225 HP Mercury Saltwater EFI overheating

isletlake

Cadet
Joined
Mar 10, 2005
Messages
10
My engine is giving me an overheating alarm at half throttle or more. It runs cool at idle, seems to be pumping lots of water out pisser.
Engine has not been run for two years and now when i try it out, the temp climbs on acceleration.
its a 2002 efi saltwater edition, has approx 200 hrs. Was last used in salt water before being parked.
Any thought on why it might be getting hot at higher rpm
Trying to get out Salmon fishing here on west coast of Vancouver Island
Thanks
 
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