Posted this question over on the Main Forum but apparently nobody visits that forum.

I have a 1987 Yamaha 30SH (2-stroke 3 Cyl) in excellent condition with a new stainless prop. Good compression & well-maintained. I was told at one time that these motors were valuable to the racing community for the ability to mod them but I have no idea. Can somebody help me with the value of this motor? Getting ready to sell it. Thanks