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XJ swap for XS engine

Discussion in 'XJ Technical Chat' started by globalmaa, Aug 17, 2009.

  1. globalmaa

    globalmaa New Member

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    So it looks like my 1981 XJ650 LH has a crap out motor that needs a complete rebuilt. so my question is this, could i swap out the XJ650 for a XS650 engine? I know the XJ is a shaft drive and the Xs is a chain drive but are the frame the same except the swingarm? and could i change the swingarm off a xs650 to my XJ650 or maybe add a hardtail kit to it . Basically could i install an XS650 into my XJ650LH? let me know of any problems or if this could be done. thanks in advance.
     
    globalmaa, Aug 17, 2009
    #1
  2. mlew

    mlew Well-Known Member

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    Anything can de bone if you want to . I can see several problems you will face.
    1- the XS650 engine is a 2 cylinder and the XJ650 is a 4 cylinder
    2- Shaft drive to chain drive
    3- electrical wiring and igniton
    That's just the start. My suggestion is to search EBAY and find a good used XJ650 engine and buy it. I have seen them go for a couple of hundred bucks. Thats easier than trying to do all thos modifications.
     
    mlew, Aug 17, 2009
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  3. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    The frames are completely different, to answer your first question.
     
    bigfitz52, Aug 17, 2009
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