the bash plate (to the right of it).

for those who have that bash plates, where does the pedal stand in relation with the bash plate? as I said mine is now very slightly to the right of it when pushed down...

Maybe this will do Soon to be tested.
Will certainly keep you posted!

Mine stops at about 10-15mm above the plate now

 

[ide508]

Tks, but when you look from the top of the bike, does the pedal stands inside or outside or right on the bash plate?

Anyhow, my pedal goes down to deep !!!