Redo the fuel line or at the very least check all fittings at connections.
What size / make motor? VRO / fuel pump?
I was having fuel related trouble on my old 50 hp Johnson and pulled the VRO fuel pump (oil injection had been deactivated for years) and put a $35.00 diaphragm pump. Runs like a top now.
Listen to your elders. Not because they are always right but because they have more experiences of being wrong.
"We make a living by what we get, we make a life by what we give" Sir Winston Churchill
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