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  1. J

    1977 55hp evinrude HELP!!

    I have a 1977 55hp evinrude outboard on a 15ft bass boat. Last few times we took it out it will not go faster than 25mph. All previous times it was going around 31 mph or so. The rpm's have also gone from 5200 down to 4600 or so. What in the world would be causing this? I rebuilt the carbs but...
  2. J

    1977 55hp evinrude not reaching full power

    I have a 14ft. (fiber glass) bomber bass boat with a 1977 55hp evinrude. The boat has being going around 30 mph but, the past few times I have taken it out 25 mph is all it will do. The rpm was at 5200 going 30 mph but now the rpm is at 4600 or so. What is causing this? With this size motor...
  3. J

    idle to slow?

    Ok guys I have a 1977 Evinrude 55 hp. When I crank it up in the water with the warm up lever about half way up it will idle all day. When I lower the lever so I can put it in gear it will run for about 30 seconds and the idle will slow down until it sputters out and dies. It does the same...
  4. J

    idle trouble

    Hey guys, I am new to the forum. Tons of great info on here. I am new to outboard motors but not to turning wrenches so I have some mechanical knowledge. Ok here is my problem. I have a 1977 55hp Evinrude. I have taken the carbs apart 3 times and cleaned them with carb cleaner and small pieces...
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