panthers06232
New member
I have what I believe to be a late 80s mariner 20hp longshaft manual start engine. The motor will start cold most of the time sometimes it doesn't. I have had it on the lake a few times stats up runs great then wont start when it is warm. I have rebuilt the old carb same problems so I ordered a new carb and out it on same issues. So I dont believe the carb is my problem could be not 100 percent on that. The motor even when it was running good would shake a little at idle. Where do I go from here im going to give it a compression test when I get home will post results of that later on tonight.