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  1. merc850

    1979 Mercury 80 worth it?

    I've checked my manual and the 50 is smaller in all respects - the 80 is in the larger motor category so you will have to make sure it runs or you can make it run.
  2. merc850

    Shocks

    Here's the "lowdown" on the Mercury shock system and those always breaking reed valves for those older motors.
  3. merc850

    1979 Mercury 80 worth it?

    It's a 1979 motor just a typing error.
  4. merc850

    1979 Mercury 80 worth it?

    An 80 would be a great upgrade...... right now the 50 is on the low side for extra speed....... I can see the PT cylinders and hoses but is the pump there?, looks like he's routed the tell tale into the transom well but there are lots of parts that you can keep as spares the harness looks...
  5. merc850

    1962 Mercury kiekhaefer 450 45 hp telltale

    See that little hole in pic 1 near the text "full gearshift" that's it
  6. merc850

    1962 Mercury kiekhaefer 450 45 hp telltale

    It's on the underside of the cowling you are looking at the inside you can't see it from there.
  7. merc850

    Mercury blue band thunderbolt 50hp 1970’s

    When you drop the lower unit to change the impeller there's a copper tube that leads to the power head, don't pull it out just take a garden hose and send water up the tube; water should come out of the tell tale and out of the driveshaft housing.
  8. merc850

    1975 Mercury 650 blue band - Abandoned, but brought back home

    The brushes look OK - is there any play (wobble) on the top bushing? if so this can affect the operation. Here's a tool that helps to assemble it.
  9. merc850

    1975 Mercury 650 blue band - Abandoned, but brought back home

    Take it apart, the brushes may be worn out and a repair shop might be able to fix it cheaper than buying a new one. I also noticed the shift and/or throttle cables have splitting casings which is not good and there's some material in the airbox that looks foreign.
  10. merc850

    1962 Mercury kiekhaefer 450 45 hp telltale

    Tell tale water is from the exhaust cooling manifold there are no hoses; shove a piece of wire in it to clean it out.
  11. merc850

    1975 Mercury 650 blue band - Abandoned, but brought back home

    Hook the neg cable to the block and touch the pos to the post on the starter that hooks to the solenoid. It took me 10 mins to boost my car battery due to bad connections.
  12. merc850

    1975 Mercury 650 blue band - Abandoned, but brought back home

    Charge the battery fully and try again and check the voltage while cranking it should only drop a few volts.
  13. merc850

    1995 Mercury 40hp 4cyl - sputters and eventually dies at idle under load

    Hookup a timing light to the Nr. 1 cylinder, start motor watch timing light if motor stops the light will go out then try to restart; the light should flash unless the problem is ignition. Try it with the other plugs. If the light doesn't flash it's ignition if it does it's fuel supply, an...
  14. merc850

    25 hp Mercury serial #5842749 1981 , no spark.

    It sounds like the switchbox is fried don't try to run it until you replace it or it might ruin the new components.
  15. merc850

    1962 Mercury kiekhaefer 450 45 hp telltale

    You should also check the point gap in the magneto and the cam wick is important too. Grease the top of the driveshaft and the propeller shaft and any bolts that hold the waterpump together, I use Anti-corrosion from Mercury.
  16. merc850

    Trim/ tilt help

    If he follows the instructions I've posted it should work, I have the same system on my motor and have done the procedure.
  17. merc850

    1962 Mercury kiekhaefer 450 45 hp telltale

    There should be a hole in the lower cowl pan on the port side, you have to get down and look up to see it; it could be clogged with debris. I would replace the impeller just to be safe.
  18. merc850

    Trim/ tilt help

    This is an original trim system with a pump in the boat and 2 rams at the side, the "gas assist" shocks were to prevent the motor from kicking too far out of the water and a mercury switch cut off the ignition for a second while the motor re-entered the water. PT was an option.
  19. merc850

    Regulator/rectifier

    Is this your light? Have you tried running the motor without the rectifier connected and not attaching the timing light - just let it run. The black and red clamps should be connected to the battery directly. Then stop it and hook up the rectifier (all the leads) and run it again, if you have a...
  20. merc850

    Regulator/rectifier

    The yellow wires are usually for the alternator and they go to the rectifier to charge the battery so they don't affect the ignition. If you can post a pic. of the "rectifier" it would help. You use the serial nr. to look for manuals and parts.
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