Hull/ControlSystems
6.18
Speedometer Operation / Adjustment
The speedometer is operated by water pressure.
The pressure is supplied to the back of the
speedometer through a hose connected to a fitting
located inside the jet pump intake grate area.
1. If the speedometer becomes inoperative first
check hose for kinks or restrictions. Check to see
that it is connected properly to fitting and to back
of speedometer. The fitting must be aligned with
the pump intake grate to read accurately.
2. Occasionally foreign debris such as grass or
weeds will lodge in the fitting or line. To clear hose
and fitting, disconnect hose from speedometer
and apply low pressure air to hose.
3. To test speedometer unit, connect a Mity Vacä to
the fitting on the speedometer. Apply pressure
and compare the reading to the table below.
Re-connect line and test for proper operation.
Speedometer Pressure Test Results
PSI* Genesis MPH Virage MPH
30 57.0 52.7
35 61.6 57.0
40 65.8 60.9
45 69.8 64.6
50 73.6 68.1
* Engine must be running to test speedometer under 30 MPH. Test at or above 30 psi.
Ride Plate
Impeller
Drive Shaft
Intake Grate
Speedometer Pick-up Fit-
ting
Speedometer Fitting
Inspect Line for
Obstruction
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