Hello newbie here. I purchased a boat with a 40hp oil injected Mariner. The serial states it's a 40EO. Not sure if it is a Mercury or Yamaha so this post may be in the wrong section. I believe the year of the motor is a 1986 since I have the original manual.
I have some questions. First off the lower cylinder seems to have low compression. I haven't had a compression test but you can feel it isn't as healthy as the one on the top. Are these motors worth rebuilding? It's missing the starter and the oil injection is out of it so it's being ran on a mixed fuel/oil. Any leads on parts?
Thanks ahead
I have some questions. First off the lower cylinder seems to have low compression. I haven't had a compression test but you can feel it isn't as healthy as the one on the top. Are these motors worth rebuilding? It's missing the starter and the oil injection is out of it so it's being ran on a mixed fuel/oil. Any leads on parts?
Thanks ahead