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  1. J

    Problems with 1978 Johnson 150 v6 seahorse

    Well to start I recently purchase this motor/boat. I took it out twice and the second time out it dies on me & the wife. We ran down river 5 or 6 miles flat out no problems at all, stopped anchored for an hour or so. The we ran back up river 3 to 4 miles suddenly the motor just lost all...
  2. J

    Johnson 150 sudden loss of power

    I have a 78 150 Johnson this past weekend I ran about 4-5 miles down river with no stops Motor ran great. On the return trip after 2 1/2 to 3 miles back up river the engine gradually slows down to idle speed with out me touching the throttle. It would never get over idle speed, I checked the...
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