Mercury Optimax 115, 135, 150, 175, DFI year 2000 and up service manual., Page 546Get this manual
Quality of the image is intentionally reduced!
LEFT HAND NON-RATCHETING
NOTE: Drain and Fill screws may be located on the starboard side of gearcase on later models2 Position clean drain pan under gear housing and remove "Fill" and "Vent" sc