I have a 2006 115 opti with 920 hours on it and it has been serviced every 100 hours since new. Never a hiccup til now. I have the smart tach and the water pressure alarm has started sounding and the pressure is fluctuating between .39 bars to 1.15 bars and the alarm sounds when it drops to the lower range then stops as it comes back up. What is the normal pressure and will it hurt it to keep running? It is a Sunday and I can't get any response from my dealer. Anyone have any ideas?
