Yes I do have a good condition 85 hp gearbox, recently removed the retaining nut and carrier and fitted new prop shaft seals, carrier o ring and a new nut. They crack due to corrosion between the threads of the casing and nut and the carrier expanding so I always do the above on any Yam I own.
The 85 never came with a flywheel cover it always had an exposed flywheel - the only protection you get is the metal cap enclosing the starter gear. I have a 90hp one if you do want one along with the mounting brackets.
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