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  1. D

    Stern

    Can a stern bracket and swivel, from 1978 75hp work on 1976 70hp?
  2. D

    Mercury 70

    Cowling
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    Mercury 70

    To be able to look up parts. In the future.
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    Mercury 70

    So I picked up a Tacker with a Mercury 70. Outboard is a 2 carburetored 3 cylinder. My problem is when I look up the serial # number I can't find any information. Serial # is 6323616
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    70 hp tilt trim interchange

    I used one on my 78 stinger 75hp from the late 80's. Fit with no issues. I did have to buy 2 relays and build a wiring harness myself. I also have a newer control box with 3 wire trim switch.
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    1999 15hp Johnson Stuttering at low RPM

    Save yourself the trouble and don't get a tester from Harbor Freight. I had look with one from Auotzone.
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    Confrim my suspension

    Well didn't have to remove power head, was able to slide bottom plate down. I definitely had water in each cylinder. Would greatly appreciate any advice on torque spec and cleaning up the plates.
  8. D

    Confrim my suspension

    looks like the power head has to be removed to get to all the bolts from the exhaust housing
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    Confrim my suspension

    I'll pull it off after I study up on it a bit. Would it be a good idea to spray PB blaster into the cylinders to prevent rust and corrosion?
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    Confrim my suspension

    Could replacing the exhaust gaskets fix it?
  11. D

    Confrim my suspension

    Yes I dipped them. Torch tip cleaners ran through everything. New fuel pump.
  12. D

    Confrim my suspension

    Starts and idles fine. I've got 7/16 gap on all cylinders. Carbs are clean. Fuel is new, with 100% gas. Outboard bogs when going from idle to WOT. Under load it will not climb past about 3000 rpm.
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    Confrim my suspension

    Here are the plugs that came in the outboard before I changed them.
  14. D

    Confrim my suspension

    1978 75hp pretty sure I'm getting water in cylinders. Below are pics of the plugs. Could a head gasket or exhaust manifold gaskets be the issue? Engine has 120 psi on all cylinders.
  15. D

    TDC question? 1978 75hp johnson

    Plugs where out. I used the other method of using the stop a 1, 1/2" ATDC.
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    TDC question? 1978 75hp johnson

    So I have been trouble shooting, failure to accelerate past around 3000rpm. Using to Seloc manual. Link and sync procedure for finding TDC says rotate the flywheel clockwise and then back counterclockwise. This engine will not rotate counterclockwise. That a indication something is broken...
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    After market carb kits

    I sure have enjoyed messing with the outboard. I'm only into this boat for the labor of hanging 4 Interior doors. Pervious owner put quite a bit into the boat. Spark is definitely not the issue. He slapped on all new CDI ignition systems. New carpet and seats. He went super cheap on his carb...
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    After market carb kits

    Since becoming a boat owner I've been using more beer tokens. Thanks!
  19. D

    After market carb kits

    Has anyone used the after market cheap carb kits from ebay, with any luck?
  20. D

    1978 Johnson 75hp compression

    Re checked compression on 2 more testers. 120 on all 3 cylinders. During the compression check I noticed the cam yoke on the throttle rod was upside down. Would this explain why I have a stumble or bog when going into WOT? Also carbs are clean previous owner rebuilt them, replaced power pack...
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