I'm going to buy Mercury 15 (2002+ I belive).
What I have to pay attention to first?
What problems are typical to this outboard?
Where is "stone under water"?
I hope that GURU from this forum will open my eyes.
The first attention you give it is to read the owners manual. The engine is a pretty trouble free unit.
I would guess that a "stone under water" is a submerged stone.