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Well it started today and it didn’t

Discussion in 'XJ Modifications' started by Christopher McTavish, Feb 24, 2018.

  1. Christopher McTavish

    Christopher McTavish New Member

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    Tried starting the 550 and the 1100 today.
    What I know.
    The 550 is a rebuild project from ground up.
    Compression 1-4 all about 58 lbs. :(
    on the other hand the 1100
    She barks like a big dog. Ooohhhh mmyyy word sweet baby Jesus that thing is all that and a bag of chips. :D:eek::)
    Next step cables and hoses.
    Some wiring
    Valves
    And a bit of the church.
    Clean out tank
    We will go from there.
    :)
     
  2. Christopher McTavish

    Christopher McTavish New Member

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    BC8DE4F5-32CC-435F-9EA8-C6E77E796189.jpeg Took the carbs off the 1100 tonight to take to work and start the clean process and start figuring out what I will need to order for sure.
     
  3. Jetfixer

    Jetfixer Well-Known Member

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    Before writing off low compression ...try another compression tester ..was reading dry or did you try it with a little oil to see if it went up? Have the valves been adjusted to proper spec? Did you have throttle wide open when cranking and all the plugs out? Was battery fully charged? All these items can effect readings ...
     
  4. mlew

    mlew Well-Known Member

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    It is common for a engine that has been sitting for many years to have low compression. Non running engines get corrosion build up on valves and rings making the numbers low. Get the engine to run before you spend time and money on it. That 58 psi just might come up to 120 with a few run cycles on the engine.
     
  5. XJ550H

    XJ550H Well-Known Member Premium Member

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    could be stuck rings and treat with atf and acetone for a week and try again
     
  6. Christopher McTavish

    Christopher McTavish New Member

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    Test was preformed dry and wet. Thinking stuck valves. It has sat out for a while I was told so thinking valves. Haven’t had much chance to mess with since to investigate further.
    Battery was charged and spun over good.
    Didn’t mess with throttle.
    Spark seemed a bit low too, not very healthy looking lol.
    Concentrating on the 1100 for now it cracked and started so get it on the road first tinker with the 550 when I have extra time.
     
  7. XJ550H

    XJ550H Well-Known Member Premium Member

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    stock coils have a weak spark
     
  8. Christopher McTavish

    Christopher McTavish New Member

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    So that is normal. Otay
    Maybe I’ll play with it tomorrow with some atf.
     
  9. Christopher McTavish

    Christopher McTavish New Member

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    Ugh. PO not sure what one messed this carb up. I will need one new body and of corse it’s number two. :(:mad:
     

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  10. XJ550H

    XJ550H Well-Known Member Premium Member

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    there is a post about a guy that welds the posts. posted in the last month.



    edited for incorrect info
     
    Last edited: Mar 3, 2018
  11. Christopher McTavish

    Christopher McTavish New Member

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    I thought numbe two was only one with vacuum line on head side???
    This is on the 1100.
     
  12. Christopher McTavish

    Christopher McTavish New Member

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    F58F0205-7088-42D4-931C-B5CAC44337C0.jpeg A51C7146-5BDE-409C-A7A8-46FE4B2ADB3E.jpeg
     

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  13. XJ550H

    XJ550H Well-Known Member Premium Member

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    carbs i posted was 550 sorry so was info on body swapping .

    xs and xj1100 parts are hard to find
     
  14. Christopher McTavish

    Christopher McTavish New Member

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    Yeah. I,m figuring that out lol.
     
  15. MattiThundrrr

    MattiThundrrr Not a guru

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    When was the post post posted?

    :p
     
  16. XJ550H

    XJ550H Well-Known Member Premium Member

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  17. Christopher McTavish

    Christopher McTavish New Member

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    image.jpg image.jpg Someone already tried to fix it once and there is a significant amount of material missing. There is also a peace of steel down the center, like a nail that they tried to stiffen it up with. I’m a welder and can go that route if needed but there isn’t as much to work with as you may think. Would be easier if I can find a body to just buy a body.
     
  18. XJ550H

    XJ550H Well-Known Member Premium Member

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    xs1100 has a guy selling 2 sets of carbs
     
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  19. adrian1

    adrian1 Active Member

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  20. Christopher McTavish

    Christopher McTavish New Member

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    I will be posting a fix it thread in the next few days.
    My dad and I cranked up the lathe and milling machine and are almost done with the fix. I have a bunch of pictures. Went this route due to unforeseen money shortage and Dad and I’s labor and time are free. Actually a lot easier then we both originally figured. Look for new thread soon.
     

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