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  • M
    Mc Tool replied to the thread 1978 Mercury 70hp Worth Messing With?.
    the design of the plenum could have a bearing on the 120 deg intake pulses , being that one carb would be drawn on evenly its the...
  • jimmbo
    jimmbo replied to the thread 1987 evinrude 140hp E140tlcua.
    With a 4 inch drop in Pitch, it still won't go above 3000rpm. Even with a dead cylinder the revs would go up, with less pitch. I would...
  • jimmbo
    jimmbo replied to the thread 1978 Mercury 70hp Worth Messing With?.
    The problem with the 2 carbs for 3 cylinders is that a 3 cylinder has 120 degrees between inhalations in the induction systems. With...
  • M
    Mc Tool replied to the thread 1978 Mercury 70hp Worth Messing With?.
    Thanks jimmbo . Guess it what one is used to seeing , all the motorbikes I recall had one carb per pot , and then I saw some 2 strokes...
  • R
    Robobrainiac reacted to Lou C's post in the thread OMC 4.3 Electronic Ignition Swap with Like Like.
    set point gap, check with dwell meter, then set timing, then re-set idle speed about as simple as it gets old school tune up circa 1966...
  • McGR
    McGR replied to the thread Have a 76 Johnson 85v4 will a 85 power trim& tilt fit.
    The original factory t/t units for that vintage of OMC V4 are pretty hard to come by. While it was an available option, most V4 motors...
  • jimmbo
    jimmbo replied to the thread 1978 Mercury 70hp Worth Messing With?.
    It was that way because of the Design of the Reeds, Mercury had on their Production Inlines. In 76, merc did make a 650XS which had the...
  • jimmbo
    jimmbo replied to the thread Boat doesn't rise. Prop issue?.
    The 78 140 heads aren't too bad for compression, the tightest heads were on the 1973 135hp, but they are borderline on today's...
  • M
    MikeSchinlaub reacted to aspeck's post in the thread Random with Like Like.
    Wow! Someone actually read the rules! And it was a sock-puppet! Go figure! Now we have an enigma wrapped in a dilemma … we can’t ban...
  • aspeck
    aspeck reacted to flashback's post in the thread Random with Like Like.
    Gonna have to moderate the moderator.
  • M
    Mc Tool replied to the thread Random.
    Ha ha I bet Joe has to " substantiate his identity " after posting that avatar then 😂😂
  • M
    Mc Tool replied to the thread 1978 Mercury 70hp Worth Messing With?.
    Yeah ,Im thinkin the 2 carbs for 3 cylinders is a bit of a patch job using what was laying around at the time ....and probly same thing...
  • flashback
    flashback reacted to aspeck's post in the thread Random with Like Like.
    Wow! Someone actually read the rules! And it was a sock-puppet! Go figure! Now we have an enigma wrapped in a dilemma … we can’t ban...
  • flashback
    flashback replied to the thread Random.
    Gonna have to moderate the moderator.
  • aspeck
    aspeck replied to the thread Random.
    Wow! Someone actually read the rules! And it was a sock-puppet! Go figure! Now we have an enigma wrapped in a dilemma … we can’t ban...
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