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    Power Trim/tilt issue on 77 Johnson

    I have a 77 Johnson 140 that will trim up but not down. I had a problem with a bad o-ring on the manual release valve, so I replaced it and I recently drained the fluid and replaced it, and it will trim up beautifully but not down. The motor runs and it looks like it attempts to go down but...
  2. S

    Power trim/tilt issue on 77 Johnson

    I have a 77 Johnson 140 that will trim up but not down. I had a problem with a bad o-ring on the manual release valve, so I replaced it and I recently drained the fluid and replaced it, and it will trim up beautifully but not down. The motor runs and it looks like it attempts to go down but...
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    Compression on 77 Johnson 140hp

    I recently purchased a boat (pick up next week) that has a 77 Johnson 140hp outboard on it. The owner sold it to me for a steal as he was told it ran great by the last owner and in reality it doesn't. I am a good auto mechanic but am unsure of two stroke motors. He said that it will start and...
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