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  1. ***SAM***

    1969 Evinrude 25hp looses power at WOT

    Re: 1969 Evinrude 25hp looses power at WOT The screen was kind of crushed up and not really fit for service in my opinion. There was a build up of corrosion behind the screen, on the walls of the tube too. I very carefully drilled out the plug. It's just soft aluminum. Hopefully I'll slide in a...
  2. ***SAM***

    1969 Evinrude 25hp looses power at WOT

    Re: 1969 Evinrude 25hp looses power at WOT The saga continues... So the impeller was fine after all. I kind of knew it should be considering I changed it less than a year ago. The debris in thermostat must have been from a previous impeller or rubber grommet. When I pulled the lower unit I...
  3. ***SAM***

    1969 Evinrude 25hp looses power at WOT

    Re: 1969 Evinrude 25hp looses power at WOT I have another question regarding the thermostat. I removed the cap and cleaned it. Do I need to repaint the inside? Will zinc chromate be sufficient or does it need a heavy duty coating? I know the replacement cap is about $25 and comes pre-painted on...
  4. ***SAM***

    1969 Evinrude 25hp looses power at WOT

    Hello, My '69 Sporster has been running like a champ with just one or two people in my 15ft aluminum runabout. However, 4 of us went out this weekend and after 2-3 minutes at wide open we lost power. After idling/ cooling off for a while we could get back up on plane and cruise. Running wide...
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