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  1. merc850

    1989 xr4 150 that sat 3 years issues.

    2 things that would bother me if it were my motor 1: Scotchlock connectors on 3 wires - they're not the best for marine applications, (had a car that died one time because the power to the ignition was SLocked) even soldering would be better. 2: The angled throttle cable - could be adjusted to...
  2. merc850

    Stand-alone tilt/trim pump

    Before you tear it apart here are the bleeding instructions for the rams (some of them have a 3/16" Allen screw) I would do this first:
  3. merc850

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

    Time to check the fuel system; sometimes I tilt the motor all the way up then pump the line bulb fuel should run out of the carbs then tilt it down and see if will start.
  4. merc850

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

    The pin is hard to push with your fingers so bolting it up will push it in, did you lube the DS and shiftshaft splines? This is how I do it in about 60 sec.: Turn the LU shift shaft by hand counter-clockwise until it stops, then with Vise Grips tight on the bottom of the shaft turn it a few more...
  5. merc850

    Mercury classic fifty 45 hp (1986-1989). Please help if possible-not running correctly

    It's just that freewheeling could throw rods etc. - also don't shift into reverse unless the motor is running or someone turns the prop until it stops. The low speed adjustments should should be made in the water in forward gear @ 1,300 rpm; set the needles 1 1/4 turns out to start.
  6. merc850

    Shocks

    Best invention for boating, here's my setup even the limit switch is set to prevent trim too far (before I replaced the decals)
  7. merc850

    Mercury classic fifty 45 hp (1986-1989). Please help if possible-not running correctly

    I don't know what your problem is but revving it up in Neutral is gonna cause you real trouble!
  8. merc850

    Lubrication

    You don't have to do all of these steps just whatever you need. I use anti-corrosion grease and synthetic multi-purpose.
  9. merc850

    1971 7.5 Mercury Impeller Stuck

    Put anti-corrosion grease on the shaft where the impeller sits and also on the top splines of the driveshaft and the propeller shaft.
  10. merc850

    Shocks

    I haven't worked on that many motors but I haven't encountered any broken ones, I don't understand why so many people lead-off with that possibility when it's usually fuel supply/carbs! I added the breaking part as a goof. :rolleyes:
  11. merc850

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

    Does your driveshaft have a pin on the top? this is spring loaded and it will be holding the units apart , assemble the units together in neutral. and check the reverse locks make sure they're not binding on the tilt pin.
  12. 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.
  13. merc850

    Shocks

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

    1979 Mercury 80 worth it?

    It's a 1979 motor just a typing error.
  15. 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...
  16. merc850

    1962 Mercury kiekhaefer 450 45 hp telltale

    See that little hole in pic 1 near the text "full gearshift" that's it
  17. 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.
  18. 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.
  19. 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.
  20. 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.
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