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  1. R

    Shifting problem

    Lower units are often removed with control in neutral.----Then the lower unit jumps into forward.----After assembly it does not work.----The head scratching starts.----But wait this is a common mistake.----Find the tutorial at the top of MERCURY forum.----Follow it and resolve this.----No need...
  2. R

    1979 Merc 7.5hp oil mix

    Mix is 50:1----Is your tank volume in US gallons or IMP gallons ?---400 ounces requires 8 ounces of oil.------And ~500 ounces takes 10 ounces of oil.
  3. R

    Do you make your own gaskets ?

    All the time.----Made a fixture to punch neat clean bolt holes.
  4. R

    Water pump

    A rubber seal fits in outlet of the pump !
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    No aluminum model # plug on this powerhead.. Old 2 cylinder. How to identify??

    Most parts have a 6 digit casting #.----What # do you find on the cylinder head?----What size is the carburetor opening where it fits on the intake ?---Any # on the upper carburetor body ?
  6. R

    1971 Evinrude fisherman, not pumping water

    The 5-1/2 was fitted with a thermostat in 1959 model year.
  7. R

    What do I do??

    Your location ?
  8. R

    Please help, no spark and so lost

    Some have an optional battery charging coil under the flywheel.----There is no need to use a drill when testing for spark.
  9. R

    1971 Evinrude fisherman, not pumping water

    Back in the day we had J4J ( J4C ) for motors with a thermostat.----J6J ( J6C ) for motors without a thermostat.----No idea why anyone would want to run J8C in one of these simple motors.-----The ignitions on these are simple and easy to keep in good condition !
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    Wont start. '89 evinrude 70hp

    Fact----You cannot have 3 bad coils.----You can test the charge coils and sensor coils under the flywheel.----No need to remove the flywheel.-----What ohms do you get on brown to brown wire.-----Charged the battery ?----Load tested the battery ?-----Taken the starter apart for inspection / ohm...
  11. R

    Please help, no spark and so lost

    Swapping parts out gets expensive in a hurry.----Find your local friendly boat shop.----They can get this simple ignition sorted out while you go for a coffee.
  12. R

    1994 evinrude 150 emptying carburetor bowls then dies

    Have a look in the vapor separator tank,-----Inspect float valve and internals.
  13. R

    cable steering + trolling motors: what is the Right Way™ to do this?

    In my area folks used to adapt a power window motor and threaded rod to steer a trolling motor.
  14. R

    1976-1978?? 9.9 flywheel nut

    Check for interference with cowling ?
  15. R

    1994 evinrude 150 emptying carburetor bowls then dies

    No that little pump does NOT pull fuel from the tank.----Find the VRO pump big black plastic housings.
  16. R

    15W-40 oil is it multi purpose?

    Well said ---Jimmbo
  17. R

    Assistance with 1984 8HP Evinrude

    It is possible that a different lower unit has been fitted.----For a few years they installed some that did not use a clutch dog.-----Make sure you replace the seals as water in these units is a big issue.
  18. R

    15W-40 oil is it multi purpose?

    Use----google----This question of diesel rated oil in a gas engine has been asked / explained before.
  19. R

    2006 Johnson 9.9hp need help…

    Just fuel is not the cause.----Too much fuel will SLOW the motor down !!----You need the extra air and fuel to make it run wild.----Checked the belt timing ?----Checked for a sheared flywheel key ?
  20. R

    15W-40 oil is it multi purpose?

    Oil debates go on and on.----I would use 25W-40 as per Mercruiser manuals.
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