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crankcase noise

  1. Possible Noise From Crank ?

    Honda Naked Sportbikes
    Hi I am the 3rd owner. Previous to me 2 adults owned the bike. Its a 2004 Honda 919 with 24K miles on it. I only hear this sound when I idle and it is very random and inconsistant. It happens only occasionally. It almost sounds like a stumble for a split second then goes away almost like a clunk...