BMW K bikes (Bricks)


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1Back to top Go down   New member introduction.  Empty New member introduction. Fri Mar 17, 2023 6:22 am

jtoj53

jtoj53
active member
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Hello. I’m Tom. Been an intermittent motorcyclist over the years starting with a pre-unit Triumph in the early 1970s. Last BMW I owned in early 2000s was a 1972 R75/5. Current favorite is a 2007 Yamaha 1300 with a sidecar. 

Although I live in Florida we recently purchased a home in North Carolina. Was surprised to find a couple of K100s in the basement. Bike 1 is a late 1984 production K100RS with around 22K miles and was last tagged in 1999. Bike 2 is 1985 production K100RT with around 25k miles and was last tagged in 2000. Previous owner of home said they had belonged to the people he bought the house from and they just left them. He said he was doing the same.

While they are pretty dusty, they appear to be original and complete. Once I found the forum I felt like it would be one of the best ways for me to learn about the bikes. 

Thanks for adding me.

    

2Back to top Go down   New member introduction.  Empty Re: New member introduction. Fri Mar 17, 2023 8:36 am

bad boy

bad boy
Life time member
Life time member
hello Tom
New member introduction.  177912 
good luck and lots of joy with your 'new' bricks New member introduction.  723598


__________________________________________________
Cheerz, David

New member introduction.  9438-010

____________________________________________________________________________
1997 Peraves Super Ecomobile: a Kevlar reinforced monocoque with outrigger wheels, seating two.
K75 fork, K100 monolever, headlight, indicators, K1100RS gearbox, K1200RS 589 instrument cluster, engine, rear wheel
    

3Back to top Go down   New member introduction.  Empty Re: New member introduction. Fri Mar 17, 2023 8:41 am

Pete Riley

Pete Riley
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Lucky or what! New member introduction.  212902

    

4Back to top Go down   New member introduction.  Empty Re: New member introduction. Fri Mar 17, 2023 9:20 am

fishboy316

fishboy316
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Life time member
Welcome! You will love the rs! They handle so nice. Sure would like to "find" a couple of these hiding in my basement! 

Bill

    

5Back to top Go down   New member introduction.  Empty Re: New member introduction. Fri Mar 17, 2023 10:24 am

Point-Seven-five

Point-Seven-five
Life time member
Life time member
Dayam!  Some people have all the luck!!!

Welcome!  Those bikes are almost broken in.


__________________________________________________
Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

6Back to top Go down   New member introduction.  Empty Re: New member introduction. Fri Mar 17, 2023 11:38 am

Dai

Dai
Life time member
Life time member
New member introduction.  177912 That's luck or what!


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

7Back to top Go down   New member introduction.  Empty Re: New member introduction. Fri Mar 17, 2023 1:23 pm

DrNocky

DrNocky
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I for one would love to see some photos of your lucky find. Please....pretty please?

    

8Back to top Go down   New member introduction.  Empty Pictures? Fri Mar 17, 2023 2:07 pm

jtoj53

jtoj53
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I cannot find a way to post picture as in the "post a reply" window it says (NO PICTURES). Please advise if I am missing something obvious. It would not be the first time.

    

9Back to top Go down   New member introduction.  Empty Re: New member introduction. Fri Mar 17, 2023 4:33 pm

DrNocky

DrNocky
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active member
When you hit ‘Reply’ you should see a camera symbol. Click on that and choose a source from which to load your photos. Hope this helps. 😊

    

10Back to top Go down   New member introduction.  Empty Re: New member introduction. Fri Mar 17, 2023 5:59 pm

Dai

Dai
Life time member
Life time member
IIRC you need a minimum of five posts first.


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

11Back to top Go down   New member introduction.  Empty Re: New member introduction. Fri Mar 17, 2023 6:00 pm

jtoj53

jtoj53
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New member introduction.  6ecf7110
New member introduction.  379e9810

    

12Back to top Go down   New member introduction.  Empty Re: New member introduction. Fri Mar 17, 2023 6:03 pm

jtoj53

jtoj53
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In the picture of the RS I included a picture of a sticker from right side frame. Can anyone tell me what it means?

    

13Back to top Go down   New member introduction.  Empty Re: New member introduction. Fri Mar 17, 2023 6:43 pm

DrNocky

DrNocky
active member
active member
I can see two pictures of the LT but no RS pics yet. Change all the fluids, oil , gear oil, final drive oil and petrol. Put in a new battery and press start. You never know your luck. There’s loads of advice on here and people willing to help. I find if I search the topic in Google followed by site:k100-forum.com, it will deliver really accurate and useful threads e.g. ‘crank no start site:k100-forum.com’ and bingo! All the threads on crank no start from this forum will be there to peruse. Also Chris Harris the BMW tech on YouTube and Patreon is a mine of information. Can’t wait to see more pics. You’ve lucked out, my friend. 😁

    

14Back to top Go down   New member introduction.  Empty Re: New member introduction. Fri Mar 17, 2023 10:58 pm

92KK 84WW Olaf

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I bought a 1983 K100RS in 2018 with 29,000 miles. It spent 17 years stood in a nice heated boat shed. I have since brought it to 56,200 miles.

All good.

But you will face the same issues. I have been in Ks for a while so I knew what to expect and as the saying goes, it did not disappoint. The purchase price was right and I had a budget. 

So I am happy to share the list:

First do NOT try starting them. You will bugger up your fuel system.

Fuel System:
Check the gas tank. If it had old gas left in it, you need to clean it out. Budget for replacing fuel pump, vibration damper, holder, filter, fuel lines inside the tank. IIn the short term you might get by keeping the pump and repalcing everything else.

Outside fuel tank:
Replace the outside tank fuel lines. Honda ones are the same 8/13mm.

Injectors:
These are likely to need cleaning but if you do all the other stuff first you reduce risk of problems.

Electrical:
Check and clean connections, especially the ignition system. Earths in particular. Also the big plug connection into the unit under the seatFuel injection control unit [FICU] and the igntion control unit under the front of the tank [ICU]
Check all the fuses. 
Check if you have neutral light. If you dont, clutch lever has a switch that will allow the bike to start, just pull the clutch.

At this point you might consider trying to fire it up.

Vacuum:
Replace the vacuum pipe from the throttle body cylinder 4 back to the fuel pressure regulator. The throttle bodies have vacuum caps, should be replaced. If any of the bikes have 2 fuel lights on the clocks, you will find a vacuum pipe on no 1 cylinder. Just put a cap on instead.
Crankcase vent referred to a Z pipe will be cracked, replace it.

Brakes:
These are going to need serious work.
Replace brake lines.
Probably need rebuild kits for calipers and master cylinders.
Brake pads most likely toast.

Cooling system:
Fan is a weak point, check it is not seized or stiff.
Pipe from radiator to expansion tank is likely to fail so replace it.
Cooling system hoses generally seem to survive.
Check under the water pump for coolant or oil leaks.

Obviously fluid and coolant change is required.

Check your air box in case mice have been in it.

Tyres will be well out of date. 

I had to do all that stuff on mine, but I had a lot of parts and it was a diy job.

Given the low miles things like brake discs should be ok and engines mechanically should be spot on.

A known K fault is sprag clutch [starter clutch] spinning and not engaging. Oil change for a good clenaing oil will help this.

I know my RS when I add what I paid for it to what I added since, I would be about covered.

Check out where to go for parts, I buy most on line but places like www.kpartsholland.com will ship to you. There is a great range of generic, oem and non oem parts out there. As an example the fuel pump in a K was used in most European cars of the same ra, VW, Fiat, Lancia. Citroen, Peugeot and more. I pay about €45 for them. You can get a full set of injectors EV14 from kpartsholland. I think about €150 and they come with O rings.

Dont be afraid to ask questions or for parts. Most of us have lots of spare parts that we swap or sell on.

When you get a chance, pull out their VIN numbers and put them in your signature. There are significant changes and upgrades and this helps others put you in the right direction.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

15Back to top Go down   New member introduction.  Empty Re: New member introduction. Sat Mar 18, 2023 12:09 am

jtoj53

jtoj53
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Thanks so much for the great information. I’ll retry RS pics. New member introduction.  3bac5910
New member introduction.  F9191410
New member introduction.  74c33c10

    

16Back to top Go down   New member introduction.  Empty Re: New member introduction. Sat Mar 18, 2023 2:01 am

RS Rider

RS Rider
Gold member
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jtoj53 wrote:Thanks so much for the great information. I’ll retry RS pics. New member introduction.  3bac5910
New member introduction.  F9191410
New member introduction.  74c33c10




I assume that sticker you were asking about is that last image. That is the European homologation sticker. Homologation is the process of approval and conformity through an official process when something needs to meet regulations, in this case, a motorcycle. That's sort of a simplistic explanation. You can look up the various countries by code. E1, for instance, is Germany. I would think that some of the other numbers have something to do with reference to documentation and so forth. Someone here will certainly know more than I.

    

17Back to top Go down   New member introduction.  Empty Re: New member introduction. Sat Mar 18, 2023 6:20 am

Arlina

Arlina
Moderator
Moderator
Welcome Tom Smile

Throw all your questions in the right section, and in no time you'll be riding and addicted Very Happy


__________________________________________________
New member introduction.  Eu-log10  K1100RS/LT - R1200RT - R1100RS - Cagiva SST 350 Ala Verde - K75LT project - K75 Schurgers - K75S - K1100RS - K75RT - K75C
    

18Back to top Go down   New member introduction.  Empty Thanks Sat Mar 18, 2023 1:56 pm

jtoj53

jtoj53
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Thanks Arlina. Will do. I just got carried away and forgot I was in the "howdy" section of forum.

    

19Back to top Go down   New member introduction.  Empty Re: New member introduction. Sat Mar 18, 2023 10:04 pm

92KK 84WW Olaf

avatar
Life time member
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Identical to mine, same colour. Mine had 29,000 miles so its really very close.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

20Back to top Go down   New member introduction.  Empty Re: New member introduction. Tue Mar 21, 2023 7:30 am

Bernie_K100

Bernie_K100
Life time member
Life time member
Hi Tom,

New member introduction.  177912 to this forum!


Bernie

    

21Back to top Go down   New member introduction.  Empty Welcome Fri Apr 07, 2023 2:25 pm

Paddy1

Paddy1
Silver member
Silver member
Hello! 
You will enjoy this forum and the wealth of information available just for asking!


__________________________________________________
Riding Beemers since 1988
1986 K100RT, 1985 K100RS, 
2001 K1200LT, 2004 R1100S, 
2004 R1150, 1980 R65, 
2014 Zero FX, 2021 Zero SR/F
    

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