Does anyone know where the fuse on a 1996 150 mercury offshore black max fuse is?

[Natebort]

Having electrical problems and thinking it’s the fuse but can’t find it 0G230698 is my serial number please help!

 

[QBhoy]

My older 150 black max has main fuse (that’s poorly conducting and can often stop it starting) on the starboard side of the engine (under the cover).