Search results

  1. G

    Spark advance causing engine to bog

    I have a 76 140 horse evinrude that seems to have a mechanical problem with the spark advance when I throttle up. I have a Clymer's outbord shop manual but it doesn't go into much detail about the linkage so some of my terminology may not be exactly right. First, when I throttle up the spark...
  2. G

    78 140 evinrude shaft length

    Is there any way to tell whether I have a 25" or 20' shaft on my engine without dropping the lower unit
  3. G

    carbon build up on pistons

    I had my spark plugs out working on another problem and while they were out I checked each piston and it seems like there is a lot of carbon build up on all of them. I have a 78 evinrude140 and I know that evinrude makes an additive for the gas that is supposed to help clean them up. do these...
  4. G

    78 evinrude140 ran good one day wouldn't turn over the next

    I have a 78 140 horse evinrude that was running fine until yesterday. Now when I try to start it only cranks about a quarter turn and stops. never had any knocks in engine and was running great the day before. Got in a little mud, but shut engine down and walk boat out to deeper water before...
  5. G

    78 140 horse evinrude bogs down after running

    I have a "78" 140 horse evinrude that is starting to progressively have problems attaining higher rpms. The summer started and the engine ran great. I could run, shut down, start up and go. now after running for awhile and shutting the engine off I am unable to throttle up without the engine...
  6. G

    evinrude model and year

    I bought an older evinrude last year and was told I have a 1978 140 horse evinrude. When I went to buy new ignition coils for a 1978 they were the wrong ones, but the 1977 ignition coils were the correct ones. Could someone clarify the correct model aand year that I have. Mod# 140843C ser#...
Top