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Thread: 2002 K1200RS Fuel leak.

  1. #1

    2002 K1200RS Fuel leak.

    I filled it up with premium no alcohol. Road 8 miles to my garage, placed it on the center stand. Next day I noticed a fuel smell and a three inch spot on the floor. Spot was fuel and some oil residue. Fuel was running down the right side of the engine, just above the oil fill plug, above the visible fuel lines and connections, I cleaned up the fuel with towels. Oil level was center of site window. After several days of no leaking, I moved it outside and it started and ran normally with no leaking, I rode it 75 miles, with no problems. When back, i still noticed a fuel smell, but couldn't see any leaks. I added more fuel on my last ride but did not fill it. I left it on the side stand overnight. The next morning, another gas/oil spot under the engine. Back on the center stand, oil level is higher than it was. I plan on draining the oil to see if it has fuel in it. Ideas? Could this be from the fuel rail still having pressure even with the engine off? Thanks
    Ron
    2002 K1200RS, MOA# 17475
    2011 Zero S, 2001 Aprilia RST 1000, 1984 Yamaha FJ1100
    Past, BMW 1977 R100/7

  2. #2
    3 Red Bricks
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    Ron,

    Please don't forget to include the year of the bike in the title of your thread. I've added it for you.

    BMW has had problems with the plastic fuel line quick disconnects. You need to make sure that they have been replaced with metal ones.

    They also have had problems with the top of the pump cracking. This was handled by a recall if I remember correctly. Contact a dealer with your VIN# to see if your bike was one of the ones involved and if it has been upgraded.




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    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
    Mine, Hers, Spare

  3. #3

    Ive had this and fixed it with one other

    The fuel disconnects right where you are seeing the problem go bad over time.. replace with metal quick diconnects. Its an age thing
    paul

  4. #4

    If I recall correcdtly

    those parts are behind the plastic covers on the right side.. take it off and see if that is your problem
    P

  5. #5
    Debbie's Servant Lee's Avatar
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    Quote Originally Posted by 98lee View Post
    They also have had problems with the top of the pump cracking. This was handled by a recall if I remember correctly. Contact a dealer with your VIN# to see if your bike was one of the ones involved and if it has been upgraded.




    The fuel pump flange recall was on the newer bikes. The K1200RS fuel pump is a different setup.
    Lee
    2016 R1200RS
    MOA # 30878
    Past BMW Bikes: 2011 K1300S, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  6. #6
    Debbie's Servant Lee's Avatar
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    Here's what the metal fuel line quick disconnects look like.
    Also check the big plastic ring above the QDs, that's where the fuel pump is located.

    Quick Disconnects.jpg

    I also had to change the sending unit gasket on both of our bikes due to leaking gas.
    It's circled in red.
    This one is not a common problem but I would look at that area.

    Sending unit.JPG
    Lee
    2016 R1200RS
    MOA # 30878
    Past BMW Bikes: 2011 K1300S, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  7. #7
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    My money is on the quick-connects.
    FWIW, there are aftermarket replacements for these, but BMW themselves have upgraded as well. Replacements for the male side of the two-piece connectors are no longer plastic.

  8. #8
    Debbie's Servant Lee's Avatar
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    Quote Originally Posted by JeffDiCarlo View Post
    My money is on the quick-connects.
    .
    Same here.
    Only thing that puzzles me, he should see spraying or leaking when the key is first turned on or the bike is running.
    Lee
    2016 R1200RS
    MOA # 30878
    Past BMW Bikes: 2011 K1300S, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  9. #9
    Debbie's Servant Lee's Avatar
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    Here's the link for the quick disconnects from Beemer Boneyard.
    https://www.beemerboneyard.com/cpcqkdiscon.html
    They give MOA members a 10% discount.

    Or as mentioned above just the metal male end from BMW can be replaced.
    Last edited by Lee; 06-30-2019 at 09:54 PM.
    Lee
    2016 R1200RS
    MOA # 30878
    Past BMW Bikes: 2011 K1300S, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  10. #10

    Reply

    Thanks for all the replies, it helps to hear from those that have experienced leaks in this area. I'm going to pull the right side panel, and look at the couplings and big plastic ring above the QDs. I did drain the oil, I plan on testing it for gasoline. Will keep you posted. Ron
    Ron
    2002 K1200RS, MOA# 17475
    2011 Zero S, 2001 Aprilia RST 1000, 1984 Yamaha FJ1100
    Past, BMW 1977 R100/7

  11. #11
    Debbie's Servant Lee's Avatar
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    It may be too late but try to keep the gas cleaned off of the engine cases.
    It will stain the silver paint yellow.
    Lee
    2016 R1200RS
    MOA # 30878
    Past BMW Bikes: 2011 K1300S, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  12. #12

    Stains

    So far I don't see any. I found the leak early, wiped off the gas, and kept paper towels at the leak to soak up the fuel. Thanks for the tip.
    Ron
    2002 K1200RS, MOA# 17475
    2011 Zero S, 2001 Aprilia RST 1000, 1984 Yamaha FJ1100
    Past, BMW 1977 R100/7

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