Finally tried to "air" (direct translation, dont think its correct) out the rear brake. It did not do any good. No brake at all on rear. So we (with my dad) broke the rear main cylinder apart and I think we found out whats wrong with it.

http://kotisivu.dnainternet.net/ajk73/Brembo1.jpg I believe there should not be a hole in that rubber seal? Am I right? Other pic: http://kotisivu.dnainternet.net/ajk73/Brembo2.jpg and on of the cylinder itself - http://kotisivu.dnainternet.net/ajk73/Brembo3.jpg

Dont know if there a repair set for these available, but found one whole cylinder that should be OK from a motorcycle trash yard near me for 30 euros. Getting that next wednesday. We shall see then..

You can get a complete overhaul kit from motorworks... motobins etc.

Below are the bits you will get. As you have got it apart it would make sense to overhaul it....

do'nt forget to check that the tiny transfer hole in the cylinder wall is clear. i believe a previous post has detailed this with excellent pictures.

Looks like there is in that pic some stuff I dont even have at all... Those gold coloured parts don't seem familiar. Not at the garage right now so cant check, must do so tomorrow. I think I will get that second hand cylinder (it should be OK) and maybe later get that overhaul kit and fix the other cylinder (little short of money atm).

Transfer hole?? Would someone link that other discussion to this one?

Edit: I think that kit is for Magura? What that D = 12mm stands for in this link:
http://www.motobins.co.uk/displayfinal.php?function=show&subs=106d&title=(BREMBO+%26+MAGURA)+REAR+MASTER+CYLINDER+OVERHAUL+KITS

I measured my cylinder and it is 11mm. Must redo measuring too..

Tenox wrote:Transfer hole?? Would someone link that other discussion to this one?

https://www.k100-forum.com/t1301-brake-seizure
------------------------------------------------------------------------------

About the gold coloured parts, they're present on all models.
The most forward one is mounted at the brake pedal.

Thanks Inge and Sven! If I decide to fix the old cylinder must check that too.

It also is a overhaul kit with only a new piston (with mounted seals) and the spring available.

EDIT: it looks like this kit is history..........

As you earlier mentions, the kit shown is for a 12mm cylinder.

You should have a 13mm cylinder, and the distance piece between the adjuster screw and piston looks a bit different......(about the gold coloured parts).

Inge K. wrote:You should have a 13mm cylinder, and the distance piece between the adjuster screw and piston looks a bit different......(about the gold coloured parts).

Oh. I just got what those golden pieces are. They are still attached on my brake pedal, thats why I did not figure them at all. (And they are in teflon finish on my bike...) Still think that my piston and cylinder are 11mm, but I will check that again today. Overhaul kits cost about 60e + shipping (~10e) in Finland so I going with the used cylinder for now.

Edit: Remeasured the piston and it really is 11mm..

Well well well.. It seems that someone has fitted some not original rear cylinder to my K. It had this extra metal plate under it but I thought that it was just because there was a broken bolt on the part where cylinder attaches. Now that we got that bolt out and put some new threads on hole it seems that the cylinder wont fit on those original holes (and that is the reason for that extra plate). This explains the 11mm piston too I guess. Lucky that the scrap yard has original one for sale since I dont know how to get an overhaul kit to this cylinder, since I don't know where it is from.

Sure hope that the "new" part fits. Should have it at wednesday and with a little luck the whole bike should be ready then.

New cylinder in place and working.

well done Tenox, good to see you're on top of it.

as we say locally "too bloody easy"...onya mate

Yes well. As we got the new cylinder on and working and I installed the taillight etc. we found out that brakelights did not work.. Unbelievable or not both front and rear (which atleats in my bike are completele independent) just dead. Had to tear the whole back open again, and all the electrics I had sealed firmly (for the 3rd time) too. I was just so mad that almost set the bike on fire...

Luckily in front there was only a loose connector (must have happenned while changing the handlebars). In the rear it was the new (60 euros) switch. It just died. With 0 road km.. I just cant understand why. And since we thought it would have been wire problem and opened it up a bit there was no guarantee left. So. 60e on me then. Finally I realized that the switches on front brake and clutch are same than on rear brake. Well on my bike clutch switch is not in use, and it actually was OK. So I would not have to buy that new shitty switch at all. Damn! Now the clutch switch is installed on rear brake and works fine.

In case someone wonders, my bike wont start unless I press the front brake. I don't know why the previous owner have done it that way. Suits me. I have no neutral light so it is better to have some kill system on start.

But for the most important thing the bike is now ready for summer 2013. Today installed a rear reflector and did some cleaning on electronics. Tried to start and it fired up instanly. 1st gear on, clutch seems to work perfectly etc. Drove 2 meters on my garage.

About one month and I'm back on the road again!

Well done Tenox, great stamina to hang in there. You deserve a nice summer now.
Congrats mate.
RT

Thanks! Last summer was not that good, rainy and cold.. Still managed to do little over 10 000km with my last bike (BMW R1200S) and K. Counted that I have been at the garage with K over 100h this winter.

Can't start the bike unless the brake is pulled in.... That sounds like a novel security feature to me.... That or the previous owner put the brake and clutch connectors into the wrong holes! I am sure they are the same switch/connector for both brakes and clutch switch....

They are same yes since the wire and connector from brake is (was) original and so is the one it goes to (which is the one clutch wiring should go to..). I think that previous owner snapped the clutch switch wires off thinking it would not be needed and realized afterwards that the bike won't start. Wires were cut so closely that we had to solder new wires on the switch. So he decided to use brake switch instead. On the minus side bike did not have brakelights at all when I bought it.

We had to rewire the front and do the back from the beginning. I just say that if I sold the bike and the next owner would start to look at the electrics he would be thrilled... That's why I think i will renew the wiring next winter. Have done some wiring and I only have too different coloured wires. So there is lots of red and black wiring and as time goes by no one will ever know what is what and why without thorough testing..

Comes to mind.. Is there any possible harm coming on the fact that I wired the front brakelight switch on the same wire that gives signal to the ECU (I think) that the clutch is pulled and the starter can start? Worked fine last autumn..

Tenox wrote:Comes to mind.. Is there any possible harm coming on the fact that I wired the front brakelight switch on the same wire that gives signal to the ECU (I think) that the clutch is pulled and the starter can start? Worked fine last autumn..

Shouldn't be any problem, the clutch switch provide power to the starter button
....now you get that via the "brake light switch" instead.

Allright, thanks Inge (been in forum like 2 months and must have thanked you a dozen times so far...). Just waiting for the snow to get the h**l out of here then. How is it in Norway?

Ah it's delightful here in Oz the trees are just starting to colour up and the winter will be a few heavy frosts followed by wonderful sunny days at about 15 degc. Don't you wish you were here it's the best country on the planet, weel I reckon it is.

Was that an invitation?

Some said that there are lots and lots of dangerous animals and stuff like that down there and otherwise mainly desert. So I dont think I'd want to live there full time.

Actually I could see myself spending like from october to march in Australia... Or anywhere warm. I do somehow like the "four seasons" we have, but the winter is too long and too dark.

Certainly is an invitation and I could probably even arrange a bike for you.
As for the dangerous animals I don't even know of anybody who has been bitten by a snake and one by a spider and I live in the bush on 2 Ha with bushland all around. Do not believe all the bull talked about the dangeroud animals.
Sure crocadiles are dangerous but I made a deal with them I wont swim in their water and they don't come into my house.
The best time to visit is in our winter and just go to the northern half of the country. the southern half is not that cold but is often wet where the north is usually sunny and dry from May to October.

Only missing the cash and free time then.

Well actually not the free time since from may 3rd I will be home with my son till the end of 2013. (My wife goes back to work.) So it's just the money..

[quote="Rick G"]Certainly is an invitation and I could probably even arrange a bike for you.
As for the dangerous animals I don't even know of anybody who has been bitten by a snake and one by a spider and I live in the bush on 2 Ha with bushland all around. Do not believe all the bull talked about the dangeroud animals.
Sure crocadiles are dangerous but I made a deal with them I wont swim in their water and they don't come into my house.
The best time to visit is in our winter and just go to the northern half of the country. the southern half is not that cold but is often wet where the north is usually sunny and dry from May to October.[/quote]

I was told the salties much prefer Yank tourists so no worries for your guest.

Well they will eat almost anything and if the yanks are the silly ones that go swining there then chomp chomp gobble gobble gulp.

After looking at this map: http://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Countries_driving_on_the_left_or_right.svg/800px-Countries_driving_on_the_left_or_right.svg.png I realized that I would not never ever be able to drive in Australia. Not with bike anyway and propably not a car too.

You drive on the wrong side of the street!! Other than that it would be nice to stop by. Maybe for a beer then. Expensive beer though since just flights are about 900 - 1400 euros (1150 - 1800 your $.)

I also noted that Namibia is the only nation that has previosly done driving right and then decided to do it wrong. Visited Namibia a couple years ago - wife's brother lives there. Nice place I think.

http://commons.wikimedia.org/wiki/File:Driving_standards_historic.png

Tenox wrote:After looking at this map: http://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Countries_driving_on_the_left_or_right.svg/800px-Countries_driving_on_the_left_or_right.svg.png I realized that I would not never ever be able to drive in Australia. Not with bike anyway and propably not a car too.

You drive on the wrong side of the street!! Other than that it would be nice to stop by. Maybe for a beer then. Expensive beer though since just flights are about 900 - 1400 euros (1150 - 1800 your $.)

I also noted that Namibia is the only nation that has previosly done driving right and then decided to do it wrong. Visited Namibia a couple years ago - wife's brother lives there. Nice place I think.

http://commons.wikimedia.org/wiki/File:Driving_standards_historic.png

Sweeden also in mid 60s I believe
Ireland also tried it. First they let the buses and trucks drive on the other side and then if it worked the cars and motorcycles the next week but it didnt work so thr plan was abandoned.

Rick G wrote:
Sweeden also in mid 60s I believe

Nope. Sweden went from wrong to right at september 3rd 1967. In traffic I mean - other than that they have allways been wrong in everything.

So does Sweeden drive on the right hand side of the road now which is the same as the rest of Europe.

Yes they do. Only Great Britain and Ireland drive left in europe.