Hey folks, just had a question on here real quick...Im a newbie boat owner and i left my champ out over the winter last year (covered of course) and when i went to put it in the water the following season i found that the PSI gauge wasnt reading and was pegged over to max, just stuck there. I was told something about water in the lines residual could freeze and damage the gauge, is that true? I hate just going by the PSI gauge for knowing the engine is getting enough water through it to cool...is there any way a temp gauge can be hooked up somewhere on the powerhead? Also, is there a thermostat on an outboard motor? 2000 mercury 200 efi serial # 0T100528