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  1. J

    '87 Mercury can't find full throttle - fuel issue?

    Hey guys, After a much needed basic tuneup - new spark plugs, fuel filter, plug wires - which I hoped would possibly fix my old problem - no luck. My engine is a 35 hp 1987 Merc. I cannot get the thing to full power when on the water. When I rev it up full without the engine in gear it revs up...
  2. J

    How do I remove the lower cowling of a 35 hp mercury

    Hello, I have a 1987 35 HP Mercury outboard. I want to remove the whole bottom cowling unit as it is filled with grease, oil, tree droppings, various lost screws/bolts from over the years, as well as to gain better access to the carb so I can fix the choke assembly. What is the best way to go...
  3. J

    Engine not running at full - suggestions?

    Hi all, I have a 1987 35hp 2 cylinder Merc outboard. The last time I took the boat out the engine would not get up to full power. I'd reach about two thirds and it would feel like it would be trying to get up to full but would instantly cut back, it felt like the second cylinder would be...
  4. J

    1987 Mercury 35hp Issues - Help!

    Hi everyone, For a while now I've been experiencing issues with my 1987 Mercury outboard. It's a 35hp, electric start. Here's the problem. 9 out of 10 times when I take the boat out, the motor will start up and will only be running on 1 cylinder. After about 15-20 minutes, the 2nd cylinder will...
  5. J

    35hp 1987, 1 cylinder working

    Hi, I have a 1987 Marvac 14 foot boat with a 1987 35hp oil injected Mercury outboard, 2 cylinders. The motor seems to run fine, but when it starts up in the water only 1 of the 2 cylinders is running. After about 10 minutes or so of running the boat in the water (at half speed of course) the...
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