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EXPECTED PSI DURING CARB SYNC.

Discussion in 'XJ Technical Chat' started by REUBEN, Jun 5, 2017.

  1. REUBEN

    REUBEN 1985 XJ700N (NOT PICTURED) Premium Member

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    Tried to upload vid of motor running, but failed. I've took em to church and new plugs.
    I just would like to know how many inches of merc i may be seeing at idle.
     
    REUBEN, Jun 5, 2017
    #1
  2. k-moe

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

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    There is no specification goiven by Yamaha. Just make them all equal.
     
    k-moe, Jun 5, 2017
    #2
    Stumplifter likes this.
  3. Jetfixer

    Jetfixer Well-Known Member

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    Mine are even at 5hg
     
    Jetfixer, Jun 5, 2017
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    REUBEN likes this.
  4. REUBEN

    REUBEN 1985 XJ700N (NOT PICTURED) Premium Member

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    I'm at 5 as well.
     
    REUBEN, Jun 5, 2017
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  5. Jetfixer

    Jetfixer Well-Known Member

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    Mine is happy at that reading and runs great.
     
    Jetfixer, Jun 6, 2017
    #5
  6. REUBEN

    REUBEN 1985 XJ700N (NOT PICTURED) Premium Member

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    Got em all dead set to 5 via vac gauges (wish I had a manometer for better accuracy ). She fires right up and sounds pretty good. I think she will be sitting for awhile while I get the forks, brakes, and tires and hammered out. I'll wait for the color tune until I am road worthy.
     
    REUBEN, Jun 6, 2017
    #6
  7. Jetfixer

    Jetfixer Well-Known Member

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    I color tune old school method..check plug color black rich, white lean , tanish brown hot dog! No I do not use the YISC tool either and it runs just fine.
     
    Jetfixer, Jun 6, 2017
    #7
  8. REUBEN

    REUBEN 1985 XJ700N (NOT PICTURED) Premium Member

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    Did not use the YICS block off. I've got a buddy who will go in halfs with me on a 14mm colortune. We are both 4 wheel techs who hobby with 2 wheels. Hes got a 82 CB900 ss, an early Ducati, and piles of 2 strokes. I've gone thru a few old Yamas and I'll probably never get rid of my 2014 XL1200V Harley.
     
    REUBEN, Jun 6, 2017
    #8

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