Have Boat Questions? Ask a Boat Repair Expert.
Hi Dan, my name is Jason.
All Mercurys are cataloged by serial number, can I start by getting that number so I know exactly which engine you have.
Got it. What is the history on this engine, have you ever personally seen it run correctly?
How old is the fuel in the tank?
There are 3 things that need to be done in order to try and isolate the problem. A compression test, a spark output test, and running it on a portable fuel tank filled with brand new fuel. Are you able to do those tests?
You would log into the website and then reply back here just like you have been.
When you say they have been done already, did you do the tests or somebody else?
Okay keep me posted