HRalston
Well-known member
I bought a 2004 Nissa 25 HP outboard yesterday and the guy who sold it to me said he had read about converting this motor to a 30 HP. I did a little reading (see link below) and it seems pretty simple- there is a restrictive gasket that limits the flow of fuel into the carb, removing this will allow more fuel to the carb and produce more power. You also have to make a small adjustment to the timing and throttle, but it doesn't seem very complicated.
I am not a mechanic by any means, but I would like to look into this. Has anyone here ever done this? https://forums.iboats.com/honda-tohatsu-nissan-outboards/nissan-25-hp-increase-30-hp-restrictor-plate-157063.html
I am not a mechanic by any means, but I would like to look into this. Has anyone here ever done this? https://forums.iboats.com/honda-tohatsu-nissan-outboards/nissan-25-hp-increase-30-hp-restrictor-plate-157063.html