2 speedos

Discussion in 'Questions/Comments' started by Pat Colvin, Sep 27, 2016.

  1. Pat Colvin

    Pat Colvin Hydrodyner

    Joined:
    Sep 20, 2016
    Messages:
    50
    Boat Model and Year:
    it is a Hydrodyne but not sure what year just boug
    why does th hydrodyne have two speedo in it?
     
  2. Hoggskier

    Hoggskier New Hydrodyner

    Joined:
    Aug 9, 2015
    Messages:
    4
    Location:
    Beaver Dam Lake, Wi.
    Boat Model and Year:
    1984 Barefoot 20, Evinrude 225 hp
    Hi Pat,
    All competition ski boats, prior to GPS speedos, have 2. For the most accurate reading, the boat speed is the average between the two. This is because unless you are in a slalom course, it is difficult to go in a perfect staight line, so each speedo pick-up is mounted on either side of the transom. All the newer boats have GPS which provides the correct speed along with throttle control etc. for maintaining boat speed for each event. You may want to use a GPS from a car, to get your speedo's dialed in correctly. If they are the old style "Airguide" speedos, they can be adjusted with a very small allen wrench on the bottom front. Use the auto GPS and get the boat to a set speed and turn the allen wrench on each one to match.

    Hope this helped, ski on,

    Mark
     
  3. Pat Colvin

    Pat Colvin Hydrodyner

    Joined:
    Sep 20, 2016
    Messages:
    50
    Boat Model and Year:
    it is a Hydrodyne but not sure what year just boug
    thank you very much this helps alot as i am new to these boats and going to be doing a mild restore over the winter from plumbing to electrical to replacing the transom and minor scratches and nicks to the hull, any info is going to help me greatly thanks again
     
  4. kevinb

    kevinb Elite Hydrodyner

    Joined:
    Sep 10, 2006
    Messages:
    432
    Location:
    Brookfield, WI
    Boat Model and Year:
    75 HD 18' I/O SOLD & 1985 HD 20' (Boat #2) I/O 350
    Ski Team:
    NA
    Redundant speedos with pitot pickup's were also installed in case one would get fouled with floatsum (weeds) which happens a lot in the lakes around here :).
     

Share This Page