04 Johnson 175 stalls on idol "sometimes"

[Soup1K9]

I have a 2004 Johnson 175. Last year I had all 6 carb bowls replaced due to 4 of the 6 cracked. She got new carb kits, plugs, and a tune-up done. After this she ran awesome until last month.

The boat runs like a champ in any position except in idle. Water press is good. It usually stalls in idle after it has been running a bit. But it doesn't stall all the time in idle. May stall 2-3 times on an 8 hour day. Has been getting worse.

I just replaced the fuel/water separator filter and next I will change the plugs. Any suggestions before I "B.O.A.T" ?

Thanks

[Soup1K9]

Found out it was my primer bulb. It went bad and was allowing fuel to go back to the tank.

[ChampioNman]

Good deal those pesky check valves sometimes stick.