Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 168Get this manual
1998 Model
FUEL INJECTOR INSTALLATION
1Insert fuel nozzle with orifice facing direct injector opening1997 Model
56124Fuel InjectorO-Rings
5An ohm test of the fuel injector may be made by connecting test leads to injector terminalsOhm reading should be 1.8 0.1 ohm