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  1. M

    Sta-bil for boats

    Is there a different type of Sta-bil or other product that is appropriate for boats? Does this need to be run through the motor? What other steps are necessary for storage of a motor over the winter (in heated space)?
  2. M

    Foaming fuel

    I am new to this boat, a Duckworth Navigator. It has a 42 gallon tank capacity with the hose for loading up at the front of the boat. Last time I fueled the gas foamed out of the tube. Why? I have never seen this in any car. Is it the length of the tube? Is there a product that reduces foam? I...
  3. M

    Speed difference from Yamaha test

    I have a new to me Duckworth aluminum welded Navigator 172 (17.5 feet in length, 7'9 1/2" width) with a F90 Yamaha motor with a 13 x 19 SS prop. The tested weight is 2,400 lbs. Using a GPS going out and back I recorded a top speed of 32.6 mph at 6,200 RPM. A Yamaha test bulletin...
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