, loosened, tightened, throttle" /> howling sound from primary
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Thread: howling sound from primary

  1. #1
    Junior Member
    Join Date
    Oct 2013
    Im getting a howling sound from (I think the primary) when in 1st, 2nd or 3rd gear and let off the throttle! I don't know what it is. I have tightened and loosened the primary bolt and the sound is still there!! ANY IDEA?

  2. #2
    Senior Member
    Join Date
    Aug 2012
    High pitched, grinding, consistent with RPM hear it with free revving or only under load/engine braking?

    Could be a number of things, the blast is kinda stupid in its design regarding adjusting the primary chain. But if no change with adjusting the chain occurs, then the cause is likely a major repair, related to transmission, and that involves tear down and inspect.

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