What size motor needs a transom saver?
Most transom savers can support up to a 150HP motor, which is sufficient for most regular boats.
Does a 9.9 Need a transom saver?
The manual for my Suzuki 9.9 with a similar weight to your motor says that a transom saver isn’t necessary if you can trailer the boat with the motor in the full down position. No..
Should I leave my outboard motor up or down?
The best way is to either leave the motor on the boat or on an engine stand in an upright position, not tilted. If neither of these are an option, try to make sure that the engine is in an upright, self-draining position. If you can’t do this, be sure that the cooling system is drained completely.