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  1. R

    1990 Force 120HP #2 Cyl zero compression and upon opening piston shows damage

    Well---3.375 " is the BORE size and a new PISTON might measure 3.365" near the ring lands.-----I think I am going to step aside here.----This is going nowhere.
  2. R

    1990 Force 120HP #2 Cyl zero compression and upon opening piston shows damage

    Measure the #2 piston near the piston rings.----Will likely be around 3.365"------A standard piston in #2 will not last long !!!----Just will not run properly.----Find a good used block on E-bay ????
  3. R

    1990 Force 120HP #2 Cyl zero compression and upon opening piston shows damage

    There is no way you can run a standard piston in #2 cylinder.----Needs to be bored and an O/S piston / rings fitted.
  4. R

    1972 Evinrude 50hp selectric

    Disconnect black wire with yellow stripe at the CDI / powerpack.----Test for spark.
  5. R

    1980 15hp Sea King by Chrysler Carb float needle and seat

    That needle and seat was also used on Tecumseh snowblower engines.---Did mine last fall.
  6. R

    Yamaha 25hp outboard

    They plug with weeds and dirt.----Clean the hose and fitting.
  7. R

    1973 65hp starting question

    Compression at 110 PSI is considered low.----Perhaps test with another gauge.
  8. R

    1973 65hp starting question

    It is NOT really automatic !!-----When it left the factory the choke would come on part way when key was turned on.----Operator still had to understand that toggle switch was to be operated for full choke.----When motor warmed the " automatic " part would kick off.----Since we cannot see your 50...
  9. R

    1973 65hp starting question

    Need to find the wire in that control to operate the electric choke.----Used controls with the red plug are quite plentiful.------After you evaluate this motor , compression test.-----Install a new water pump impeller.----If motor is a keeper , look for a control box.
  10. R

    1972 Evinrude 50hp selectric

    Just to add ----your control box and motor must have that yellow plug.-----And 12 volts is only needed to crank it over and provide power for shifting.-----The magneto produces the spart and does not use 12 volts to do that.
  11. R

    Evinrude 25 Project - Rocky Start

    1977 to the end of production for the electric start.
  12. R

    Evinrude 25 Project - Rocky Start

    Look for some arrows to line up.----And look for electric start kit.
  13. R

    78 Johnson 115 V4 running issue

    The pump operates with a PRESSURE pulse from the #3 or the # 4 crankcase.---No device in that hole.------The crossflow motors all suffer from BROKEN piston rings.-----Post your actual cylinder compression values.----If those are around 120 PSI or better check for spark jumping a gap of at least...
  14. R

    98 evinrude DI 90hp

    Your location ?
  15. R

    Evinrude 25 Project - Rocky Start

    Is / was the rope properly timed on the recoil ???-----Confused you say ?----Take a good look at the rope sheave.-----It was a simple concept developed like 60 years ago.-----Sheave is elliptical and gives a common man a mechanical advantage against compression.----That is if it is set up correctly.
  16. R

    Popping and revving?

    Is item #7 in place.-----I think you need to put the boat into the lake and test run.----I think throttle plates are open too early.----If that is the case the idle circuit in the carburetors does NOT work.
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    98 evinrude DI 90hp

    Stop----Do not spend any beer tokens at this time.----Well ,---if he ran it on premix you need to post your actual numbers.-----Fuel does not go through the crankcase like a conventional 2 stroke.-----It would have starved the bearings of oil !---Cylinders would have suffered too.-----If he ran...
  18. R

    1999 Johnson 115 Fuel Leak from “vapor pump”

    Well----If you scan the instructions you will see it talks about servicing the vapor pump !
  19. R

    How to take out rounded drain plug on force 85? Is there a way to drain without taking it out? Like pumping out the fluid maybe?

    Most folks use an impact driver with " drag link " socket .----The kind you hit with a hammer.----Use a small center puck and hammer.----It will spin out.
  20. R

    Unknown year

    A 1985 model.-----If you just bought it , do a compression test for future reference.----Install a new impeller before launching the boat.
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