BMW K bikes (Bricks)

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1Back to top Go down   New K100 Owner Empty New K100 Owner Wed May 05, 2021 6:50 am

Oldschool_Ian

Oldschool_Ian
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Hello

Decided to join here as it seems like a valuable resource for technical information.

I'm Located in Northern Ireland.


Recently got hold of a 1990 K100, originally an LT but converted to a cafe racer.

I'm sure there are those who won't like me because its been turned into a cafe racer, but the way I see it I am putting another K100 on the road that hasn't even had an MOT since 2014 and had a myriad of problems needing sorting and to be given some general love and care.



Here is how she stands:

New K100 Owner IMG_2043




New K100 Owner IMG_2052




New K100 Owner IMG_2039

    

2Back to top Go down   New K100 Owner Empty Re: New K100 Owner Wed May 05, 2021 8:49 am

moriarti

moriarti
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Hi Ian,Your right mate a K is a K and one more is a bonus We all share the same passion for this bike what we do personally is what makes us individuals.So enjoy 
your bike Ride safe and when I'm passing by, Put the Kettle on Very Happy Very Happy


__________________________________________________
1984 k100 rs red/black VIN  0004449
    

3Back to top Go down   New K100 Owner Empty Re: New K100 Owner Wed May 05, 2021 8:36 pm

caveman

caveman
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Platinum member
It's all about joy and if it's what brings you joy, knock yourself out. Some folks have made some fantastic "cafe" or "custom"  rigs but it seems more never get it done. Wish you the best with it and maybe some of us can help you "get r done"

    

4Back to top Go down   New K100 Owner Empty Re: New K100 Owner Thu May 06, 2021 4:16 am

Arlina

Arlina
Moderator
Moderator
Welcome Ian Smile


__________________________________________________
New K100 Owner Eu-log10  K1100RS/LT - R1200RT - R1100RS (RIP) - Cagiva SST 350 Ala Verde - K75LT project - K75 Schurgers - K75S
    

5Back to top Go down   New K100 Owner Empty Re: New K100 Owner Thu May 06, 2021 6:05 am

Oldschool_Ian

Oldschool_Ian
active member
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@moriarti wrote:Hi Ian,Your right mate a K is a K and one more is a bonus We all share the same passion for this bike what we do personally is what makes us individuals.So enjoy 
your bike Ride safe and when I'm passing by, Put the Kettle on Very Happy Very Happy
Thanks. It actually suits me better as a cafe racer than as a luxury tourer as I only tend to use bikes for short trips and around the coast roads so this why I get to enjoy a K bike in a way that suits me. And its still got most of the features that make it a K.



@caveman wrote:It's all about joy and if it's what brings you joy, knock yourself out. Some folks have made some fantastic "cafe" or "custom"  rigs but it seems more never get it done. Wish you the best with it and maybe some of us can help you "get r done"
Seems accurate, I bought this already part converted, but done badly and have just been finishing it off myself, you wouldn't believe how many things were wrong with it. Some people shouldn't be allowed near anything mechanical.  There has been some challenges but I don't give up easy, I'm determined to make this a great bike and I'm sure the knowledge on here will be helpful.




@Arlina wrote:Welcome Ian Smile
Thanks

    

6Back to top Go down   New K100 Owner Empty Re: New K100 Owner Tue Aug 24, 2021 4:06 pm

Oldschool_Ian

Oldschool_Ian
active member
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After a lot of work I managed to get this thing its first MOT since 2014 and get it on the road and have been loving it since.


New K100 Owner IMG_5379




Some questions.


Quite a bit of vibration, how smooth are k100s generally?


Throttle is a bit heavy and the the transition on/off throttle in corners can be jumpy. I plan to change the cable, but how heavy are these as standard and are they a bit jumpy normally?


Feels better 65mph and above than it does 40-50mph, I believe all K's are happier at these speeds?


New K100 Owner IMG_5272





New K100 Owner IMG_5390






New K100 Owner IMG_5572






New K100 Owner IMG_5559






New K100 Owner IMG_E5560

    

7Back to top Go down   New K100 Owner Empty Re: New K100 Owner Tue Aug 24, 2021 4:46 pm

Arlina

Arlina
Moderator
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K100 should have low vibrition, sync the trottlebodies.
Besides, normally the handlebar is mounted in rubbers, and weights on the end, you don't have it, will feel more vibration.

Throttle should go smooth, check the cable routing.

K's like to rev, try to get above 5000RPM Very Happy


__________________________________________________
New K100 Owner Eu-log10  K1100RS/LT - R1200RT - R1100RS (RIP) - Cagiva SST 350 Ala Verde - K75LT project - K75 Schurgers - K75S
    

8Back to top Go down   New K100 Owner Empty Re: New K100 Owner Wed Aug 25, 2021 5:08 am

poddy

poddy
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Silver member
Welcome in. Don't worry about the cafe racer all of us have our pacific tastes. I like my K100RS because it is so original. Although I own a 91 Kawaka Z750 (Zepyhr) which I can not get the parts for so I am forced in to giving it the cafe racer theme so I can get it back on the road.
May the road rise to meet you & the sun stay on your back. Poddy

    

9Back to top Go down   New K100 Owner Empty Re: New K100 Owner Wed Aug 25, 2021 8:05 am

92KK 84WW Olaf

avatar
Life time member
Life time member


__________________________________________________
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 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 40,490 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 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
    

10Back to top Go down   New K100 Owner Empty Re: New K100 Owner Wed Aug 25, 2021 11:48 am

bad boy

bad boy
Silver member
Silver member
Hi Ian

and New K100 Owner 177912 to the show

congrats on passing the MOT


__________________________________________________
Cheerz, David

New K100 Owner 9438-010

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

11Back to top Go down   New K100 Owner Empty Re: New K100 Owner Sat Aug 28, 2021 9:32 am

Oldschool_Ian

Oldschool_Ian
active member
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@Arlina wrote:K100 should have low vibrition, sync the trottlebodies.
Besides, normally the handlebar is mounted in rubbers, and weights on the end, you don't have it, will feel more vibration.

Throttle should go smooth, check the cable routing.

K's like to rev, try to get above 5000RPM Very Happy
Thanks,

Throttle Bodies are due an overhaul in winter, so I'll get them set well upon reassembly. 

I could easily add weights in the end of the bars if it helps.



Hopefully a new cable and proper routing should help, another winter job.



It does seems happy at higher revs, the engine is much smoother the closer to 5k I get and really smooth after that, but 5000 seems very high to sit at, for an engine which only revs to 8500.







@poddy wrote:Welcome in. Don't worry about the cafe racer all of us have our pacific tastes. I like my K100RS because it is so original. Although I own a 91 Kawaka Z750 (Zepyhr) which I can not get the parts for so I am forced in to giving it the cafe racer theme so I can get it back on the road.
May the road rise to meet you & the sun stay on your back. Poddy



Thanks

I can see why if you got a good condition fully original bike it would be nice to keep it that way

With my projects (cars or bikes) I tend not to worry about originality as long as I keep the character they are meant to have. The way I see it the manufacturers gave me a great base to use and all I am doing is altering it suit how I want to use it and how I like it it to look and then I end up with something that reflects my personality and creativeness. 







@bad boy wrote:Hi Ian

and New K100 Owner 177912 to the show

congrats on passing the MOT
Thanks


Was beneficial having to do so much work to get the bikes right as I learnt a lot from doing it. And then of course the reward is getting to ride it after the MOT.

    

12Back to top Go down   New K100 Owner Empty Re: New K100 Owner Sat Aug 28, 2021 1:59 pm

moriarti

moriarti
Life time member
Life time member
HI Ian, Ks are happy at low revs in town traffic but really come alive above 6k when conditions allow i ride in the 6/7k this is when they come alive. Don't worry about over reving you can run 8/8300 no problem ,exept speed limits, Very Happy Very Happy ITS A K THING


__________________________________________________
1984 k100 rs red/black VIN  0004449
    

13Back to top Go down   New K100 Owner Empty Re: New K100 Owner Sun Aug 29, 2021 12:48 pm

Oldschool_Ian

Oldschool_Ian
active member
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Yes, I have absolutely noticed it very happy to rev, and I rev it out quite often




Another thing I have noticed is that the engine braking is quite strong, Is this normal?

    

14Back to top Go down   New K100 Owner Empty Re: New K100 Owner Sun Aug 29, 2021 10:35 pm

Dan Pete

Dan Pete
Silver member
Silver member
I’ve never ridden an air head, but I heard the discription that they run as it they had a 600 lb flywheel, 3 feet diameter. Where as a k runs as if it has a flywheel the size and weight of a silver dollar!
Back in my chopper/bobber days, I’ve had bikes that did not stop as well with all the brakes available, as a k does just by dumping the throttle

    

15Back to top Go down   New K100 Owner Empty Re: New K100 Owner Mon Aug 30, 2021 12:07 am

RS Rider

RS Rider
Silver member
Silver member
@Oldschool_Ian wrote:



Another thing I have noticed is that the engine braking is quite strong, Is this normal?
Yes. The Throttle Position Sensor tells the ECU when the throttle is closed. If the ECU determines that the engine RPM is above 2000, the ECU cuts out the fuel injectors. I find it very effective when going fast. You almost need the brake light circuit to be activated, much like the way transmission retarders on large vehicles activate the brake lights.

    

16Back to top Go down   New K100 Owner Empty Re: New K100 Owner Mon Aug 30, 2021 5:31 am

poddy

poddy
Silver member
Silver member
Yep  I got to back your comments there Ian. I've had my fair share of custom bikes. I also believe where all individuals with our own personal tastes. 
Having owned 38 different motorcycles I cannot discriminate. But having owned four Harleys I do find stirring shit can be fun & good for a laugh. Thanks Poddy

    

17Back to top Go down   New K100 Owner Empty Re: New K100 Owner Mon Aug 30, 2021 9:54 am

92KK 84WW Olaf

avatar
Life time member
Life time member
Good to see you are enjoying it. On the link I posed some of us are planning a get together on weekend of 24-26 September. Most likley Airbnb so love if you can join us. 

Good to see you enjoying the K.....and curious if you encountered K Pox.


__________________________________________________
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 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 40,490 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 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
    

18Back to top Go down   New K100 Owner Empty Re: New K100 Owner Tue Aug 31, 2021 4:59 pm

Oldschool_Ian

Oldschool_Ian
active member
active member
@Dan Pete wrote:I’ve never ridden an air head, but I heard the discription that they run as it they had a 600 lb flywheel, 3 feet diameter. Where as a k runs as if it has a flywheel the size and weight of a silver dollar!
Back in my chopper/bobber days, I’ve had bikes that did not stop as well with all the brakes available, as a k does just by dumping the throttle
Good to know it is normal and not an issue with my bike. I certainly rarely need to use the brakes to slow down in traffic.







@RS Rider wrote:
@Oldschool_Ian wrote:



Another thing I have noticed is that the engine braking is quite strong, Is this normal?
Yes. The Throttle Position Sensor tells the ECU when the throttle is closed. If the ECU determines that the engine RPM is above 2000, the ECU cuts out the fuel injectors. I find it very effective when going fast. You almost need the brake light circuit to be activated, much like the way transmission retarders on large vehicles activate the brake lights.



Certainly in cars its almost universal that with a closed throttle the injectors are cut completely. 


Yet there is always a massive variance in engine breaking effect. I guess it comes down to compression ratio, drag from the engine and weight of the flywheel.








@poddy wrote:Yep  I got to back your comments there Ian. I've had my fair share of custom bikes. I also believe where all individuals with our own personal tastes. 
Having owned 38 different motorcycles I cannot discriminate. But having owned four Harleys I do find stirring shit can be fun & good for a laugh. Thanks Poddy

Absolutely, everyone has their own tastes and ideas, but not everyone respects this.

Thats a lot of bikes, the K100 is only my second.






92KK 84WW OlafGood to see you are enjoying it. On the link I posed some of us are planning a get together on weekend of 24-26 September. Most likley Airbnb so love if you can join us. 

Good to see you enjoying the K.....and curious if you encountered K Pox.

Sorry, totally missed replying to you.  That sounds good but unfortunately I am now back at work and I work away from home 7-8 months of the year. Currently in Dubai. Got the pay for the cars and the bike somehow.

If I was home I'd most likely join you.



Sorry, but you will have to explain K pox to me.

    

19Back to top Go down   New K100 Owner Empty Re: New K100 Owner Wed Sep 01, 2021 2:08 am

tinyspuds

tinyspuds
Life time member
Life time member
New K100 Owner 177912


__________________________________________________
1985 BMW K100RT + Hedingham HUB and LL’s. VIN 0028106. (Not blind to the irony of an April 1 production date).
1986 K100RS in boxes. VIN 0141918.
1954 Royal Enfield 350 Bullet. Original.
    

20Back to top Go down   New K100 Owner Empty Re: New K100 Owner Wed Sep 01, 2021 9:29 am

Laitch

Laitch
Life time member
Life time member
@Oldschool_Ian wrote:Sorry, but you will have to explain K pox to me.
Here's the theme song, anyway. Smile


__________________________________________________
1995 K75 81,000 miles
New K100 Owner Usa-lo10
    

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