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  1. R

    40hp vs 50hp looper pistons and rods. Scratching my head!

    How did you determine that the 2 cylinder and 3 cylinder use the same rods ??----Me just curious is all.
  2. R

    40hp vs 50hp looper pistons and rods. Scratching my head!

    And why do you say the bore size is different ??----The 56 cube 3 cylinder might have the same bore as the 2 cylinder looper for many years !
  3. R

    40hp vs 50hp looper pistons and rods. Scratching my head!

    Why do you say about the cut out ----" letting more exhaust volume out "----There is no exhaust in the crankcase !
  4. R

    1991 johnson 90 V4 High idle issue

    Yes 110 % sure there is a port just ahead of the starter motor.----Remove plug ( item #9 ) that is in the pressure port.----Mount the pump with 2 screws ( 10-24 ) and a gasket.----Or come over I show you how easy it is.
  5. R

    What did I do wrong with Transom?

    Visit -----boat building candy stores.------noah's-------Compositescanada----And I am sure many more for information on quality boat building materials.
  6. R

    Max Horsepower Rating Interpretation

    If you plan on keeping the boat then go with composite materials.-----If you go boating on a wee pond ( warm water ) with hundreds of helpers around then you can cut corners.-------If you go boating in the middle of nowhere use the best materials !-----Saw a boat sink in Lake Huron.-----Folks...
  7. R

    1991 johnson 90 V4 High idle issue

    Pictures in post #12 and 13 are your motor or something else ??----Did you confirm key on your motor is sheared at this time , yes or no ?
  8. R

    1991 johnson 90 V4 High idle issue

    A sheared flywheel key was suggested in post #2 in this saga.
  9. R

    1991 johnson 90 V4 High idle issue

    See post #2 ?
  10. R

    flywheel removal

    ????-----The smaller motors used 1/4-20 all day long !!----The universal OMC puller has different bolts for different motors and motor parts.----Have 3 of those pullers here.
  11. R

    flywheel removal

    Try 1/4-20.-------That has been standard thread on small OMC motors for about 50 years or so.-----Perhaps someone molested these holes ?
  12. R

    1991 johnson 90 V4 High idle issue

    How did you confirm that flywheel key is OK ???-----Is the flywheel nut torqued to 102.5 FT-LBS at this moment ?----I always encourage owners of these motors to do a compression test for future reference.------Post your numbers.
  13. R

    1985 Mercury 50 HP 4 cylinder runs very boggy

    Serial # of this motor ?---Does spark jump a gap of 3/8" on all leads ?-----Run with timing light hooked up.----See what happens to spark when motor falters.
  14. R

    flywheel removal

    They are 1/4-20.----Flywheel hubs are stretched over the crankshaft taper.----They do not come off easily.----The right technique must be used.
  15. R

    1991 johnson 90 V4 High idle issue

    I do not believe the fuel pump or any hoses are your issue !
  16. R

    what year and horse power is my boat motor

    Sounds like an 84 model .----A 3.500" bore V-6 marketed as 150 / 175 / 200 HP outboard.-----What is the number stamped on a high speed carburetor jet ?
  17. R

    1991 johnson 90 V4 High idle issue

    There is a spot on the intake manifold just in front of the starter for a conventional pump.-----The pump mounts there with 2 screws and a gasket.-----Just needs a hoses for fuel in and fuel out.---Remove pulse limiter and plug that pressure port.------But other folks work to different standards...
  18. R

    What did I do wrong with Transom?

    One reason why I am not using any WOOD in my project boat.---All composite materials being used.---Carbon fiber / kevlar / foam core / West system Epoxy.---Takes longer and materials cost more coins.----But the results are " priceless " as they say.
  19. R

    1981 Evinrude 35hp question.

    ???----The balls in the propeller shaft are for NEUTRAL only mate !!------They ensure that some effort is required and helps avoid folks from easing these motor into gear.-----Easing them into gear does all the damage.
  20. R

    1985 Mercury 50 HP 4 cylinder runs very boggy

    Did you install a new water pump impeller ?-----Tested the overheat horn if equipped with that ?
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