BMW K bikes (Bricks)

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1Back to top Go down   K1100 vs K100 fuel tanks  Empty K1100 vs K100 fuel tanks Sun Nov 29, 2020 4:55 pm

Cafed

Cafed
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I have a 1993 K1100 with a very slight fuel leak on the lower left side (I see here that this is very common). The tank on it uses the 130mm front mounting. I see the K100 uses the 90mm front mounting. Has anyone cut down the mounting pins on the K1100 frame and used a k100 second generation tank? There seems to be more of them available. Also I realize I have the smaller fuel pump in my K1100 tank. Does the larger K100 fuel pump run the same pressure? Thanks in advance for any help

    

2Back to top Go down   K1100 vs K100 fuel tanks  Empty Fuel pressure Sun Nov 29, 2020 6:39 pm

daveyson

daveyson
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Hi welcome

I think the fuel pressure is determined by the fuel pressure regulator, don't know if the regulator is the same in a k1100.


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11/1985 bmw k100rt (late model)  Vin. 0090567
 ~120,000 km
    

3Back to top Go down   K1100 vs K100 fuel tanks  Empty Re: K1100 vs K100 fuel tanks Sun Nov 29, 2020 7:00 pm

MartinW

MartinW
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Clean it off down to bare metal where it's leaking then take it to a competent welder and let him have a look.
Regards Martin.


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K75s Hybrid
    

4Back to top Go down   K1100 vs K100 fuel tanks  Empty Re: K1100 vs K100 fuel tanks Sun Nov 29, 2020 9:07 pm

Rick G

Rick G
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The tank with the wide mounting is for the K1100 with the two top frame tubes ( LT after early 93 and all the RS models) and the two are not interchangeable as the pressing of the bottom of the tank is different.


__________________________________________________
"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 2004 K1200GT 1998 K1100 LT, 1986 K75 GS.
    

5Back to top Go down   K1100 vs K100 fuel tanks  Empty Re: K1100 vs K100 fuel tanks Sun Nov 29, 2020 9:18 pm

Cafed

Cafed
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RicK G wrote:The tank with the wide mounting is for the K1100 with the two top frame tubes ( LT after early 93 and all the RS models) and the two are not interchangeable as the pressing of the bottom of the tank is different.
Thank you yes the backbone of my frame splits off in 2 pipes from the steer tube. I have never had a K100 so I did not realize they were different. I guess I need to fix what I have or find a K1100 tank

    

6Back to top Go down   K1100 vs K100 fuel tanks  Empty Re: K1100 vs K100 fuel tanks Sun Nov 29, 2020 9:19 pm

Cafed

Cafed
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New member
MartinW wrote:Clean it off down to bare metal where it's leaking then take it to a competent welder and let him have a look.
Regards Martin.
Looks like I may have to take that route. Thanks

    

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