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Xj750rl fork oil specs (1984)

Discussion in 'XJ Technical Chat' started by Toomanybikes, Dec 22, 2017.

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  1. Toomanybikes

    Toomanybikes Well-Known Member

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    Does anyone have the factory manual for the 1984 Xj750rl ?
    Photo of specs would be perfect
    Same basic fork as 900rk but with no air valves
     
  2. MattiThundrrr

    MattiThundrrr Not a guru

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    Was confused about title... Could a moderator please change it to "Fork oil specs"?

    PS. Have you started a thread for the rl yet?
     
  3. Craig B

    Craig B Active Member

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    From what I remember is it not just 30 Weight motor oil?
     
  4. Toomanybikes

    Toomanybikes Well-Known Member

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    Way too thick
     
  5. Toomanybikes

    Toomanybikes Well-Known Member

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    Not yet
     
  6. Toomanybikes

    Toomanybikes Well-Known Member

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    FORK oil and new tires and clean up the rims
     

    Attached Files:

  7. XJ550H

    XJ550H Well-Known Member Premium Member

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    81 to 83 XJ750R spec from FSM
    750r.JPG
    Haynes says same
     
  8. Toomanybikes

    Toomanybikes Well-Known Member

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    84 has no anti dive and is a different fork, similar to xj900rk but no air.
     
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  9. XJ550H

    XJ550H Well-Known Member Premium Member

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    XJ900k 1983
    upload_2017-12-23_21-44-42.png

    1987 XJ900F
    upload_2017-12-23_21-47-35.png
    1995 XJ900S
    upload_2017-12-23_21-50-11.png
    in the end the fork oil you use is a personal choice to the rider how the front end responds to weight and travel load (luggage)
    this is all the info I have on XJ900
     
  10. Simmy

    Simmy Well-Known Member

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    My XJ900RK FSM states 286 cc's +/- 4 cc's
     
  11. Craig B

    Craig B Active Member

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    Well crap.........changed mine just over 20 years ago and I am pretty sure I used 10W30 might have been 5W30.
    I know it was whatever I had handy at the time.
    Guess its due for a change again either way.
     
  12. Toomanybikes

    Toomanybikes Well-Known Member

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    Well 10w30 may be ok because it will behave like 10 weight. Your original post said 30 that is too thick
     
  13. SpearChucker

    SpearChucker Active Member

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    The service supplement for XJ750RL specifies 10w-30. Is there anything I can do to tighten the forks up a little? I can just about totally collapse them just pushing down on the bars.
     
  14. k-moe

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

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    How hard are you pushing?!
    You might want to pull the springs and check their free-length.
     
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  15. Toomanybikes

    Toomanybikes Well-Known Member

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    What is the quantity stated in the supplement manual
     
  16. SpearChucker

    SpearChucker Active Member

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    I’ll check when I get home tomorrow.
    I’m pushing pretty easy so I think that’s a good idea. I’m going on a group ride Sunday and I’ll see how the feel in the twisties.
     
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  17. SpearChucker

    SpearChucker Active Member

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    The supplement manual says:
    SAE 10W30 Type SE Motor Oil: Oil Capacity (each fork)
    286 ± 4cm3 (10.1± 0.14 Imp oz, 9.67±0.14USoz)
    Slowly pump forks up and down to distribute the oil after filling.
     
  18. k-moe

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

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    Fork oil is a better choice (every manufacturer I know of specifies 10W30 or straight 30 motor oil as being acceptable in damper-rod forks). You can mix it wth ATF (roughly equivalent to 5 weight fork oil) to reduce foaming and adjust the viscocity.

    Most of the members have found that 15 weight fork oil is about right, but you'll want to play with that a bit depending on your weight, and the type of riding that you'll do.
     
    Last edited: Jul 21, 2018
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