There is not calibration and it sounds like you have analog gauges and not Smart Craft. If it is Smart Craft, then something is wrong. If they are analog, then a bad gauge is likely.
Yep…analog gauges and not smart craft…something else I could have said up front…I will replace the gauge. Can you guess my next question? Can I order the part from Bass Cat? Like to keep the gauges the same…Ill take a picture to ensure I order the correct part. Bear