Home › Forum › Ask A Member › Mercury KF-7 lightning – bottom cylinder drops out. › Reply To: Mercury KF-7 lightning – bottom cylinder drops out.


I found the picture of the seals. We took out the
plugs right after running it and didn’t see any
evidence of water on them. Something with
the seal is the only thing I could think of but not
having much experience with these I’m just
guessing. I appreciate your advice. Thanks so
much. It makes me feel that is the direction we
should be heading. I’m wondering if maybe
it has worked, or is working, its way out? I gave
this motor to a friend when I went back home in
2017. I just bought another this spring. A winter
Project to bring next year. They both need to be
running. We’re both geriatric delinquents. (He’s
68 and I’m 75) It’s going to be a lot of fun for us.
Our wives will just be embarrassed.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.