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  1. #1
    Banned User
    Join Date
    Sep 2014

    TTO tach settings for 1300r?

    I'm having an issue with my tach. It reads right at idle and revving on the trailer, but on load it only shows a max of around 5000 rpms.

    PPR: 2.0
    Sensitivity: High
    Speed/Filter: Fast

    pickup wire is about 2in from the coil.

    What settings have the best success?

  2. #2
    Ive never got my tto tach to read correctly. Its always gave me grief. I tried every setting aswell

  3. #3
    Prism's Avatar
    Join Date
    May 2007
    "New" Jersey
    If you've tried the different settings, I would call them directly. I use to use a Tiny Tach early worked, but was not as consistent as I wanted. The Tiny Tach only updates the rpm every 1/2 a second (twice a second) which will work ok but can lead to false readings if you're not careful holding the throttle long enough. The PET 2100 tach updates 20 times a second which is much faster and accurate. While there are some on here using a Tiny Tach, I'd say 90%+ of the really fast guys are using a PET tach. Some tachs just won't work on the 3cyl GPR, or stop reading after a certain rpm because the tach hardware is not fast reading enough. I'd call them and if you can't get it to work I'd look to PET tach.

  4. #4
    Banned User
    Join Date
    Sep 2014
    For $160 shipped I can get 10 times a second and datalogging. I think it's the route I'm going to go.

  5. #5
    Used Tiny Tach on everything from 2 cycle gas boats to skis with zero issues.On the GPR only way I could get a good reading was wrapping the read wire around all 3 wires at the electrical box and using the 360 setting worked fine after that.

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