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Drive shaft gear oil questions.

Discussion in 'XJ Technical Chat' started by mlwistrom, Jul 1, 2015.

  1. mlwistrom

    mlwistrom Member

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    Where should one drain and fill from on an XJ650? Also, I have seen many debates in several different locations as to if GL-5 gear oil can be used instead of the recommended GL-4. Anybody want to chime in? Will it really damage the shaft and u-joint?
     
    mlwistrom, Jul 1, 2015
    #1
  2. rocs82650

    rocs82650 Well-Known Member

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    Drain and fill plugs are on the top and bottom of the pumpkin. There's another cap near the fill plug. Do not disturb it. It's a vent cap. Imo use GL-4.

    Gary H.
     
    rocs82650, Jul 1, 2015
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  3. Toomanybikes

    Toomanybikes Well-Known Member

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    Vent on top,drain on bottom ,fill is toward rear. Gl 4 is plenty good for the over built rear gear as yamaha does not use limited slip rear end . Just rear tire is limited slip!!
     
    Toomanybikes, Jul 1, 2015
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  4. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    +3 on all of the above. The only difference between GL4 and GL5 is the addative package in GL5 that prevents damage to limited slip differentials (and also damages bronze/copper/zinc parts), otherwise they have the same specifications and duty ratings.
     
    k-moe, Jul 1, 2015
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  5. mlwistrom

    mlwistrom Member

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    So are there any of these broze/copper/zinc in the drive shaft system that could be damaged? The reason why I ask is because I have only found GL-4 in a 140 weight. Everything else I find is GL-5.
     
    mlwistrom, Jul 1, 2015
    #5
  6. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    As of yet I am not certain. What I am certain of is that Yamaha specified GL4 in the service manual. GL4 is widely available in the same weights as GL5. Just about the worst place to shop for lubricants is a motorcycle dealership. They will only stock what their new machines need. Go to an auto parts store, a farm store, or even Walmart and you will find a wider variety of selections.
     
    k-moe, Jul 1, 2015
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  7. Toomanybikes

    Toomanybikes Well-Known Member

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    And for those of us North of the 49th
    That is canadian tire or Lordco
     
    Toomanybikes, Jul 1, 2015
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  8. mlwistrom

    mlwistrom Member

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    I work at Oreillys and we only carry GL-4 in 140 weight. So I will have to look elsewhere...
     
    mlwistrom, Jul 1, 2015
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  9. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    k-moe, Jul 2, 2015
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  10. mlwistrom

    mlwistrom Member

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    Awesome! That makes things a bit easier for me! Thanks
     
    mlwistrom, Jul 2, 2015
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