BMW K bikes (Bricks)

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duck

duck
Life time member
Life time member
TJH has a cafe with Busa forks and aftermarket controls. When he was at my place yesterday he mentioned that the bike doesn't start very well.  One obvious reason is that his 85 K100 cafe doesn't have a "choke."

Wondering if any of you cafe builders have found a way to implement a choke with non-BMW controls.


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Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

MartinW

MartinW
Life time member
Life time member
Just a thought, Duck the fast idle control doesn't have to be on the handle bars. You should be able to fit a universal choke control anywhere. You could also use the OEM throttle lock or an aftermarket one to increase the revs for starting.
Regards Martin.


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K75s Hybrid
    

Dai

Dai
Life time member
Life time member
Use l/h switches with a built-in choke lever. That's what I have.


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'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

chris846

chris846
Life time member
Life time member
Well the madass just plain doesn't have one, throttles are balanced, ignition is advanced, plugs are good - it starts and ticks over fine. True, I don't ride in sub zero, or even roundabout zero, but I'm also a believer in getting on and riding rather than letting it 'warm up' on a fast idle.
The other thing you could do is install a switch to stop the alternator charging whilst it warms up, it cuts the load on the engine and a switch is much easier to figure out than a mechanism for the fast idle.


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The Longest Lunch
    

lechicho55

lechicho55
active member
active member
I was thinking of trying to get a manual choke conversion right at the throttle body's or whatever it is called.  Right at the choke lifting mechanism.  I now they make one for an r80, but doubtful it would work for k as I was just looking at it.  Also worst case scenario I was thinking of totally Mcguyvering it and just cut the choke cable short and use a key chain round thingy and then solder the cable back to its self and bob's your uncle choke pull right at the lifter.  I works out in my head anyway.

    

92KK 84WW Olaf

92KK 84WW Olaf
Life time member
Life time member
Fire it up and ride off. That avoids need for choke. The only time mine ever need choke is if I want to fire it up and let it idle. But I never do that. Otherwise it starts up and I ride off without any problem and just ride gently for the first few miles......


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1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 98,780 miles
1983 K100RS 0011171 Fricka 29,495 miles Damn K Pox Its a Bat outta Hell No 32,600 miles
    

Gauntlett

Gauntlett
active member
active member
I agree with Chris, the whole mechanism is missing from Lucky3 and I have no problems starting, give it a bit of throttle and away it goes.

    

92KK 84WW Olaf

92KK 84WW Olaf
Life time member
Life time member
I do ride in winter and sub zero and never an issue. Yes, it wont tick over on a frosty morning from cold without choke but if I am in gear ready to go and fire up and go there is no issue.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 98,780 miles
1983 K100RS 0011171 Fricka 29,495 miles Damn K Pox Its a Bat outta Hell No 32,600 miles
    

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