My new SmartCraft guage has been installed (2006 Opti 200 hp). I wait until it reaches 120* - 125* before accelerating and for the most part it will raise to 140*, the stats will open and I'll run around 125* but on 2 occasions after accelerating the temp dropped from 125* to 111* - 113* and stayed there for the entire run. Any concerns? Water temp was 57*. Thanks.