I have a M 20 well running but not rebuilt kubota 16 hp fresh water cooled universal diesel to install in my vega I bought recently for our sailing program. I have the chance to instead buy and install a gm 13 hp yanmar diesel from a friend to put in the boat. Pros and cons of each motor installing and maintaining in a Vega? I certainly am on a very tight budget and have not funds to rebuild either one, but know both run well. Which is the more durable motor/ The good news on the Kubota is that I can buy Kubota tractor engine parts for it. The plus on the yanmar is its parts network . Any other thoughts? Thanks