BMW K bikes (Bricks)

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1Back to top Go down   Introduction Old54 Empty Introduction Old54 Mon Sep 20, 2021 11:14 am

Old54

Old54
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Introduction Old54 – I have been a member of this forum for a number of years and enjoy reading the posts. But due to inactivity on my account it was removed by the administrator. So I have re-joined the forum and will now share this part of my life with members as my introduction.
In July 1985 my younger brother purchased  a new BMW K100RS. Sadly a month later he passed away at the age of 24 years after suffering an asthma attack. The Bike had done 1911km. My grieving parents put the bike in shed and there it stayed for more than 30 years. In 2016 after my father passed I took possession of the BMW. It had just sat at the back of the shed with feed bags covering it amongst bales of Lucerne. Very dirty and the wiring loom eaten by rats, what would it be like? First thing was to pressure wash the bike and remove decades of dust.  What a surprise and credit to BMW the paint work and general appearance came up amazingly well. Even shinny with a bit of polish. The petrol was never drained, every part of the fuel system need attention. New hoses, fuel pump, pressure regulator, injectors cleaned and rebuilt etc. New oil through out, spark plugs, filters and battery the moment had come - time to see if the engine would run with just a few cranks of the starter motor  the engine sprang in to life. What Joy !  After several  local rides 20-50km the fuel consumption seemed excessive. I took the bike to a BMW bike shop for tune but still know difference?  Then I was talking to a fellow K100 owner who casually says have you checked the valve in the tank? No did not know there was one fitted I replied. Sure enough the spring and ball in the valve were rusted so it did not operate once these were replaced the bike ran like a dream.  A pair of Pirelli Sport Demon Tyres and we were on the road again. I have now put an additional 12000km on the K mostly on club runs around the local Shire on the Far South Coast of NSW Australia. I also own a BMW R1150R but the K rides and handle extremely well for a bike of its age and is fun to ride. In addition my wife likes the seating position on the K as a pillion so win – win.
I will try to contribute more to the forum in the future so I do not get removed by the administrator Very Happy  . It is nice reading about other people’s K experiences – especially during these times of lockdown.



Last edited by Old54 on Tue Sep 21, 2021 5:36 am; edited 1 time in total

    

2Back to top Go down   Introduction Old54 Empty Re: Introduction Old54 Mon Sep 20, 2021 12:00 pm

Arlina

Arlina
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Welcome back Old54 Smile

Yeah, the retour of the old tanks.....
Had one here, about the same story as you have, except bike was from a friend who didn't know I have some skills.
After he brought it away to get it back on the road, that was the only thing, didn't run well.
Told him to bring it here, cleaned the tank (wich was not well done before) and places a new retour.
He's got a rocket now Very Happy


__________________________________________________
Introduction Old54 Eu-log10  K1100RS/LT - R1200RT - R1100RS (RIP) - Cagiva SST 350 Ala Verde - K75LT project - K75 Schurgers - K75S
    

3Back to top Go down   Introduction Old54 Empty Re: Introduction Old54 Mon Sep 20, 2021 12:26 pm

Shep

Shep
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Old bikes, new life. Recycling, repurposing, the real way to save the world.
"On the road again" I think Willie Nelson sang this appropriate song about motorcycles!
A hello to Old54.
Shep


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Model        Production Date/Serial Number
K100RS      1984 July/ (F0040448)
K100RS      1986 Dec/ (H0142581)
    

4Back to top Go down   Introduction Old54 Empty Introduction Old54 Mon Sep 20, 2021 9:03 pm

Old54

Old54
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Introduction Old54 K10010 This me on the K - after being cleaned up from 30years in storage.



Last edited by Old54 on Mon Sep 20, 2021 9:13 pm; edited 1 time in total (Reason for editing : split text still learning how to post)

    

5Back to top Go down   Introduction Old54 Empty Re: Introduction Old54 Tue Sep 21, 2021 12:33 am

JR_K100RS

JR_K100RS
Life time member
Life time member
Great looking machine Old54 and a great story , thanks for posting the pic


__________________________________________________
Diamond Grey ( 617 ) 1987 K100RS ( European Delivery ) Original owner
    

6Back to top Go down   Introduction Old54 Empty Re: Introduction Old54 Wed Sep 22, 2021 9:06 pm

jjefferies

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@Old54 wrote:Introduction Old54 – Then I was talking to a fellow K100 owner who casually says have you checked the valve in the tank? No did not know there was one fitted I replied. Sure enough the spring and ball in the valve were rusted so it did not operate once these were replaced the bike ran like a dream.
Ok, tank? Gas Tank? Which valve are you speaking of. I am in the process of restoring a '86 K100 and would be interested in knowing which valve you are in reference to.

thanks.
J.Jefferies

    

7Back to top Go down   Introduction Old54 Empty Fuel tank Valve Thu Sep 23, 2021 8:44 pm

Old54

Old54
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Introduction Old54 Screen11
Hi - jjefferies  re: fuel tank valve - my understanding the valve in question is a non return valve in the tank. It is the line from the pressure regulator for the common rail fuel injectors. Inside it is a spring and ball bearing. On my tank it had rusted closed so the injectors were running at full pressure affect my fuel consumption - running very rich.   That is how it was explained to me. I thought it was just a connection and did not realise there were components in it thus the over sight and the cause of my problems.

    

8Back to top Go down   Introduction Old54 Empty Re: Introduction Old54 Thu Sep 23, 2021 10:23 pm

td5

td5
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Great story, glad your making use of it, welcome by the way from fortress WA
Mike


__________________________________________________
Introduction Old54 K_engi10
1988 / K100RS
2013 / R1200GS
2015 / K1300R
    

9Back to top Go down   Introduction Old54 Empty Re: Introduction Old54 Thu Sep 23, 2021 10:36 pm

jjefferies

jjefferies
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@Old54 wrote:Introduction Old54 Screen11
Hi - jjefferies  re: fuel tank valve - my understanding the valve in question is a non return valve in the tank. It is the line from the pressure regulator for the common rail fuel injectors. Inside it is a spring and ball bearing. On my tank it had rusted closed so the injectors were running at full pressure affect my fuel consumption - running very rich.   That is how it was explained to me. I thought it was just a connection and did not realise there were components in it thus the over sight and the cause of my problems.
Thanks for that. Exactly where is it located? My simplistic understanding is the fuel line runs from the pump in the tank, out the front of the tank, down to the fuel rail, then out the back of the fuel rail to the pressure regulator which is tucked behind the air delivery  and then back up into the tank. Just trying to locate this valve so I can check while I have the bike semi-apart.

    

10Back to top Go down   Introduction Old54 Empty Re: Introduction Old54 Thu Sep 23, 2021 11:13 pm

Old54

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Hi -  the  return valve on my bike is at the front / underneath  LHS of the tank.

    

11Back to top Go down   Introduction Old54 Empty Re: Introduction Old54 Fri Sep 24, 2021 12:54 am

jjefferies

jjefferies
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@Old54 wrote:Hi -  the  return valve on my bike is at the front / underneath  LHS of the tank.
Hey, thanks for that. Ran out to the garage. Found the valve and pulled it. Wire brushed off all the corrosion. Well there wasn't that much. But point of curiosity. You indicate there is a ball and a "SPRING". Mine has a ball, which rolls around quite freely, but no SPRING. Is this an error? Should I look into replacing it due to the missing spring?
Thanks again.

    

12Back to top Go down   Introduction Old54 Empty Re: Introduction Old54 Fri Sep 24, 2021 1:03 am

Old54

Old54
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I believe they left the spring out in later models

    

13Back to top Go down   Introduction Old54 Empty Re: Introduction Old54 Fri Sep 24, 2021 1:07 am

jjefferies

jjefferies
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@Old54 wrote:I believe they left the spring out in later models
Oh, '86 was a later model year!? Ok, Thanks.
Just re-install and keep on going.
J.

    

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