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Author Topic: Water getting into fuel tank.. Trouble finding new cap gaskets.  (Read 5912 times)

Offline docrocket

  • Motobrick Curious
  • Posts: 14
Water getting into fuel tank.. Trouble finding new cap gaskets.
« on: December 13, 2016, 01:11:22 PM »
The main gasket in my k100 has failed, and I'm having trouble finding a replacement. They are not available at any of the online dealers that I've checked out.


Anyone know where I'd find one?
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  • Boston
  • 85 K100, 87 K100

Offline Martin

  • ^ Quintessential Motobricker
  • Posts: 4475
Re: Water getting into fuel tank.. Trouble finding new cap gaskets.
« Reply #1 on: December 13, 2016, 01:46:27 PM »

Moto Bins UK have the filler cap gasket kit.
Regards Martin.
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  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline The Mighty Gryphon

  • Administrator
  • ^ Quintessential Motobricker
  • Posts: 6843
Re: Water getting into fuel tank.. Trouble finding new cap gaskets.
« Reply #2 on: December 13, 2016, 01:50:55 PM »
Your friendly BMW stealer won't have that gasket but they will gladly sell you the complete kit for $32.50.

Better hurry because the price will be going up soon.
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  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline Donmystic1

  • ^ Proficient Motobricker
  • Posts: 157
Re: Water getting into fuel tank.. Trouble finding new cap gaskets.
« Reply #3 on: December 13, 2016, 02:05:43 PM »
Max BMW appears to have complete gasket sets . Look at a K100rs model
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  • Mystic, CT
  • 1985 K100, 1985 K100RS, 1986 K100RS Turbo,1985 K100RT

Offline docrocket

  • Motobrick Curious
  • Posts: 14
Re: Water getting into fuel tank.. Trouble finding new cap gaskets.
« Reply #4 on: December 13, 2016, 02:07:53 PM »
Guess I'll just buy the whole kit. Thanks for the quick help, guys.
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  • Boston
  • 85 K100, 87 K100

Offline Donmystic1

  • ^ Proficient Motobricker
  • Posts: 157
Re: Water getting into fuel tank.. Trouble finding new cap gaskets.
« Reply #5 on: December 13, 2016, 02:10:10 PM »
I think that they have the main one as a separate item.
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  • Mystic, CT
  • 1985 K100, 1985 K100RS, 1986 K100RS Turbo,1985 K100RT

Offline kris

  • ^ SuperNatural Motobricker
  • Posts: 584
Re: Water getting into fuel tank.. Trouble finding new cap gaskets.
« Reply #6 on: December 13, 2016, 05:53:20 PM »
With the euro so weak against the greenback shouldn't the prices be going down?? :dunno
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  • In The Hammer!! Hamilton, Ontario, Canada
  • 1986 K100RT (Heinz) 2004 Kawasaki Concours (Eddy) 2007 Moto Guzzi Breva 1100 (Linda) Previous: 1968 Honda CD175 1973 Kawasaki S2350 1975 Honda CB550K
"I got bike fever bad!!"

Offline Donmystic1

  • ^ Proficient Motobricker
  • Posts: 157
Re: Water getting into fuel tank.. Trouble finding new cap gaskets.
« Reply #7 on: December 13, 2016, 06:22:05 PM »
The gasket (#8 ) is $11.13 at Max BMW. It is not just a flat piece of rubber.


A & S BMW, Beemer boneyard, Countryside BMW in Chicago usually have discounted parts.
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  • Mystic, CT
  • 1985 K100, 1985 K100RS, 1986 K100RS Turbo,1985 K100RT

Offline K1300S

  • ^ Quintessential Motobricker
  • Posts: 1293
Re: Water getting into fuel tank.. Trouble finding new cap gaskets.
« Reply #8 on: December 13, 2016, 06:49:25 PM »
If the main gasket failed,  the others are soon to follow.   Get the full kit and replace them all.   

Just what I would do...
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Project Thread "K75s Midlife Refresh"
http://www.motobrick.com/index.php/topic,7810.0.html

Offline Rcgreaves

  • ^ SuperNatural Motobricker
  • Posts: 974
  • "I'd rather be flying, but this will do nicely"
Re: Water getting into fuel tank.. Trouble finding new cap gaskets.
« Reply #9 on: December 14, 2016, 12:40:16 AM »
I was prowling YouTube just today- searched BMW k75 starter brushes replacement ( my current work) and came across videos by affordable BMW repair in cape cod I think the very origin but knowledgeable dude is Chris Harris.  Anywho one vid highlights R+R on gas caps and reference to his parts source.  PS : he did I nice job of detailing how to clean and lube the lock mechanism

Sent from my A573VC using Tapatalk

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  • Livingston in Southwest WI. USA-"With the good earth all around."
  • 94' K75S, 85' GL1200 Aspencade, 96' VFR750F, 01' GL1800. Restoring: 95' K1100RS, 83' R80RT NEW: Motorvation Formula II
Doing “better than I deserve"

Offline The Mighty Gryphon

  • Administrator
  • ^ Quintessential Motobricker
  • Posts: 6843
Re: Water getting into fuel tank.. Trouble finding new cap gaskets.
« Reply #10 on: December 14, 2016, 10:12:25 AM »
Chris works out of a town in New Hampshire.  He's on my list of famous places to visit the enxt time I am in New England.
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  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline Vespa no more

  • ^ Proficient Motobricker
  • Posts: 230
Re: Water getting into fuel tank.. Trouble finding new cap gaskets.
« Reply #11 on: December 19, 2016, 12:39:51 AM »
Maybe a temporary cover - blue tack a plastic sheet over the fuel cap (approx the size of a learners magnetic square (obviously the tank is aluminium)).


Silastic perhaps - especially seeing you will be replacing the gasket.


Try motobins UK



GF
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  • Wollongong NSW AUSTRALIA
  • K100RT 1984, K1100RT 1993, Vespa VNB125 1963 :)
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