I own a 2002 Xstar with Perfect pass.
Yesterday I used the boat and the Perfect pass gave wrong speed readings.
I try to better explain the problem: at very low speed, that is 0-4.5 mph the
speed reading was correct. Then, as soon as the speed increased the unit
provided false readings, for example at a measured GPS speed of 10.2 the
reading was 20, at 25 it was 52 ans so on. The more the speed increased, the
more the readings were incorrect. All this both with the Perfect pass disengaged
What could be the problem? I did not inspect the paddle wheel since the boat
was in the water, but it seems that the wheel turns freely since at very low
speeds the reading is correct and if it did not turn well the speed reading should be
lower not higher than the actual one (at least I think).
Any suggestion would be of help. I never had such a problem.