Overheating issue

lukeb83 said:

Hey guys,
I just got my boat out for spring and ran her in the yard a little bit. its a 1986 18' larson citation 140hp I/O. i had the boat winterized and it was fine when i brought it to the shop. i made sure all the fluids were topped off before i started her up. About 5 minutes in, i noticed she started to overheat (yes i had the rabbit ears on and the hose going lol). so i shut her off and let it cool down. i started it again and had the same result. So where should i begin troubleshooting this issue? should i test the water pump first? i know the impellar hasnt been changed in 3 years. should i install a new water pump kit either way? thanks ahead of time for any advice you can give me.

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lukeb83 said:

so should i just put the new kit in and try it again?

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