Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 84Get this manual
Starter Motor Removal
2Press down the pinion stopper and remove the circlip Remove the pinion
Always di sconnect the battery and remove spark plug leads from spark plugs before working on
motor1Disconnect battery leads from battery 2Remove boltsRemove starteraPinion
b Pinion Stopper
cCirclip (discard and use new circlip on assembly)
3Pull armature from starter frameRemove lock nut4Remove components from armature