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  1. merc850

    Stuck float ??

    I'm surprized it runs at all on 32:1 - 50:1 is the ratio. I would use Mercury's PowerTune to clean out the carbon and the plugs.
  2. merc850

    Where do I add tilt and trim fluid on a mercury 1982

    No problem once it's done it usually stays working.
  3. merc850

    Where do I add tilt and trim fluid on a mercury 1982

    OK I will
  4. merc850

    Wiring Help - Merc 500 Thunderbolt 50hp

    If you are doing any work to the distributor don't try to pull off the rotor it's molded on to the shaft just clean the tip with a light sanding.
  5. merc850

    Wiring Help - Merc 500 Thunderbolt 50hp

    This should be the wiring diagram for your motor it seems to be a 1968 model.
  6. merc850

    Wiring Help - Merc 500 Thunderbolt 50hp

    I think you need a proper wiring diagram use the serial Nr. to find it, then, you should clean all the wires and terminals as they are badly corroded. The carbs should be cleaned and float settings done and a compression test as well, a manual is your best investment.
  7. merc850

    20 hp Cowl Interchange?

    You could paint it with Phantom Black paint and re-decal it https://discontinueddecals.com/mercury_decals_20_871
  8. merc850

    Reassembling Mariner/Yamaha 40 2 cylinder two-stroke- use of sealants on gaskets?

    Usually you use Loctite on the seal cases and Permatex on the gaskets, I wouldn't use RTV on any parts.
  9. merc850

    Re-wiring my 78 mercury tower of power

    I have located 3 sources for new harnesses - just google it.
  10. merc850

    Re-wiring my 78 mercury tower of power

    Isn't there enough slack/extra wire to cut off the box wiring and solder in new wires? Usually the wiring harness is 20+ feet or more.
  11. merc850

    Someone added this purple wire .

    On 2nd viewing it looks like they were making a new harness out of separate wires.There's an upgrade in this diagram that simplifies and makes the wiring more secure
  12. merc850

    Wire Diagram mercury 650 1963

    Here's the diagram be advized that the magneto is grounded to stop do not put 12v into it.
  13. merc850

    Someone added this purple wire .

    Disconnect it, leave the yellow connected and try starting it with the key, do the same for the yellow.
  14. merc850

    '99 Merc 115. Yellow stator wires fried.

    Those corrode yellow wires look like they're from the rectifier and the connections should be replaced,the red ones could be from the regulator. At the right below the starter is another burned connector which looks like it's from the rectifier, it should be fixed too.
  15. merc850

    Merc 650 water tube/ exhaust gasket questions?

    Put the exhaust plate and gasket into the lower unit then grease the gasket lightly to ease assembly, I don't know what you should to with the water hose!
  16. merc850

    '99 Merc 115. Yellow stator wires fried.

    My sister had a dead battery in her seadoo and she had someone boost it at the ramp; burned out the stator and part of the ignition system. Boosting is also bad news.
  17. merc850

    '99 Merc 115. Yellow stator wires fried.

    Don't use the motor to charge a dead/low voltage battery; charge the battery to full with a charger and a deep cycle battery is not recommended, just a marine starter one.
  18. merc850

    Resurrection of a 1965 merc 60 6hp Kiekhaefer outboard

    Couple things my understanding was the fuel pump diaphragm had been replaced take the pump apart and see if the diaphragm is flexible and no holes.
  19. merc850

    Resurrection of a 1965 merc 60 6hp Kiekhaefer outboard

    Points .020" Plug J7C .025" file the points clean or buy new ones. I use synthetic gear lube. I would replace the fuel pump diaphragm as well.
  20. merc850

    Reed petals

    Interesting that there are no reed stops in the picture.
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