Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 167Get this manual
2Gently pry up on injector to loosen o-ring adhesion and remove injector1997 Model
31997 Models OnlyRemove fuel nozzle from fuel railNOTE: Move nozzle with small tip screwdriver, then tap fuel rail on hard surface to dislodge nozzleOn 1998 models, the fuel injector is positioned differently on the fuel rail and separate fuel nozzles are not required