humming coming from heads

Discussion in 'Engine, Fuel and Exhaust' started by Jayco3, Feb 13, 2011.

  1. Jayco3

    Jayco3 New Member

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    whats up guys, ok I have a revtech 88 that is almost brand new its a 2005 motor but only has about 50 miles on it ...if that. It just sat for the last 5 years in my dads garage. the starter gear is worn so I have to kick start it. well I noticed that when it warms up I hear a weird hum or flute like sound coming from the heads. almost sounds like a harmonica. when I turn the bike off and kick it soft (just enough to move the pistons ) I can really hear the noise. when it is cold no noise what so ever. just want to know is this normal tp hear this sound? or maybe everything still needs to be broke in. any ideas will be much appreciated. thanks ....
     
  2. HDDon

    HDDon Experienced Member Contributor Retired Moderators

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    If it were more high pitched I'd say you might try retorquing the heads. Have you tried to see if the exhaust flanges are tight?
     
  3. deucedog

    deucedog Active Member

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    You have to teach it the words, then it will stop humming.


    sorry, I know your question was/is serious but I couldn't resist. :D
     
  4. FishHunter

    FishHunter Active Member

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    That is an odd one.
    Umbrella valves???
    We basically stopped working on those.
    Scott
     
  5. Billbo

    Billbo Junior Member

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    you dog you -- but that was funny!!!:)
     
  6. deucedog

    deucedog Active Member

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    :s

    I'd be interested in hearing what the noise is though.
    Who knows, some day I might need the answer then someone
    can remind me of my own humor.
     
  7. Jack Klarich

    Jack Klarich Expert Member

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    I would have a look at the valve springs:s Have seen and heard this before JMO:s
     
  8. backinthesaddle

    backinthesaddle Member

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    I was going to say to enter it in American Idol:bigsmiley8: