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plug colors

Discussion in 'XJ Technical Chat' started by jeffhestand, Aug 22, 2011.

  1. jeffhestand

    jeffhestand Member

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    just put in new plugs after firing her up after a carb rebuild. Ran it about 20 mins off and on and then pulled the plugs. # 2 and # 4 are dark gray, Not gassy wet or oily wet just dark gray. # 1 and # 3 look as though they are burning good and will be fine. I have no idea how this bike was treated by PO and has 5700 on clock.
     
    jeffhestand, Aug 22, 2011
    #1
  2. jeffhestand

    jeffhestand Member

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    forgot to add a few things. Installed new needle seats and adjusted float levels. Not sure what adjustments i can make from here to reduce the running rich in cylinders 2 and 4? Any help appreciated. Low mileage bike i am trying to revive.
    thanks
     
    jeffhestand, Aug 22, 2011
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  3. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    Have you checked the valve clearances yet? If not, start there.

    HOW did you set the float levels?

    What method did you use to vacuum sync? Is it a YICS motor bike?

    You're not giving us much to go on.
     
    bigfitz52, Aug 22, 2011
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