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Tech Note 5 - Star Gazer Three Event RPM Setting vs. Inverted

The vast majority of boats with mechanical Star Gazer Systems operate with a Standard V8 tachometer setting. The odd boat will run smoother and maintain a 'tighter' control when the signal is set as "inverted".

To determine which is ideal for your boat, do the following:

  1. Watch the digital PP tachometer at idle. Should be steady at about 650. If it is reading high, or is "bouncing", your boat may run better as INVERTED

  2. Set the system in RPM Mode at 3400 RPM and run in open water. The system should engage and lock on 3400 very quickly and maintain a very steady RPM digital tachometer readout. (Should not move more than 10 rpm)

If during this test your PerfectPass digital tachometer does not settle well, or you see spikes (particularly on the high side of 3400) you may wish to try the "inverted" setting and perform this same test.

Go to USER SETTINGS (Menu & Up Keys together) and move to ENGINE SET UP. Press the Up Key to select Standard or Inverted V8.

Ultimately, you should set this at whatever setting gives the smoothest tach reading.

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