BMW K bikes (Bricks)

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MikeisonTV

MikeisonTV
Silver member
Silver member
So the old girl is being difficult again after a nice long stretch of awesomeness. She cranks but will not start.

-I have fresh oil, new fuel pump, new battery, new Fuel Filter, plugs about 1 year old...

The twist is there's a bit of oil under her:

https://2img.net/h/i22.photobucket.com/albums/b329/mikeisdead/k100/95F6030C-D186-41A0-AB26-78E5A747D224.jpg

Looks like it's coming from the boot of the clutch line where it enters under the bike:

https://2img.net/h/i22.photobucket.com/albums/b329/mikeisdead/k100/F7D152E2-699B-4240-B805-AE2037739214.jpg



Last edited by MikeisonTV on Wed Mar 15, 2017 6:08 pm; edited 1 time in total


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Yep! I'm flipping through the air....that ain't good.
    

AL-58

AL-58
Life time member
Life time member
Side stand down?


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'87 K100RS/HRD sidecar (1100 motor)  sc25 
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

Crank no start 91 K100LT cafe conversion K-dogs10
    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
Wish I knew what model and year you have.  There are some differences.

Most of us put that information in the signature line at the bottom of the post.  It's in your profile settings.


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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
    

Born Again Eccentric

Born Again Eccentric
Life time member
Life time member
@MikeisonTV wrote:So the old girl is being difficult again after a nice long stretch of awesomeness. She cranks but will not start.

-I have fresh oil, new fuel pump, new battery, new Fuel Filter, plugs about 1 year old...

The twist is there's a bit of oil under her:

https://2img.net/h/i22.photobucket.com/albums/b329/mikeisdead/k100/95F6030C-D186-41A0-AB26-78E5A747D224.jpg

Looks like it's coming from the boot of the clutch line where it enters under the bike:

https://2img.net/h/i22.photobucket.com/albums/b329/mikeisdead/k100/F7D152E2-699B-4240-B805-AE2037739214.jpg
An oil leak wouldn't prevent the engine from starting (if all the oil leaked, it might help stop it running in a seriously bad way!). 

First thought about the non starting - the obvious, did you reconnect the fuel pump plug (right hand side under rear of fuel tank? You won't be the first nor the last to forget this essential action! With it disconnected the starter will churn merrily away and the bike will never start - big clue is that you don't hear the fuel pump whine immediately after releasing the starter button.

If it was the side stand or other interlock, the engine shouldn't crank at all.

Oil leak - having looked at pics. Very likely that your clutch actuating arm boot has become cactus. I had this issue very recently. Not a hard job to do but worth considering replacing the actuating arm needle bearing while you're in there (PITA job to get the old bearings out though). Some hints and tips at the link below:
https://www.k100-forum.com/t12004p100-gretel-s-recovery#144443



Last edited by Born Again Eccentric on Wed Mar 15, 2017 5:13 pm; edited 1 time in total (Reason for editing : added link)


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Crank no start 91 K100LT cafe conversion Uk-log10 Crank no start 91 K100LT cafe conversion Sco-lo15Crank no start 91 K100LT cafe conversion Eu-log10
                              Paul  Crank no start 91 K100LT cafe conversion 905546712

"Heidi" K100LT 1991 (Grey) (VIN 0190172 Engine No. 104EB 2590 2213) - 5th owner. January 2014 (34,000 - 61,000 miles and counting....)
"Gretel" K100LT 1989 (Silver Grey) (VIN 0177324 Engine No. 104EA 2789 2211) - 4th+ owner. September 2015 (58,500miles and counting....). Cat C Insurance write-off rebuild Feb 17
"Donor" K100LT 1990 (Red)  (VIN 0178091 Engine No. 4489 2024) - 6th & final owner (crash write-off now donor bike).   June 2012 (73,000 miles) to November 2013 (89,500 miles)
    

MikeisonTV

MikeisonTV
Silver member
Silver member
I did check the connection under the tank...it seems to be connecting and is definitely plugged up. 

Mine has started with the side stand down as long as the clutch lever is pulled in since I had her(3 years)


__________________________________________________
Yep! I'm flipping through the air....that ain't good.
    

Laitch

Laitch
Life time member
Life time member
@MikeisonTV wrote:I did check the connection under the tank...it seems to be connecting and is definitely plugged up. 
I'm guessing you mean plugged in. Your bike had a problem with that plug last year. Be certain the pins and sockets are clean and that they are making a tight connection with each other.

Is power at fuse #6? Is the fuse ok? Are the grounds clean and tight? Is the battery fully charged?


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1995 K75 81,000 miles
Crank no start 91 K100LT cafe conversion Usa-lo10
    

MikeisonTV

MikeisonTV
Silver member
Silver member
@Laitch wrote:
@MikeisonTV wrote:I did check the connection under the tank...it seems to be connecting and is definitely plugged up. 
I'm guessing you mean plugged in. Your bike had a problem with that plug last year. Be certain the pins and sockets are clean and that they are making a tight connection with each other.

Is power at fuse #6? Is the fuse ok? Are the grounds clean and tight? Is the battery fully charged?

Good memory! I did check ALL the fuses. The battery is charge up. The leans to the connector under the tank seem to be solid. I guess I could replace the plug if you guys recommend a better option to eliminate it from the culprit list.


__________________________________________________
Yep! I'm flipping through the air....that ain't good.
    

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