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Vacuum sync finally

Discussion in 'XJ Technical Chat' started by maz43, Jun 29, 2011.

  1. maz43

    maz43 Member

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    After getting the valves in spec and bench syncing the carbs, I finally got around to doing a vacuum sync.
    I used a home made sync tool with 2 cycle oil in it and a YICS tool made from instructions on the forum.
    I got a little bit of 2 cycle oil in the motor getting the levels adjusted but all levels were set to within 1/2 inch of each other(the sync tool I made is 3 ft high).

    The result.......WOW!
    I didn't know these bikes pulled that hard.
    Thanks to the tips and how to write ups here, I actually did it myself.

    This is a great Forum.

    Maz
     
    maz43, Jun 29, 2011
    #1
  2. HirsuitHeathen

    HirsuitHeathen Member

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    Man this is killing me I can't wait to button up the valves and sync them bad boys up. Congrats BTW!!!
     
    HirsuitHeathen, Jun 29, 2011
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  3. ThomasTX

    ThomasTX Member

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    maz43

    Any pics of your fab work on the tools? I'm working on some myself.
     
    ThomasTX, Jun 30, 2011
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  4. ThomasTX

    ThomasTX Member

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    maz43

    Which YICS tool did you build? I've seen a few versions here.

    Any pics of your fab work on either/both of those tools?
     
    ThomasTX, Jun 30, 2011
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  5. maz43

    maz43 Member

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    The YICS tool was made according to Rickcomatic's specs.
    It works just fine.


    [​IMG]


    The "sync tool" was made with 3/16 clear tubing, 2 3/16 tees,some staples 4 3/16 restrictors and some "slightly used"plywood.
    It ain't pretty but it actually worked.
    I used 2 cycle oil filled up about to about half way up.
    It is very sensitive and a bit of oil got sucked into the motor before I got it on the map. I had to start the motor, see which tube was getting sucked up shut it down and adjust a few times before I could fine tune it.



    [​IMG]
     
    maz43, Jul 3, 2011
    #5

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