at idle it overheats and the alarm activates, if the engine is running 2000 + it runs fine but sometimes the alarm activates at wide open throttle. New water pump, both new thermostats. This problem occured with new and old thermostats and water pump. The poper thermostats are in the proper locations and not upside down etc... powerhead anodes were always changed and never really got that corroded. pick-up tube is clear. Pisser is pissing. Relief valve is clean . Is there any way to check water pressure, where would you tap into the system and what should the specs be? Any other ideas. This is in salt water, and the same occurs in a tank or in the bay.
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