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  1. 1

    Serial # for Johnson 140

    I was told by the seller that the motor on my boat is a 1992 Johnson 140 ..which is says on the cover...the powerhead was rebuilt a year ago but ther is no serial# tag anywhere but the "freeze plug" has 231021 stamped on it ...is this it?
  2. 1

    1992 140 Johnson intermitent power loss

    I have a 1992 Johnson 140.. _sometimes on excelleration it doesn't hit on all four .then it will catch up. Sometimes when at cruising speed it will begin to loose rpm and skip ...if i back off to 4K rpm it smooths out..then I can put the juice to it and it will go to 5200 just fine..the skipping...
  3. 1

    93 octane in a '92 /140

    I recently bought my 19'6" Aquasport with a 1992 Johnson 140...seller claimed recently rebuilt..he said run 93 octane...I've run about 30 gallons thru it.It has a 50 gallon enclosed tank. Manf. says use 87 octane <br />1. should I begin using 87?<br />2. Am I doing damage if I burn the rest of...
  4. 1

    140 Johnson skipping on excelleration

    It just started yesterday... after 1/2 hour..when I give it full throttle it skips /like it's hitting on two or three...then it clears out and runs ok... i smell more gas than usual around engine cowl but no sight of leaking gas.it was a bit more difficult to start than normal but idles ok
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