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  1. J

    intermittent strange problem

    ok 1981 Johnson 70 when we went to buy the boat 4 weeks ago and test drove it there was a problem. you would get on the throttle wide open and it wouldn't go over 3000 rpms and there seemed to be fuel coming out from the intake area. the guy that owned the boat at the time said it had...
  2. J

    should this boat go faster?

    1981 Johnson 70 on a 16' fiberglass boat with open bow 4 people full throttle on the gps was showing 43kms whis is only 26 mph also taking off takes about 15 seconds to get to full rpm. I haven't hooked up a tach yet to see the rpms at full throttle. also the bottom of the boat has a brown...
  3. J

    oil mixture - is a bit more a big deal?

    our 81 johnson 70 requires 50:1 fuel/oil ratio our tanks hold 23 litres of fuel and we are mixing 500ml. for 23 litres it should be 460ml.
  4. J

    suzukit dt140

    I have a suzukit dt140.. not sure what year. we bought the boat with a seized engine and thought we could get it rebuilt but the block has a hole in it. the previous owner had put it in the water too early in the spring and when a big strom came it sunk the bank end of the boat. he pulled it...
  5. J

    1981 Johnson 70 power issues

    model j70elcim when we went to test drive it before buying.. the engine started right up and idle fine. at full throttle in gear the rpms would stay low and barely be moving. the previous owner told us that it had done that a few years before and it was just the carbs that needed cleaning...
  6. J

    tach installation /speedo question

    I will be removing a tach and speedo from another boat. I want to install it to work with my 1981 johson 70hp. does anyone know where the tach wire hooks up on this engine? as for the speedo the sensor appears to be broken. can I buy just the speed sensor? does it have to match the speedo...
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