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  1. merc850

    Can you help me to understand this explanation from CDI on my charging issue?

    Here's the procedure; there is enough room on the front cowl support to install it there - I don't know the part Nr. It is probably from a newer V6 motor.
  2. merc850

    Can you help me to understand this explanation from CDI on my charging issue?

    I had 16+v going into a new maintenance-free battery so I installed a Mercury regulator, very simple to do; and now I get 13.5v constantly. Here's the wiring diagram for your motor if you want to check voltages etc. I also installed a CDI (company) trigger and the instructions said to not exceed...
  3. merc850

    What's year my Mercury Marine outboard built?

    That rusty piece at the bottom of the swivel assembly looks like it's been cut and is interfering with the turning motion. It's supposed to be a strap that goes around the outside of the tube like Nr.11 in this image.
  4. merc850

    Mercury Mark 55A Questions.

    The original Mark 55 (photo taken in 1973)
  5. merc850

    62 merc 1000 reverse locking cam orientation

    Manual page
  6. merc850

    Merc 40hp clicking noise

    I don't know if the new ones are the same as the old ones but here's a picture of the standard type from 1950 to 1980 the only thing that moves is the clutch dog - the F gear has ramps that engage and is spring loaded; shutting the motor off in F will cause the ramps to ratchet. Those gears are...
  7. merc850

    Blue Band Mercury 850 Serial Number

    The shift cable moves first then the throttle
  8. merc850

    Mercury 50 hp thunderbolt issues

    1969 Merc 500 parts are cheap and available from Mercury, if you replaced the check valves one goes in the valve body and one sticks up from the casting.
  9. merc850

    61 Kiekhaefer 500- no spark

    I wouldn't use aluminum wire it corrodes easily in a marine environment and it should be multi-stranded for flexibility; if this is really a 1961 it uses a magneto and if you have connected 12v to the post on the side you have burned the coil and points and condenser. This is what the magneto...
  10. merc850

    115hp tower of power missing section?

    I can see the red coil from the late 60's early 70's Tbolt ignition so I'm assuming that era; there are only 2 fuel pumps on this motor. I also see that the bleed hoses which should run from the bottom bearing to the middle and top have been replaced and re-routed - hoses normally go from A to a...
  11. merc850

    Kiekhaefer Mark 58 Shift rod alignment

    Here's a picture of the shift shaft in neutral - remove the shift control cable, turn the shaft to this position set the LU to N grease the LU shaft and put it together; the reverse lock cam must be set right as well or it will stop the LU from moving up. When it's together adjust the shift...
  12. merc850

    Idle adjustment or throttle adjustment?? 1974 1150 TOP

    Here's the cable setup procedure; the shift cable moves first then the throttle with the cold start lever down
  13. merc850

    Mercury 40 4hp help

    My guess is the cover bolt for the high speed jet (Nr. 32) check that part 34 (fixed high speed jet) is in place before installing. Could be a spare for whatever reason.
  14. merc850

    Prop spinning correct way??

    Make this your desktop bkgnd. Don't shift into reverse without a.) engine running or b.) turning prop at the same time without engine running.
  15. merc850

    Need a expert on old mercs

    Looks like you'll have to make a pointer it's critical for the procedure; here's the timing decal layout find the 3 inline dots and measure for each key spot, (if you get some inkjet decal paper you can make your own decal). What retaining ring do you need the one that holds the lower bearing in...
  16. merc850

    40 hp Mercury switch box

    I can't find any SWITCHBOX tests that don't need a Merc tester, the trigger test using a jumper will show a bad box too, use the "no spark or intermittent" paragraph
  17. merc850

    CDI box question

    You'll need a rotor and shaft that fits the housing, the rotor is molded onto the shaft so you can't just pull it off. Before you try to re-engineer it try a dealer or this place http://americanoutboard.com/shop/shop.htm get all the parts including the switchbox.
  18. merc850

    1978 Mercury 500 50 hp No Spark

    Well that makes it a 1975 or earlier - a serial Nr. would help - here are the test values
  19. merc850

    1978 Mercury 500 50 hp No Spark

    Are you sure it's a 1978? Here's the wiring for a 1978 which is different than a 1975. Which post did you touch?
  20. merc850

    CDI box question

    I've never seen that assembly and I don't have the 1967-1974 manual, it sort of looks like someone adapted a trigger from another model; this could be a factory modification. In 1967 that model was available with a magneto or TBolt - you have the magneto adapter on the top and TBolt? trigger...
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