All I/O engines are standard rotation left hand when seen from the flywheel
To clear up Bondo, the prop turns to the right not the engine
The gear ratio should be 1.84-1
What is happening when you have a hot battery with clean battery cables on BOTH ends of the cables. Click/crunch or nothing?
Does the drive have oil. in it or water. It could be seized
Agree, drain and remove the riser, drill and tap for 1/4 inch pipe using the correct drill bit.
If not needed to drain it ,replace with brass allen head plug for clearance
With a new replacement gear set they want you to remove the small spacer and use rolling torque method, I just reuse the small spacer and just torque the nut down . Never had an issue