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Unknown K1100 fuel pressure regulator

 
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rbm
Mad Brick Rider


Joined: 02 Jun 2009
Posts: 114
Location: Toronto

PostPosted: Sat Feb 18, 2012 6:39 pm    Post subject: Unknown K1100 fuel pressure regulator Reply with quote

I purchased a used throttle body assembly from a supplier who said it came off of a 1993 K1100. Below is a photo of the unit:



Odd thing is that there is no connection for a vacuum regulation hose as shown in the OEM parts explosion diagram (number 5 & 13 shown below).



In place of a vacuum connection, there is a blue cap. Even the part number stamped on the unit, 0280160753, does not come up in RealOEM.

Has anyone seen this varient on a K1100 FPR? How does this FPR ensure constant fuel pressure without vacuum feedback?
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1987 K75 @k75retro.blogspot.ca
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Inge K.
Flying Brick Rider


Joined: 30 Apr 2011
Posts: 458
Location: Norway

PostPosted: Sat Feb 18, 2012 6:52 pm    Post subject: Reply with quote

K11`s don`t have any vacum connection on the FPR, only K100`s.
The part # is a Bosch part #, and not BMW.

Inge K.
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rbm
Mad Brick Rider


Joined: 02 Jun 2009
Posts: 114
Location: Toronto

PostPosted: Sat Feb 18, 2012 7:10 pm    Post subject: Reply with quote

Inge K. wrote:
K11`s don`t have any vacum connection on the FPR, only K100`s.
The part # is a Bosch part #, and not BMW.

Inge K.

Thanks very much, Inge. Your statement belays the explosion diagram since that drawing clearly shows a vacuum hose connection. Also, it didn't occur to me that the number was Bosch's, not BMW's.
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Inge K.
Flying Brick Rider


Joined: 30 Apr 2011
Posts: 458
Location: Norway

PostPosted: Sat Feb 18, 2012 7:42 pm    Post subject: Reply with quote

On the part diagrams the same drawings often are used on a lot of different models.
If you choose a particular model, and the part isn`t used on that model, the number doesn`t show up on the parts list.
But this is not always completely consistent, so there's no way you can rely on this at all time.

Inge K.
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Number 6
Flying Brick Rider


Joined: 05 Feb 2011
Posts: 481
Location: Paris area, France

PostPosted: Wed Feb 22, 2012 8:31 am    Post subject: Reply with quote

Many drawings are reused from older bike, sometime misleading like in your case.
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