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  1. R

    Evinrude 40hk -90 reverse problem.

    Your model number tells me it is a short shaft.----Did you measure this with gearcase in neutral ?
  2. R

    Evinrude 40hk -90 reverse problem.

    Just stop-----The correct shift shaft height for your 1990 model is 21 15/16 for long shaft and 16 15/16 ( 430 mm ) for short shaft.------Are you measuring this in neutral ?-----Make sure you get this right.----These gearcases are not robust and mistakes are expensive.---And finding a used short...
  3. R

    Evinrude 40hk -90 reverse problem.

    21 15/16" is the measurement !----And how are you measuring this ?----Set at 557 mm for long shaft.
  4. R

    how do you run an OMC TUFM-21C out of the water?

    I do not believe Chrysler was ever used in OMC sterndrive units.----But there may be an exception.
  5. R

    1989 Mercury 115 fuel/air issue

    Fact-----The primer bulb does not stay hard when motor is running.-----And it does not need to be hard right after motor starts.----Bulb does nothing when motor is running.----You are pushing the key in and holding it in for cold starting ??----Does spark jump a gap of 3/8" on all leads , yes or...
  6. R

    1989 Mercury 115 fuel/air issue

    Did you install a new water pump impeller.----That is always recommended on a used purchase.-----This motor only idles on the top 2 cylinders.---Bottom 2 carburetors kick in at about 1800 RPM.----Has oil injection system been checked ?----Post the compression numbers here.-----Does spark jump a...
  7. R

    Motor turns over but won’t start

    If it is a 60 degree looper motor there is no flywheel key !----Model # of the motor ?
  8. R

    1977 evenrude 85 hp ignition problem

    Hard to have 4 bad coils.---Take black / yellow stripe wire off the pack and check for spark.------Charge the battery and have battery load tested.----Take starter apart for inspection and ohm check on armature.-----No $$$ spent to do that.----You test charge coils and sensor coils .----They are...
  9. R

    loss of power , running rough '99 Suzuki/Evinrude 40hp 4 stroke

    High pressure pump is inside the vapor separator tank.
  10. R

    10r77a rich lean adjust

    Why would it be hard to find the parts??----The lower unit from a 74 model will fit on a 2005 model.----Slight difference internally but it fits.
  11. R

    1972 Johnson 25 HP no spark

    No such thing as a 1972 model that runs backwards.-----Starter was assembled wrong or battery hooked up backwards.
  12. R

    Help this rookie Read Timing

    No----Beyond my pay scale !
  13. R

    Help this rookie Read Timing

    ----Piece of 1/4" flat bar and drill some holes.-----Use those holes in the hub.----Simple I think
  14. R

    Help this rookie Read Timing

    About $20 on E-bay
  15. R

    Help this rookie Read Timing

    Rust / stain marks on the hub and marks under the flex plate appear very distinct.----Should be able to use them.----Look on E-bay for the correct puller.
  16. R

    loss of power , running rough '99 Suzuki/Evinrude 40hp 4 stroke

    I find at least 2 filters on these.-------I would look into the vapor separator.----Clean the tank and check float and float valve in there.-----Check IAC valve.
  17. R

    Help this rookie Read Timing

    A shop would pull the whole works off with the correct puller.---Uses the threads inside the hub.-----No chance of getting anything lined up wrong that way.-----Have you used the stain / rust marks to get the flexplate back in the original position ?
  18. R

    Mercury 115hp

    Likely used at factory to check water pressure.----Can be used to install a gauge.
  19. R

    Vintage Mercury Cooling Issue

    Running on 1 cylinder.----First thing to do is a spark check.
  20. R

    loss of power , running rough '99 Suzuki/Evinrude 40hp 4 stroke

    Water pump impeller replaced ?-----What did the old plugs look like ?-----Oil level OK ? Replaced fuel filters ( 3 of them I think ) on this motor.-----Valve clearance checked ?----Did you hit something with the motor?
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