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Thread: Porting/timing question

  1. #1
    Join Date
    Jun 2004
    Location
    Oregon
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    Porting/timing question

    When you port should you advance the timing as well?? Or does it not really matter..?
    1986 ATC 250R
    Ported w/ Cool head
    LED pipe and silencer.
    Vforce3
    Keihin PWK 38mm
    Works Ultra Cross Shock
    LSR +2 Axle
    American Star Racing +4 Swinger
    LED Intake
    Hi-Flite desert seat
    OEM clutch 89 upgrade
    2021 YFZ450Rse Rossier R5 Titanium Header AIS Delete FCI Vortex ECU


  2. #2
    Join Date
    Nov 2003
    Location
    Front royal, va
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    2,186
    most builders will tell you to go ahead and avance it a few degrees, every bike that i have that has been ported is advanced but the tri-z , i have it retarted
    1985 With "86" Plastic's,Custom 12" Alluminum Extended Swing Arm,39MM PWK,"TRX" Filter,9 Paddle TALLER HALLER'S on 11" Wide Rim's,LOT'S of Stainless,LOT'S of Alluminum,LOT'S of PowderCoating,NOTHING Stock..

    FASTEST Tri-Z on The Planet...MAKE A NOTE !! and the SECOND FASTEST, WRITE IT DOWN AGAIN!!!

  3. #3
    Join Date
    Jan 2006
    Location
    conesus lake NY
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    Quote Originally Posted by 03 ORANGE SHEE
    most builders will tell you to go ahead and avance it a few degrees, every bike that i have that has been ported is advanced but the tri-z , i have it retarted
    why did you retard the z because of the motoplat???????????

  4. #4
    Join Date
    Nov 2003
    Location
    Front royal, va
    --
    2,186
    yes, i ride it in the woods and trails, so i wanted more of a low end hit.if i drag race it, i advance it 7 degrees, it has marks on it let you know where it is
    1985 With "86" Plastic's,Custom 12" Alluminum Extended Swing Arm,39MM PWK,"TRX" Filter,9 Paddle TALLER HALLER'S on 11" Wide Rim's,LOT'S of Stainless,LOT'S of Alluminum,LOT'S of PowderCoating,NOTHING Stock..

    FASTEST Tri-Z on The Planet...MAKE A NOTE !! and the SECOND FASTEST, WRITE IT DOWN AGAIN!!!

  5. #5
    Join Date
    Jan 2006
    Location
    conesus lake NY
    --
    11,894
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    1
    ahhh thought so....your still going to let me touch your motoplat at TF LOL!

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