BMW K bikes (Bricks)

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1Back to top Go down    New member from Portland oregon on Thu Jun 29, 2017 4:28 am

Semlisun

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Hello everyone, my name is Simon and a recently picked up a 1988 K100rs. It has 81,000 on the odometer and what looks to be a small oil leak from the back of the engine. Might be a clutch boot or rear main seal.
The only experience I have so far is I rebuilt a 1978 Honda cb750 and but I really like the look of the k100 and when the time was right was able to pick one up for a great deal.

I am planning to replace all the rubber, clutch, rear main seal and all the oils and fluids.
With this I will also do the spline lube.

Any advice will be greatly appreciated.

    

2Back to top Go down    Re: New member from Portland oregon on Thu Jun 29, 2017 8:23 am

duck

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WelKome from another Pacific Northwet member.

I wouldn't replace the rear main seal unless it's leaking. A common source for oil leaks at the rear of the engine is the clutch nut O-ring. Once you take the transmission off to access the clutch you will know what the cause of your oil leak is.


__________________________________________________
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
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

3Back to top Go down    Re: New member from Portland oregon on Thu Jun 29, 2017 3:33 pm

Semlisun

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Thank you!
That's exactly what I was going to do. Just assess it when I get into it.

    

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