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  1. R

    1987 mercury 75

    Perhaps the 6 he read is really a ---G----Ask seller to re-read it perhaps.
  2. R

    1987 mercury 75

    That is a newer 3 cylinder looper.-----Why / how did you come up with the 6218 serial ??
  3. R

    Black scuff marks on cylinder walls

    Many factory gaskets ( and some aftermarket ) have a coating on them.----Experienced mechanics know not to use sealer on these.----Saw a U-tube presenter put a VERY liberal coating of gasket sealer on carburetor gaskets.----Did not realize that he was plugging up the oil recirculation channel on...
  4. R

    1987 mercury 75

    An 87 model would carry a serial # starting with --B110054--- I think.----Internal reed valves direct air and fuel to the 3 crankcases.----Did that beginning in 1972.
  5. R

    1987 mercury 75

    I doubt that your 6218795 model is the same engine group as the later 3 cylinder loopers.----Does your motor have 2 carburetors ?
  6. R

    1987 mercury 75

    A 3 cylinder ?
  7. R

    Critters in My Boat

    Brother in law----Has lived in a remote town all his life.----Every time I went up there, he had a radio on day and night in his workshop.----Protecting the biplane he was working on I think.
  8. R

    1987 mercury 75

    Unlikely , but is it a 4 cylinder?-----Or the newest 3 cylinder looper 75.
  9. R

    4 stroke v 2 stroke. Outboard

    The 9.8 would be crank rated power.----The 8 HP 2 stroke is prop rated ??
  10. R

    Critters in My Boat

    Play a radio in there ??
  11. R

    1979 chrysler 4 hp carburetor squirting fuel

    Clean the carburetor / repair float and float valve.
  12. R

    Black scuff marks on cylinder walls

    Correct---fit 5.5 and 6 hp 1960 to 79.----Wonderfull / simple / easy / cheap to maintain motors they are.
  13. R

    Black scuff marks on cylinder walls

    Just ordered 4 SIERRA head gaskets for the 6 HP.----Far cheaper compared to factory and never an issue with them.
  14. R

    1977 Evinrude 15hp pull start

    ???----Holes in small OMC flywheels have been 1/4-20 NC threads since 1950 !
  15. R

    RD-25D 40 HP reconditioning

    Use 7 mm wire core only !
  16. R

    1972 Johnson 25hp tiller

    ??---You said it does it with the flywheel off the motor ?
  17. R

    Black scuff marks on cylinder walls

    342513 ?
  18. R

    Temp control/sensor

    Used to sound an alarm if motor should overheat.----Custom installation.-----Best to install a new impeller every 5 years.
  19. R

    Black scuff marks on cylinder walls

    I would never install an aftermarket ( paper thin ) gasket for this V-4 / V-6 application.
  20. R

    Engine model number

    Bin working on outboards since 1968 or so.-----But , find a gray haired / caring mechanic in your area to help you with this.----Not many of those guys left I think.
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