Question about 2003 BMW R 1200 CL

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When I turn the ignition key on, and the fuel pump engages the injectors, the "sound" the pump makes grows louder and pitches up and down with the throttle. This has just happened in the last day or so. the bike has 32k miles on it. ( I bought it with 28,000) The sound seems to be isolated to the right side of the bike.

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  • BMW Expert
  • 303 Answers

Time to replace the fuel pump

Posted on Feb 18, 2015

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 2712 Answers

SOURCE: fuel pump

Can you hear the pump when you turn the key on normally? When the pump on my old FJ starts up with the key, it makes enough racket to let you know. Your bike is alot smarter than mine, it might be able to tell that the lines are unhooked and preventing the pump from working as a safety thing. Is the fuel line made of or contain any metal? It may need to see continuity in the fuel system to allow the pump to operate. Or some other parameter is not being met with the lines disconnected. Have you tried thumbing the starter with the lines off? The bike might only pressurize the system when the engine is starting or running.... actually, this is my best guess now that I think of it.

Posted on Nov 20, 2008

rockitman187
  • 2559 Answers

SOURCE: 2002 K1200LT not getting enough fuel

This sounds like you just need to clean up the fuel system.

  1. Clean the throttle body
  2. Change the fuel filter.
  3. Run some injector cleaner through the system.
  4. change the air filter.
If that doesn't do it,have the injector replaced


Please rate this a fixya

Posted on Feb 08, 2009

  • 3 Answers

SOURCE: Bike backfires and I can't get a smooth ride

I would say it is a faulty engine temp or Air temp sensor,

Posted on Jun 29, 2009

nickbosch
  • 5 Answers

SOURCE: BIKE IS RUNNING REALLY RICH 1990 K100LT

do you mix oil with your gas? if so cut back on the oil.

Posted on Nov 11, 2009

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