1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 37Get this manual

1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 37

GENERAL INFORMATION
6Install forward thrust hub, propeller, rear thrust hub and propeller nut onto the shaft
aForward thrust hubPropellerRear thrust hubPropeller nut 7Place block of wood between gear case and propeller and tighten propeller nut