Instrument Panel; Speed Calibration - Supra User Manual

Section VIII
Instrument Panel & Controls

Speed Calibration

Speed may be checked using a stopwatch and a standard
slalom course. Adjust the speedometer needle by turning
the adjuster buttons.
Location of the adjuster buttons vary by model. On the
Launch Series they can be found directly under the dash,
while on the other models they can be found to the left of the
12 volt receptacle on the inside of the panel as shown above.
As a general rule of thumb in a non-weighted boat, 3,800
RPM is approximately 36 mph.
(Times are from start gate to end gate)
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