2017 GTS, 30 hours, temp alarm keep going off.

[detz]

Just started happening this week after we reached 30 hours. Was random and went away and then a few hours later it happened a couple more times. What should I check first while it's in the water, I don't have an easy way to get it out of the water this weekend? Thanks

 

[Dr Honda]

I'll move this to the 4-stroke section for you. But I would start with making sure that you coolant in the system.

 

[detz]

Yup, it’s basically empty. How would it drain out, I don’t see any signs of a leak? Guess I have to go find some coolant, anything special I need?