Yoke tuning help

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This topic contains 10 replies, has 5 contributors, and was last updated by l-o-s-t-arrow L.O.S.T.Arrow 1 year, 10 months ago.

Viewing 11 posts - 1 through 11 (of 11 total)
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  • October 29, 2012 at 11:27 pm #496794 Back to Top REPORT
    jellymon
    Jellymon

    Joined: 10/29/2012
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    I can only get my helium to tune with the center shot at 3/4 and my cam lean has the arrow (when placed on left side of idler) barely crossing the string at the nocking point. Is this too much? I have read about having a 1/8 gap on left side of string but the only way the string will track straight off the idler at full draw with that setting is if I grip the bow like a hammer and physically twist the riser. The only arrows it will tune with are my axis 340 at 28″ with a 125g point. Same with 100g won’t tune, which it should, right? Not hand torque because exact same results with different grip styles and other shooters. I also get a tail high tear and broadheads hit low and right no matter where my nocking point is. I thought maybe a weak arrow but this bow will not tune with a 400 spine. I get great arrow flight with settings mentioned above, just something doesn’t seem right. I know this is a lot of info but any thoughts are appreciated!

    70 lb helium 28″ draw, axis 340 28″ 125 point, truball short and sweet.

    October 31, 2012 at 6:53 pm #539635 Back to Top REPORT
    l-o-s-t-arrow
    L.O.S.T.Arrow

    Joined: 5/16/2006
    Location: Alberta
    :welcome to the :solocam forum… :thumbup

    Many HeliMs were close to touching string at their optinum…not crossed to bows right tho…
    :D
    Neil

    October 31, 2012 at 6:57 pm #539636 Back to Top REPORT
    blood-bath2006
    Blood Bath2006

    Joined: 10/14/2006
    Tune the yoke so your idler is straight at full draw. I think your spine should be correct if your arrows are 27″. A 400 spine is too weak for your setup.
    October 31, 2012 at 8:02 pm #539637 Back to Top REPORT
    l-o-s-t-arrow
    L.O.S.T.Arrow

    Joined: 5/16/2006
    Location: Alberta
    Tune the yoke so your idler is straight at full draw. I think your spine should be correct if your arrows are 27″. A 400 spine is too weak for your setup.

    :D :thumbup Didnt notice that. #-o ..@70 lb a .400 is way too weak..a .340 Min is suggested

    Neil

    November 19, 2012 at 3:38 pm #539638 Back to Top REPORT
    jellymon
    Jellymon

    Joined: 10/29/2012
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    I am shooting 28″ 340s.
    November 19, 2012 at 5:51 pm #539639 Back to Top REPORT
    tominator
    Tominator

    Joined: 9/19/2007
    The arrow on idler spec changes with the Helim because of the deeper cutout in riser. As mentioned above, it will be closer to center line of string at knock point. Most importantly, have string tracking straight off at full draw. As far as your center shot, I would say that you are good to go. 3/4″ or 12/16″ is not an unusual place to be. Mine tuned exactly at this measurement. [=}=]
    November 21, 2012 at 3:27 pm #539640 Back to Top REPORT
    gjarcher
    gjarcher

    Age: 71
    Joined: 10/3/2006
    Location: Colorado
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    … I also get a tail high tear and broadheads hit low and right no matter where my nocking point is. …

    This is typical of fletch contact resulting from improper rest setup/timing/alignment, etc.

    What arrow rest and what vanes are you using?

    November 21, 2012 at 8:32 pm #539641 Back to Top REPORT
    jellymon
    Jellymon

    Joined: 10/29/2012
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    That was my first thought as well but I’m not getting fletching contact, put lipstick on the entire vanes and shot them a few times, no contact. None on cables either.
    November 21, 2012 at 8:49 pm #539642 Back to Top REPORT
    gjarcher
    gjarcher

    Age: 71
    Joined: 10/3/2006
    Location: Colorado
    View My Bows
    Use the foot powder on the last 4″ of the entire shaft. The vane tips may not be what is contacting, it could be the shaft or nock, especially if there is rest ‘bounce-back’.
    http://www.youtube.com/watch?v=eZK7O_s1Rq8

    What about the question, “What rest are you using?”

    Also, check for nock pinch and fit.

    November 21, 2012 at 11:04 pm #539643 Back to Top REPORT
    jellymon
    Jellymon

    Joined: 10/29/2012
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    Ultrarest LD. Tried the powder, no contact. As for nock pinch, I actually had to reserve it when I first bought it, I could move it with my fingers. Reserved it with .021 and now it’s perfect. I’m getting good arrow flight and late elk is here so I’m just going to move my sight.
    November 21, 2012 at 11:11 pm #539644 Back to Top REPORT
    l-o-s-t-arrow
    L.O.S.T.Arrow

    Joined: 5/16/2006
    Location: Alberta
    Tried the powder, no contact. As for nock pinch, I actually had to reserve it when I first bought it, I could move it with my fingers. Reserved it with .021 and now it’s perfect.

    :D Thats nock fit… :thumbup ..Nock pinch is if nock is pinched between nock points when bow is drawn…EX top and bottom loop knot too close …

    I have seen pinch actually raise arrow off or push onto rest…

    :D
    Neil

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