This is what I found when Googling. Note the transmission - probably a Kanzaki KM2P. common prop is a 13 x 10.
[FONT=Arial, Helvetica, sans-serif]Yanmar[/FONT][FONT=Arial, Helvetica, sans-serif]1GM10 [/FONT][FONT=Arial, Helvetica, sans-serif]9hp@3600[/FONT][FONT=Arial, Helvetica, sans-serif] (2.62:1[/FONT][FONT=Arial, Helvetica, sans-serif]) [/FONT][FONT=Arial, Helvetica, sans-serif]13x10[/FONT]