I have a 2004 LSV Monsoon 340. Boat the last 100 hours or so has always stayed at 160 while warmed up. This morning took the kids skiing and it never went above 140. Battery is good, other gauges work fine. Manifolds do feel cooler. Ran at 160 yesterday.
what are the odds the thermostat is stuck open? Currently pulling it out and sticking it in some hot water to test. Any other ideas?
Is it bad to run it at a lower temp?
of course I have a spare at home about 2 hours away…
Thanks!
Edit. (not pulling the thermostat, I don’t have any gasket sealant.) I’m assuming I can just pull the blue plug to see if water is flowing with lower temp to see if water is flowing before the engine is up to temp, correct?
thanks!!!