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    1977 115 HP Misfire (Power Pack)

    Motor Specs: 1977, 115 HP, 4 cyl. Johnson. Single power pack.<br /><br />Symptom: First there was a weak spark at cyl. #3 and now there is no spark at cyl. #3.<br /><br />Tried so far (Result): <br />(i) Checked and cleaned all the grounds. (Result-No change).<br /><br />(ii) Switched the...
  2. W

    77 115 hp, no power

    Motor Specs: I have a 1977 115 Johnson V-4.<br /><br />Symptoms: Starts and idles well but would begin to lose power after warm up (WOT = 5500 if I remember correctly, since its been awhile since I was able to get it on plane).<br /><br />Compression: Cold (warm) compression is 130 (125) in...
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