I have a 1990 Yamaha 25 hp two stroke engine that I can part out. I got the parts I needed from it and can sell the rest.
Parts fit many Yamaha and Mariner motors with 2 cylinders. Many parts are interchangeable with 20, 30 and 40 hp motors. As an example many parts interchange with the 689 model motors.
Still have:
Pull start assembly $55
Electric start parts for conversion (starter, starter bracket, starter solenoid, starter solenoid bracket, wiring harness, generator coils, and flywheel) $250
Carburetor $100
Cowling $140
Other parts... just ask, or make an offer on what you need.