03 wr450 whining noise

7 replies to this topic
  • knuckleduster271

Posted May 23, 2009 - 03:01 PM


My bike has developed a "whining" noise that increases as the rpm's get higher. It never done this before nor do my friends wr's do it. It's not a knock or a tap its just a high pitched whine coming from the engine. The engine doesnt have very many hours on it. Any help would be greatly apprieciated.

  • knuckleduster271

Posted May 24, 2009 - 10:45 AM


any ideas????


Posted May 24, 2009 - 02:52 PM


By chance did you recently put a skid plate on it. If so you'll hear all kinds of mechanical noises you never noticed before. Just a thought.

  • knuckleduster271

Posted May 25, 2009 - 04:50 PM


no skid plate, this is a noise that it has just developed in the last week.

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  • BEAN329

Posted May 25, 2009 - 05:06 PM


a coupe of questions, does it do it sitting still, or when moving. Did you do anything with the air filter or subframe. did you just change the oil.

  • DrzDasher

Posted May 25, 2009 - 08:49 PM


Are you sure it isn't a chirp? If it is more like a high pitch chirp coming from the engine area, it is the carb. Other than that I don't know.

  • knuckleduster271

Posted May 26, 2009 - 07:00 AM


It does it all the time, its is a whine similar to a turbine or a car with a gear drive in it. I can tell for sure its in the engine. Last night while trying to diagnose it I saw that my water pump has a slight leak. Think this could be the problem? I havnt done any recent maintenence either.

  • ncampion

Posted May 26, 2009 - 09:38 AM


Fix the water pump and see if it goes away. You will have to do the pump anyway, could be the cause.


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