I use Moeller zinc dichromate primer (rattle can)
Followed by an epoxy primer (touchup gun) and then base coat and a final coat of clear
I do not moore my boat, those that do can comment on layers of bottom paint.
I have a cheap clear tub/tote thingy with a lid and 2 layers of the blue shop towels on the bottom
I keep grease guns and funnels in the same tote
I simply wipe out the funnels and toss them in the tote and close the lid.
I dont think the gasket is available from Yamaha anymore. Yamaha pretty much got sued for blatantly copying other outdrive companies and quit selling in the US about the time your boat was made in the early 90s. most of the parts have been NLA for about 10-15 years
there is no way to install it without pulling the motor, unless you cut it up into 3 pieces, then weld it back together underneath and behind the motor..
Captains call means you have actuators and can switch between thru-hull and thru-leg for the exhaust
Do you have actuators?
Can you add actuators?
Could just add turn down tips