BMW K bikes (Bricks)


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1Back to top Go down   New member Empty New member Mon Feb 01, 2016 8:33 pm

K-TAS

K-TAS
New member
New member
Goodday All. I have decided it is time to get off my butt and get my old brick mobile. I bought the bike three years ago as a project  but it ended up in the back of the shed covered in a blanket.When purchased it was grossly over filled with oil and blew huge clouds of oil smoke when running. I had it running for a couple of minutes with no exhaust and no4 was giving a bit of smoke . Is it possible that when stored for extended periods on the side stand with excess oil in the engine that oil could get into the muffler? I had a similar experience but to a lesser degree with a r100gs. Parked for 4 days on the side stand and it blew a heap of smoke on start up but cleared after a few minutes. I am thinking of installing a new set of rings but need guidance.

Cheers..........Wayne....aka...K-TAS

    

2Back to top Go down   New member Empty Re: New member Mon Feb 01, 2016 8:50 pm

Rick G

Rick G
admin
admin
Hi Wayne welcome to our Knuthaus. The Ks are famous for the oil in the mufler trick even if only a little over full. Take it for a ride to burn the oil out then get used to parking it on the centre stand or denying that the trail of smoke was from your BMW.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

3Back to top Go down   New member Empty Re: New member Mon Feb 01, 2016 9:40 pm

Point-Seven-five

Point-Seven-five
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Life time member
I would guess that your rings are in good shape.

I just went through an exercise in replacing the valve stem oil seals.  My K100 had 110,000 miles on it and was smoking and using about a quart of oil in 500 miles.   When I opened things up, the cylinder walls still showed fresh crosshatch.  A compression test showed very good. 

Get the oil level corrected and see how much it smokes after the first couple minutes of running.  You may find that everything is ok.


__________________________________________________
Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

4Back to top Go down   New member Empty Re: New member Mon Feb 01, 2016 9:44 pm

88

88
Life time member
Life time member
Welcome K-Tas. The smoking on the sidestand thing is normal. Good Onya for getting it going. Don't be too quick to diagnose major failure with a K, it's usually something minor. Whatever it is 99.9% of the answers are here.


__________________________________________________
New member Ir-log1188....May contain nuts!New member Ir-log11

"The world is a book and those who do not travel read only one page." - St. Augustine from 1600 years ago & still true!

K1 - 1989 - AKA Titan (unique K1/K1100RS hybrid by Andreas Esterhammer)
K1100RS - 1995. AKA Rudolf Von Schmurf (in a million bits)
K100RS - 1991 AKA Ronnie. Cafe racer project bike
K75RTP - 1994
K75C - 1991 AKA Jim Beam. In boxes. 
K1100LT 1992 - AKA Big Red (gone)
K100LT - 1988 - AKA the Bullion brick. Should never have sold it.
    

5Back to top Go down   New member Empty Re: New member Tue Feb 02, 2016 12:43 am

Brad-Man

Brad-Man
Life time member
Life time member
Glad to have you active.  Welcome.


__________________________________________________
Toys don't make the man - Man makes the toys....
New member Usa-lo10
    

6Back to top Go down   New member Empty Re: New member Tue Feb 02, 2016 5:17 am

92KK 84WW Olaf

avatar
Life time member
Life time member
The earlier pistons don't have the rings pinned. All piston rings must have an end gap when cold so that when they heat up these end gaps close. Because not pinned and even when they are oil can/WILL end up behind the piston and seep past the rings into the combustion chamber. This happens because the bores slope to the left and the oil left behind the piston drains downhill toward the cylinder head. Any piston near top dead centre can have a serious amount of oil on the underside. This will drain through the end gap and hey presto.....smoke. Overfill will make it much worse, so too does dropping on the side stand and then killing the engine. Kill the engine first, turn off ignition, open helmet, drop side stand and only then drop the bike over....much less smoke. I can make serious smoke of I try, but if I do that then no smoke at all.

Main thing is never judge a K by the smoke when you fire it up from cold, its only because of the engine configuration.


__________________________________________________
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 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 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
    

7Back to top Go down   New member Empty Re: New member Wed Feb 03, 2016 12:13 pm

Dave

Dave
active member
active member
Hi Wayne, welcome to the group. Good luck to getting your K back on the road.


__________________________________________________
Dave  Very Happy  

1987 K100rs
2009 R1200R
    

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