BMW K bikes (Bricks)

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timz10000

timz10000
Silver member
Silver member
I dropped my 85 K100 over putting it on the center stand on an unexpectedly slick surface  Sad 

Any tips on how to get this looking smooth again?  


Best way to get scratches off engine case? Img_2010 Sad


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1985 K100
    

nobbylon

nobbylon
Silver member
Silver member
I’ve tried to do the same on the cam cover and due to BM’s cast finish all you end up with is a bright spot which looks worse! If it bothers you that much a second hand cover can be had cheaply. Personally I would flatten with emery paper and paint black/crackle black.


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R1100GS Feb 1995
K100RS July 1989
R90s June 1975
R75/6 Feb 1976
F650GD May 2001
    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
@nobbylon wrote:I’ve tried to do the same on the cam cover and due to BM’s cast finish all you end up with is a bright spot which looks worse! If it bothers you that much a second hand cover can be had cheaply. Personally I would flatten with emery paper and paint black/crackle black.
+1.  Flat black or crackle will minimize the visible difference in surface finish.


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Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

MartinW

MartinW
Life time member
Life time member
If you don't want to paint it, file and sand out the marks and then take it to a good media blaster. A competent one should be able to get satisfactory results. If you have access to a compressor and blaster you could do it yourself but you would need to research the type of media needed. These days there are a multitude of options.
Regards Martin.



Last edited by MartinW on Wed Sep 26, 2018 10:50 am; edited 2 times in total


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K75s Hybrid
    

Dai

Dai
Life time member
Life time member
Martin's idea will give the best OEM results by far. It'll look a bit bright for a while until the corrosion takes hold again.


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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)
    

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