Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 61Get this manual
8 Place springs and brushes into brush holder and hold in place with brush retainer tool
STARTER SOLENOID TESTDisconnect all wires from solenoidUse an ohmmeter (R x1 scale) and connect metel leads between solenoid terminals and 2Connect 12-volt power supply between solenoid ter minals and 4Solenoid should click and metershoulc read ohms (full continuity)3If meter does not read ohms (full continuity), replace solenoid