Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 19Get this manual
2Remove the spark plug leads to prevent engine from starting 6Coat the propeller shaft with Quicksilver AntiCorrosion Grease or 2-4-C Marine Lubricant with Teflon
[aPropeller Shaft
3Straighten the bent tabs on the propeller nut retainer
IMPORTANT: To prevent the propeller hub from corroding and seizing to the propeller shaft, especially in salt water, always apply coat of the recommended lubricant to the entire propeller shaft at the recommended maintenance intervals and also each time the propeller is removed
7Flo-Torgue Drive Hub PropellersInstall forward thrust hub (a), propeller (b), propeller nut retainer (c) and propeller nut (d) onto the shaft