I have a 150 merc:V 6 1992 i just got it. The guy I got it from said that in idle it would run rough, after he had the trigger replaced. By cross referencing I found the triggers were the same.Looking in the manual I found that he may have wired it wrong. Looking in the manual it shows on two different schematics one for my 150HP and one for a 200hp, the 150hp schematic the colored sleeves did not show up .But on the 200hp and up the wires in the yellow sleeve should be wired up to the front switch box and the black should be wired to the rear switch box. Wiring the trigger wrong make it run rough and does it mater with the 150hp. Thank you Roger
