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  1. merc850

    Older Merc Trim Issue

    Try removing the bleed screws (yours might be Allen screws) one at a time and follow these instructions. When you trim up you might have to press the UP and OUT buttons at the same time.
  2. merc850

    65 650 flywheel/timing question

    This is for a '67 but the method is the same. When you put the flywheel back together tork the bolts to 15 ft/lbs and use blue Loctite on the threads.
  3. merc850

    Engine Type/model?

    It is a 6 cylinder Merc 90 as these happy boaters will tell you.
  4. merc850

    1959 Kiekhaefer Mercury Mark 58ae ignition switch

    If you want to eliminate the rectifier to the key switch upgrade it to a diode type and you can wire it to the + terminal on the starter solenoid.
  5. merc850

    Starter rope replacement

    There should be a screw on the top of the cowling that holds down a cover plate undo this then bend down the tab on the tab washer that pushes against the nut; undo the nut by turning left while holding the large rotating part (inside cowling) with the other hand, don't let it drop there is a...
  6. merc850

    1983 Merc 115 Inline Trim Bleeding Issues

    Just follow these instructions
  7. merc850

    Messages not opening

    Someone left me a message but I can't see my messages!! Maybe you could post it in the forum.
  8. merc850

    65-66 Merc 650

    Don't shift into R unless the motor is running and I would change the waterpump impeller first of all. The control box looks like this (decals may be different colors)
  9. merc850

    65-66 Merc 650

    I have some old 120v tools that use that rubber coated wire including an industrial floor sander (the one used for hardwood floors) that I discovered had rotten wiring; wondered why it wouldn't work! My theory is the way the motor was stored causes the disintegration, I have seen motors wrapped...
  10. merc850

    1964 850 Tower

    I don't think there's a "universal harness" they changed with engineering upgrades; check the plug on this diagram if the "F" terminal is broken you can attach the + output from the rectifier to the + on the starter solenoid. You could replace both with other years' as long as you match the wiring.
  11. merc850

    1975 65hp possible water tube issue???

    Here are the manual instructions.
  12. merc850

    1975 65hp possible water tube issue???

    If the watertube came out of the powerhead you'll have to put it in there first, tip the motor all the way up and look at the rubber seal in the base try and put the tube in place. If it stays put LU back on. There should be a plastic guide tube that helps you get the watertube into LU.(Nr. 35)...
  13. merc850

    1963 Mercury 110 Coil Removal

    Here are the instructions for checking and repairing the magneto, it seems that you can remove the wire(s) without taking the coils out which I would try first then set up the points etc.
  14. merc850

    Why water can intrude through crankshaft lower seal of 77 mercury 1150?

    Replace both gaskets on the exhaust covers with new ones and make sure that the surfaces are clean and level; don't use any silicon seal. Put Anti-corrosion grease on the bolts and tork them according to sequence on page
  15. merc850

    Piston number

    Checking my parts list for my '75 850 the Nrs. are close but you have to use the serial Nr. which could be on a plate between clamp bolts for searching.
  16. merc850

    Torque specs

    This should cover it
  17. merc850

    Deteriorated wiring

    If the wiring is shot then chances are the rectifier and or switchbox are too; the first diagram is your motor the second the manual version.
  18. merc850

    Reverse Lock

    The only other pages concern mounting and bleeding.
  19. merc850

    Reverse Lock

    Can you post a picture of this pump? The large nut should be tightened into the case and to operate the unit the small knob should be set by turning to the left until it stops.
  20. merc850

    Reverse Lock

    Why are you taking the reverse lock apart? The knob pushes on a plate that regulates the tilt up, the system has to be pressurized for this to work; the large nut has to be tight to allow the knob only to move in and out.
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