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  1. merc850

    85hp merc blue band dropping spark

    Re: 85hp merc blue band dropping spark If it has a distributor here's the wiring.
  2. merc850

    74 merc thunderbolt 50 hp tilt trim installation

    Re: 74 merc thunderbolt 50 hp tilt trim installation Here's the wiring diagram and the mounting setup the hoses should have some slack so they can move when trim is operated. The trim limit switch might be toast, you can bypass it and run that way. Make sure the tilt pin is in at the closest...
  3. merc850

    Hydraulic tilt/trim bleeding

    Re: Hydraulic tilt/trim bleeding There must be a good reason they put this in the manual.
  4. merc850

    Merc 650, From black stator to red. What to do with the red wire??????

    Re: Merc 650, From black stator to red. What to do with the red wire?????? Here's the wiring diagram to help clear up your problem
  5. merc850

    Trim Issues on mercury 850 thunderbolt

    Re: Trim Issues on mercury 850 thunderbolt Here's the wiring diagram for the "in boat" pump
  6. merc850

    Mercury Thunderbolt 850 Blueband

    Re: Mercury Thunderbolt 850 Blueband If you have this type of carb take the fuel line off and dispose of the filter.
  7. merc850

    Torque specs for the exhaust

    Re: Torque specs for the exhaust Here's the manual way and the tork specs: cover-250 in/lbs - water jacket 150 in/lbs.
  8. merc850

    1150 distributor

    Re: 1150 distributor If you've never done it, here are the manual instructions
  9. merc850

    Mercury inline 6, Distributor setting

    Re: Mercury inline 6, Distributor setting Here are the torque values
  10. merc850

    lower unit removal problems on 850 mercury.

    Re: lower unit removal problems on 850 mercury. Here's the LU setup do not pull out the shiftshaft (at front) or you will have to remove the bearing carrier to reinstall shift cam.
  11. merc850

    Is this motor worth repairing?

    Re: Is this motor worth repairing? Good job on that starter repair, they're not hard to fix and parts are still available. I think that your motor is a 1969-70 Merc 800 Here's a wiring diagram for 70's 4 cylinder Thunderbolt ign. motors
  12. merc850

    !972 Mercury 650 65 hp 4cyl I am guessing carb trouble? Please help

    Re: !972 Mercury 650 65 hp 4cyl I am guessing carb trouble? Please help Here's how to set the float height and the only spring in those carbs is inside the float. It's possible someone pulled it out by accident when checking the carb.
  13. merc850

    best way to clean out rams

    Re: best way to clean out rams If you want to flush the system, remove the lines from both rams and secure them in a bucket or jar then fill the tank with fresh 5W20 oil and press the up and in buttons until fresh oil comes out. When the oil coming out is clean attach the lines then open the...
  14. merc850

    1963 Merc 500 controls? advice?

    Re: 1963 Merc 500 controls? advice? Here are some on ebay - this is the period correct one
  15. merc850

    1967 65hp mercury water pump replacement ?

    Re: 1967 65hp mercury water pump replacement ? Here's the factory diagram just undo the nuts that hold the pump cover on then remove flush screw on side of LU, then pry up the WP base to replace the seals inside. Remember which way the lips are facing and use Loctite on the edges of metal frame...
  16. merc850

    trim motor problem

    Re: trim motor problem Do the hot wire test then if no go take it apart (nothing to lose there) and check for wornout/sticking brushes and dirty armature. The brushes are still available and easy to replace.
  17. merc850

    Mercury 850 1970-1976's Model Charge problem

    Re: Mercury 850 1970-1976's Model Charge problem You're gonna need a wiring diagram here it is. The stator is under the flywheel, check the wires that lead to the rectifier for bad insulation and breaks. Disconnect the wires from the rectifier and check with an ohmmeter should be around .25 to...
  18. merc850

    1949 Mercury KF-5 " Super 5" Outboard- 2 plugs per cylinder, tool in handle!

    Re: 1949 Mercury KF-5 " Super 5" Outboard- 2 plugs per cylinder, tool in handle! Re: 1949 Mercury KF-5 " Super 5" Outboard- 2 plugs per cylinder, tool in handle! Here's what dealers said(the KF5 became the Mark 5 in the fifties.)
  19. merc850

    1970's Mercury 150hp tilt & trim questions

    Re: 1970's Mercury 150hp tilt & trim questions If that motor has the four hoses and the pump is inside the boat you can release it
  20. merc850

    1963 Mercury 500 question

    Re: 1963 Mercury 500 question Are you saying that when the control is in neutral the starting motor won't turn? Inside the control box there is a neutral safety switch this might be out of adjustment, disassemble the control and see if it needs adjusting. It fits into a notch in the shift cam...
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