Not sure if this is the right forum. I really don't have a problem, just a question. I am currently looking at a 1993 Chaparral 2360 for $7000. The boat is absolutely perfect. The engine has recently been rebuilt and only has 60 hrs. My problem is this: all parts mounted on the motor have been changed from the original yamaha to merc. The trim pump and hoses have also been changed to merc. From what I understand, this is great; however, the stern drive is still yamaha. I know very little about I/O's (currently own merc outboard). Is this still a problem if just the stern drive is yamaha? I understand that parts are unavailable for most yamaha I/O's, but half of the motor has been converted to merc (not 100% sure what this means). It doesn't seem to me as if there are many things to go wrong in just the outdrive. Please let me know if I am incorrect in this assumption. In all, the boat is perfect other than the crappy yamaha outdrive.