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1985 BMW K100

Rmcpherson

Member
Joined
Apr 18, 2026
Location
fairfield
Moto(s)
2007 Aprilia tuono
2001 Klr650
1973 rd350
This is my 1985 bmw k100. Bought this bike to build into a cafe bike, unfortunately toying with the idea of letting this project go. It had a blown up engine when I bought it, purchased a used engine off eBay. So the mileage isn’t accurate to the cluster, but I suspect that was the case before the original motor blew up from the p.o. The new motor burns oil but the bike runs really well I suspect it’s valve seals (haven't confirmed this).

Bike is located in Suisun at my shop!

-current reg in my name/clean title
-newer tires
-Relatively clean minor paint stuff here and there it’s a 41 year old bike after all
I still have the old motor that I will include as a parts engine. It needs a head and timing chains if you decide to build the spare motor. 1700$ barf price
open to trades for commuter cars and or potentially a car trailerIMG_4399.jpeg
 

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I had a 85 K100RS, PUT 80K on it. Loved it.
Always parked on the center stand,parking on the side stand would allow oil to Get past the rings and smoke on startup.
That was a common issue on the K100’s.
Good luck with sale, a lot of bike foe the price.
 
I had a 85 K100RS, PUT 80K on it. Loved it.
Always parked on the center stand,parking on the side stand would allow oil to Get past the rings and smoke on startup.
That was a common issue on the K100’s.
Good luck with sale, a lot of bike foe the price.
oh that's very interesting I wonder if thats what been happening then. I don't really ride this as its not my primary bike! but thanks!
 
Yea, that’s normal.
Keep it on the center stand and it should be fine.
Not sure if you know but there is a handle that pulls out under the body work to help put it on the center stand.
A buddy of mine didn’t know when he rode it and hurt his back.
 
I also owned an 85. Mine was a K100RT. Very capable bike. The stans call it the FYK, Finest Year K.

Ratpick is right about not parking on the sidestand.
 
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