2 years ago I repowered my Whaler with a 75 Optimax,( 1.5 L, same as 90/115HP ) replacing the original 1970 , 70 HP Merc. I troll with it for hours on end with no problem, smooth and quiet, I too add Marine Stabil to every tank of gas and have had no problems to date. I passed on the 4 strokes, too many moving parts , Good luck
Mercury optimax - opinions wanted
in This Old Boat
Posted
2 years ago I repowered my Whaler with a 75 Optimax,( 1.5 L, same as 90/115HP ) replacing the original 1970 , 70 HP Merc. I troll with it for hours on end with no problem, smooth and quiet, I too add Marine Stabil to every tank of gas and have had no problems to date. I passed on the 4 strokes, too many moving parts , Good luck