Originally Posted by stl32
What did the boat have on it before?
I would start running some vacuum and pressure tests on the fuel systems.
Leakdown test this early, seems excessive, but, a decarb is good. Oil change and stuff has to happen after a decarb.
Always good to run the engines out after trolling for long periods of time, and let them cool down after before shutting off.
I would certainly run some pressure and vacuum test.