I need help on how to properly remove the lower unit? I have looked everywhere online for instructions on how to remove my lower unit.
Hi It is almost exactly the same as my 84 6hp. but you do do not say exactly which version you have ( standard shaft, long shaft or Yachtwin)
Probably best to drain the oil first ( I dont bother ) No need to worry about the shift shaft ( its all one piece slides out of the gear at the top) and it does not really matter which gear it is in.
If it's a standard shaft model remove the two bolts from underneath and the one at the front from the top. and pull the unit off.
If its a long shaft model remove the bolts that secure the extension to the exhaust housing, rather than the bolts between the gearcase and the extension, pull the unit off c/w extension then clean up the drive shaft and remove the extension.
When rebuilding fit the extension to the exhaust housing, then fit the gearcase.
Reassembly is a bit of a fiddle to ensure that the water tube enters the water pump grommet and the shift shaft enters the gear at the top.
With plugs removed turn the flywheel ( or with it in gear turn the prop) until the splines in the crankshaft and the drive shaft engage with each other and the unit slides home.