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  1. R

    1974 Evinrude 25hp wont run.

    Correct , that is the one.
  2. R

    1974 Evinrude 25hp wont run.

    Where is the gasket that goes around the nozzle?-----Fuel must all come through the high speed jet.----That item is hidden inside the carburetor bowl.-----When throttle plate is closed there is still a calibrated amount of air and fuel allowed into the engine.-----It must be so , since an idling...
  3. R

    1974 Evinrude 25hp wont run.

    The fixture is identical looking to earlier ones.----I believe key way is changed by 180 degrees.----I have misplaced my fixtures and use the flywheel. ---As you know those fixtures are a " dummy flywheel " and a shop time saver.
  4. R

    96 Johnson 150 v6 not idling

    Checked carburetor bowls for warpage ?-----
  5. R

    1991 evinrude outboard is this normal?

    It had a thermostat when it left the factory !!----Why afraid of adjusting the idle mix ?----It was put there for the owner to adjust to compensate for fuel quality and local atmospheric conditions !-----And no the low speed mixture has noting to do with damaging the motor.----Lean damage has...
  6. R

    1974 Evinrude 25hp wont run.

    No I am not.----I believe bottom becomes top , and top becomes bottom if you use the earlier ( 1970 ) fixture.
  7. R

    1991 evinrude outboard is this normal?

    Thermostat in place and working properly ?-----Try running with cowling off.----Try leaning out low speed mixture.
  8. R

    1974 Evinrude 25hp wont run.

    We are now at post #69 and counting.------Idle issues are not always carburetor related.---And this carburetor has been cleaned a few times.------I am thinking there is an issue with crankcase compression.-----Not easy for a novice to diagnose.----Sorry ,----some inspection needs to be...
  9. R

    1976 evinrude 35

    Would require a different flywheel I think.
  10. R

    engine beep

    If bulb is flat you have a restriction in your fuel supply.-----There is a vacuum switch that alarms for this.----Check tank venting.----Check pick up screen,.----Anti syphon valve , if equipped with that.
  11. R

    1989 Mercury Black Max 150hp outboard Motor Problem

    Answer some questions.-----How did it run for you last season ?----Have you installed a new water pump impeller ?----Compression test results to be posted.-----Spark must jump a gap of 3/8" on all leads.-----If boat sat for any length of time the carburetors could be plugged.----Water in the...
  12. R

    Is 17ft long enough for a tournament bass boat?

    If you catch the biggest mess fish out of a 12' aluminum , would you be disqualified from the tournament ??
  13. R

    1974 Johnson 25 hp backfire issue and other

    The gauge shows the compression.-----Holding the gauge there would show you nothing as the gauge captures the pressure.----The gauge has a check valve.-----These motors are a simple , 2 stage air pumping machine.-----Air / fuel / oil mix is drawn into the crankcase.------That is first compressed...
  14. R

    When an outboard is "hard to start" what is usually the cause and what is the solution

    Perhaps google ----LEL and UEL----For gasoline to get a better understanding of " flooding " of any motor.
  15. R

    When an outboard is "hard to start" what is usually the cause and what is the solution

    When that 1998 motor does not start in 5 pulls there is something wrong.------#1 on the list today is it was flooded !.------CDI units do not " start to fail "-----They go phooofff like a light bulb.-----Do the usual trouble shooting for hard to start condition.-------leroysramblings ----May...
  16. R

    115 mercury

    The usual trouble shooting needs to be done.-----And it could be as simple as water in the fuel.-----Without some simple trouble shooting you will be guessing as to what the issue is.
  17. R

    115 mercury

    Some of the 4 cylinder Mercury motors only run on the top 2 cylinders below about 1800 RPM.-----The bottom 2 carburetors kick in at around 1800 RPM.-----No fuel for ignition on bottom 2 cylinders.-----Spark is there all the time.--
  18. R

    115 mercury

    A switch box is about $300 or so.-----What trouble shooting has been done ?
  19. R

    Evinrude 8hp lower unit seals

    Post #5 says-----pure water comes out before any water----?????
  20. R

    Evinrude 8hp lower unit seals

    Water would come out before the oil.
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