BMW K bikes (Bricks)

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1Back to top Go down   Just bought a non running K75C. Empty Just bought a non running K75C. Tue Nov 20, 2018 5:29 pm

kenrams

kenrams
Silver member
Silver member
Hi Guys

Just purchased a winter project - a non running 44,000 mile 1987 K75C that has had quite a bit of work done to it. The owner parked it up in the garage many years ago and his son has spent the last year working on it. His mom eventually got fed up with it taking up space in the garage and I think the boy also lost interest in the project. 

I have started working my way through the bike and came across a pipe coming out of the crankcase just below the radiator and above the timing cover. This pipe then inserts onto another thicker pipe which is terminated with a hex nut i.e. it doesn't connect anywhere.  I can't find any info on the function of the pipe and am curious about it. My 85 K100 does not have one.

Here is a picture. Appreciate any info.

Just bought a non running K75C. K75_pi10


__________________________________________________
1981 R100 cafe- 121,000 miles
1985 K100 cafe - 55,000 miles
1987 K75C - 44,000 miles
    

2Back to top Go down   Just bought a non running K75C. Empty Re: Just bought a non running K75C. Tue Nov 20, 2018 5:53 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
That was some sort of California crankcase breather that was found to be not needed.  If you like, you can cut it off close to the block and plug it there.


__________________________________________________
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
    

3Back to top Go down   Just bought a non running K75C. Empty Re: Just bought a non running K75C. Tue Nov 20, 2018 9:34 pm

92KK 84WW Olaf

avatar
Life time member
Life time member
Very nice photo...

So, while you have that stuff out, replace the fuel lines as you can get at them easily. They will be hardened and break down causing leaks and other issues.


__________________________________________________
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 37,190 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
    

4Back to top Go down   Just bought a non running K75C. Empty Re: Just bought a non running K75C. Wed Nov 21, 2018 11:53 am

kenrams

kenrams
Silver member
Silver member
Thanks guys. I've replaced all the pipes and noticed a slight split on the crankcase breather tube that must be the cause for all the oily crud under the air cleaner housing.

Just bought a non running K75C. S_tube11

I also had a lot of difficulties removing the top part of the air cleaner housing. It turns out that the pipe was stuck/melted onto the housing. Also, it had a 1-inch split! I'll add that to my next order as well.

Think I will have a much better running bike come next Spring ( I am in Michigan and winter is already here).   

Cheers


__________________________________________________
1981 R100 cafe- 121,000 miles
1985 K100 cafe - 55,000 miles
1987 K75C - 44,000 miles
    

5Back to top Go down   Just bought a non running K75C. Empty Re: Just bought a non running K75C. Wed Nov 21, 2018 12:52 pm

duck

duck
Life time member
Life time member
Here's a link where you can find the BMW shop manual:
New to K bikes - http://bit.ly/new2kbikes


__________________________________________________
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
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

6Back to top Go down   Just bought a non running K75C. Empty Re: Just bought a non running K75C. Wed Nov 21, 2018 1:22 pm

kenrams

kenrams
Silver member
Silver member
Thanks Duck, that is a such great resource. I have a Clymer Manual, but it can only cover so much ( and showed no details of the "californian breather tube"). 

The info that is available here and on the web is fantastic when you are stuck working on the bike in the garage at 2am and need some help !

Cheers


__________________________________________________
1981 R100 cafe- 121,000 miles
1985 K100 cafe - 55,000 miles
1987 K75C - 44,000 miles
    

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