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  1. Mercerman

    70 HP Mercury won't run with rectifier connected to battery

    1978 70hp Mercury lost spark. I started testing and found the rectifier was bad and have spark and runs good with rectifier removed. I did the continuity test on it and it shows as being bad. I got a new one and now it will run with the 2 yellow wires from stator connected (which it wouldn't do...
  2. Mercerman

    What size prop for a 16' aluminum boat with a 70 HP Mercery

    Hey guys, I got a '74 Starcraft 16' SuperSport with a '78 Mercury 700 (3cyl.). It came with a 13 pitch prop on it which seemed a little small. I just installed a new tach and it shows 7000 rpm at full throttle. Either the prop is much too small or the new tach isn't working right. Can anyone...
  3. Mercerman

    Starcraft 16 SS - 70Hp Merc (700)- what pitch prop?

    Hey guys, I just finished restoring a '74 Starcraft 16' SuperSport with a '78 Mercury 700 (3cyl.). It came with a 13 pitch prop on it which seems a little small to me, but I don't have a tach in it yet. Can any of you guys that have a similar merc (650-700 3 cyl.) on your boat tell me what size...
  4. Mercerman

    Sick of Plastic Prop

    I have a 9.9 force outboard which came with a Composite (plastic) prop on it Part number FP6477 (8x9.25x3 10 spline). I would really like to get an aluminum prop for it. At one time there was a FP472 alum that would fit it and Michigan Wheel used to make one Part #72122 (8x9x3 10 spline). Does...
  5. Mercerman

    Mid 70's Mercury switch box - 4cyl to 6 cyl

    Will a switch box/power pack from a mid 70's 85 hp (850) 4 cyl work on a 76 150 hp (1500) inline 6. Sierra and CDI have the same part number for all 4 and 6 cyl motors from that era, but I can't find any info on the OEM part interchangeability.
  6. Mercerman

    Mercury Six Cylinder Lower Unit Interchange

    I have a '69 Merc 1000. Does anyone know what years of 6 cylinder lower units will fit this?? I thought I once heard '66 thru '85 Inline 6's or is it any 6 cyl. after 1966?? Also what year did they start putting stainless steel shafts in?
  7. Mercerman

    Merc 1000 revs to 3000+ RPM when should be idling

    My 69 Merc 1000 hasn't been used for years. When I start it up, it revs over 3000 RPMs with the controls in the idle position. I rebuilt the carbs, but no change. The carb kits didn't have float needle seats. Could leaky seats cause this?
  8. Mercerman

    69 Merc 1000 Stator interchange

    Does anyone know what years and models have stators that will work on my 69 Merc 1000. Only 68 - 69 1000's show the same part number, but I've heard that stators from many other years and HP sizes will work, it's just so hard to find interchange info on this. Thanks
  9. Mercerman

    '69 Merc 1000 stator test

    1969 mercury 1000 2 wire stator. I replaced the stator because the wires rotted off. Can the old stator be bench tested? How? Because if good, I would like to solder on new wires and keep for a back up (these things ain't cheap).
  10. Mercerman

    '69 Merc 1000 stator wiring

    I'm replacing the stator on my old Merc 1000 and the stator has 2 wires that are the same color. Does it matter which one goes where or How do I know which one goes where?
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