BMW K bikes (Bricks)

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1Back to top Go down   front brake handle release Empty front brake handle release Mon Aug 20, 2012 7:38 am

tom_k75c

tom_k75c
active member
active member
Hi there,

I just replaced the front brake master cylinder, which involved disassembly and reassembly of the throttle linkage in the grip area. My question is: should the throttle grip return to no-throttle position on it's own, or should you have to twist it to throttle down? Mine (my son's) does not return on it's own. I checked the action at the other end of the cable, and if you move the throttle at the end (engine end) it springs back on it's own.

Thanks,

Tom

    

2Back to top Go down   front brake handle release Empty Re: front brake handle release Mon Aug 20, 2012 7:43 am

Inge K.

Inge K.
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Welcome Tom!

Yes, the throttle grip should return by its own.

If it`s a model w/o bar end weights, it could be that the throttle assy is pushed to much inwards on the bars.

If you got bar end weights, it could be that the throttle assy is too close to the outer end.



Last edited by Inge K. on Mon Aug 20, 2012 7:53 am; edited 2 times in total (Reason for editing : Adding info.)


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Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

3Back to top Go down   front brake handle release Empty Re: front brake handle release Mon Aug 20, 2012 8:51 am

charlie99

charlie99
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tom , just to the right of the master cylinder there is a large phillips head screw , which undoes the chain-cam gear interface between the throttle cable-- chain-- and throttle grip , its a cap that removes to expose the linkages .

just make sure the slack on the geared teeth of the cam is good ...as they can be assembled a tooth or more out of synch with the chain bit .....

but you saw that already huh ?

good luck and welcome to the forum .


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%Ofront brake handle release Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

4Back to top Go down   front brake handle release Empty Re: front brake handle release Mon Aug 20, 2012 9:21 am

Inge K.

Inge K.
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charlie99 wrote:just make sure the slack on the geared teeth of the cam is good ...as they can be assembled a tooth or more out of synch with the chain bit ......

front brake handle release Lenkem10


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

5Back to top Go down   front brake handle release Empty Re: front brake handle release Mon Aug 20, 2012 9:25 am

charlie99

charlie99
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good post inge ....was looking for the pic ...cheers front brake handle release 112350


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%Ofront brake handle release Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

6Back to top Go down   front brake handle release Empty Re: front brake handle release Tue Aug 21, 2012 7:46 am

Inge K.

Inge K.
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charlie99 wrote:was looking for the pic
And, now you found it......


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

7Back to top Go down   front brake handle release Empty Re: front brake handle release Tue Aug 21, 2012 7:49 am

charlie99

charlie99
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and saved it ...

thankyou "oh great one" ...front brake handle release 112350


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%Ofront brake handle release Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

8Back to top Go down   front brake handle release Empty Re: front brake handle release Tue Aug 21, 2012 8:01 am

charlie99

charlie99
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just had a thought tom .....there is an option on some models that holds the throttle grip open ....or more precisely adds restriction for the throttle to wind back to origin .....

its a plastic ended bolt that screws in from the bottom of the handlebar assembly -switch area ...that applies presure to the circumference of the throttle grip mechanism in or around the under side of that cam chain linkage deal thing .

just be aware that such a thing exists (made for touring type applications to releive wrist strain ) i havent seen one but im told that its a knurled thumbscrew type thingy .

you might check under the bars to see if there is something there ...(normal right hand thread i expect )


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%Ofront brake handle release Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

9Back to top Go down   front brake handle release Empty Re: front brake handle release Tue Aug 21, 2012 8:13 am

Inge K.

Inge K.
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Good thought, Charlie.


front brake handle release 61183110


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

10Back to top Go down   front brake handle release Empty Re: front brake handle release Tue Aug 21, 2012 10:22 pm

col

col
Life time member
Life time member
on my bike the previous owner had at some stage lubricated between throttle and handlebars which overtime had turned to a sticky concoction which gave me the same problem took apart cleaned up works fine now


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1991 k100lt "the enterprise"
    

11Back to top Go down   front brake handle release Empty re: front brake handle release Wed Aug 22, 2012 2:27 am

tom_k75c

tom_k75c
active member
active member
First, sorry I misnamed this thread. It should have said something like "throttle grip release". Anyway, problem solved. It was the throttle stop screw on the bottom of the grip. I loosened it a bit, and the handle snapped back. What a great forum! Thank you all for being so helpful. -Tom

    

12Back to top Go down   front brake handle release Empty Re: front brake handle release Wed Aug 22, 2012 2:44 am

charlie99

charlie99
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yay !!!!


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%Ofront brake handle release Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

13Back to top Go down   front brake handle release Empty Re: front brake handle release Wed Aug 22, 2012 2:56 am

Inge K.

Inge K.
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Charlie nailed it, again front brake handle release 112350 front brake handle release 112350


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

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