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Noise at certain speed

Discussion in 'XJ Technical Chat' started by RPS, Aug 28, 2015.

  1. RPS

    RPS Member

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    Finally got my Bike on the road and took a ride around town to check it out. Noticed at 40-45 mph there is a high pitched whine. Above it goes away and below that it's not there either. It has good power and I didn't notice any vibration just a whine
     
    RPS, Aug 28, 2015
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  2. rocs82650

    rocs82650 Well-Known Member

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    The whine is normal. It's a part of the xj majic.

    Gary H.
     
    rocs82650, Aug 28, 2015
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  3. RPS

    RPS Member

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    That's good to know , cause I kinda liked it!
     
    RPS, Aug 28, 2015
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  4. MN-Maxims

    MN-Maxims St. Paul Minnesota

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    I always thought the whine came from the final drive. I don't think the chain drive 550's make that sound.
     
    MN-Maxims, Aug 28, 2015
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  5. RPS

    RPS Member

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    Is there something I need to check?
     
    RPS, Aug 28, 2015
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  6. tabaka45

    tabaka45 Well-Known Member

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    My 85 xj700n does the same thing and has the entire time I've owned it. I asked the same question and got the same answer--3 or 4 years ago. To me it really sounds good when the whining fades out.
     
    tabaka45, Aug 28, 2015
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  7. MN-Maxims

    MN-Maxims St. Paul Minnesota

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    No it's a normal sound these bikes make.
     
    MN-Maxims, Aug 28, 2015
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  8. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Love the whistle/whine/whatever you want to call it. Some say its the stator whistle, some say its the middle gear whine, some say the rear gear.

    I don't believe it's the rear or the middle gear.... It whines with revs and in neutral so it seems it can't be gear related. Whatever it is, though, dang I love that sound!!!!
     
    hogfiddles, Aug 28, 2015
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    rocs82650 likes this.
  9. RPS

    RPS Member

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    So do I! Especially since its normal. I'll here it some more tomorrow!
     
    RPS, Aug 28, 2015
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  10. Toomanybikes

    Toomanybikes Well-Known Member

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    Isn't that gear a straight cut gear like an old Muncie 4speed has that whine.
     
    Toomanybikes, Aug 28, 2015
    #10

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