BMW K bikes (Bricks)

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1Back to top Go down    Mystery tube on Thu Mar 31, 2016 5:34 pm

Bikesmith

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Silver member
Hey guys,
What is this little tube coming out of the transmission of my 85 K100rs right under the battery shelf?


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Jon
Mechanically competent, electrically idiotic
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1985 BMW K100rs
1940 Royal Enfield WD/CO
1968 Honda CL125
    

2Back to top Go down    Re: Mystery tube on Thu Mar 31, 2016 5:42 pm

Inge K.

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VIP
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Battery breather.


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

3Back to top Go down    Re: Mystery tube on Thu Mar 31, 2016 5:54 pm

Bikesmith

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So, where should that loose end be plugged into? Into the battery? My battery doesn't have a hole for it. Should I leave it loose?


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Jon
Mechanically competent, electrically idiotic
------------------------------------
1985 BMW K100rs
1940 Royal Enfield WD/CO
1968 Honda CL125
    

4Back to top Go down    Re: Mystery tube on Thu Mar 31, 2016 6:07 pm

Chocolate

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A modern AGM or Gel Batterie will not need this tube.

A old acid Battery will net this tube, when it heats up it will evaporate water and a bid acid.
If the tube isn't connected or plugged with dirt, the acid will drop on the frame and destroy the frame coat.
I had that, looks ugly!

Cheers


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Only a few activities make me experience my senses in a way motorcycle riding does, it is like swimming in the nude in a river.
K75 BA/1992 ABS, K75 BA/1991 noABS, Ducati, Mobylette M1/1973
Pictures:Me my bike and I
    

5Back to top Go down    Re: Mystery tube on Thu Mar 31, 2016 9:11 pm

blaKey

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Onya Choco, in some cases photos are the only way to go!


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Neil
K100RS 1986 RED!
K100RT 1987 (now nekkid with red bits)

Remember Rule No. 6
    

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