DavesTractor
Elite Member
I've never seen a YMxx01, YMxx02, YMxx10, or YMxx20 without a water pump, although the YM1110 is a model I have not yet sold, and it may have the older style engine. Certainly the smaller YMxx00's do not have pumps. We mainly sell 3 and 4 cylinder Yanmars, so I am a little out of my area of expertise when speeking of the 2-cylinder models. Good comment about the percentage of anti-freeze. If it is too high, the collant will not cycle properly.