89 Johnson V4 120 HP Question

[rrichar1]

I have a 1982 Wellcraft 18 Fisherman center console with a 1989 V4 120 HP J120TLAE that had a ring job (?), new fuel pump and other stuff done to it and it runs great provided I have good clean gas. I obviously have an original fuel tank that we tried to patch but it still has a leak / contaminants in it as it has issues when I run it off that but runs fine on a portable 12 gallon tank. I will eventually replace it, hopefully this winter.

My question about the Johnson is: It runs great after it's warmed up but after coming back in and going a mile or more at no wake speed it seems to die consistently after I take it out of gear when I'm on my final approach to the dock. It always starts back up so it's not a big deal. But I'm wondering if we just need to adjust the idling again and make it faster?

And can somebody give me there opinions on this motor? It seems to have a good reputation as far as reliability and it's practically a brand new motor. But I'm used to a rice burner Nissan/Tohatsu on my other boat and that I have never had an issue with (other than carb cleaning / impeller) and it's rock solid.