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    Help ID my motor please 85hp or 115hp?

    I am not too familiar with Johnson outboards and I bought a advertised 85hp Johnson Javelin on the cowl but the motor as a red sticker with timing degrees and it says 1976 115hp on the aluminum air intake and the motor seems to be painted factory white. The lower unit has a stripe but I cannot...
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    Flipping boat hull suggestions?

    I have a Grumman 5.0 aluminum boat which weighs in around 800lbs (no motor) and I am planning on spraying the bottom with a rubber liner and I was curious how I could flip it over with little or no help but myself? I have a engine cherry picker, standard engine stand and plenty of 4x4's to...
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    A little metal on lower unit drain magnet question

    I am not sure if having a little metal on the lower units oil drain plug is normal or not on a '84 90hp Mariner. There is just a little bit there and the pieces are really small. I am the new owner of the PO's boat and the maintenance history is not there. The oil in the lower unit did look...
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    Bent Trim Rod help

    I just bought this off of a guy damaged only because it was low use looking and it came from inland and never saw salt (unlike mine). He was trailering it from a Bass competition and jack knifed his boat off of the road. He mentioned that he used to use transom savers but a friend showed him...
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    Head Identification Help Please ... 4 Stroke 3 or 6Cylinder?

    I was at the scrap yard looking for some aluminum to patch up my transom and I came upon this really great condition head. The spark plugs had not even been fired up. The head does not have any visible problems and looks fantastic. The only identifying info is E-1 then 93JPORT on the sprocket...
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    Marriage advice needed for my recipe for disaster

    This one is about should I tell her or just let it go :facepalm:. My wife is an avid germ freak and if something got dirty with something it was not intended to touch ... pitch it. Now my dilemma ... I was cleaning three carbs with carb cleaner on a Mercury restoration project and I noticed...
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    Cylinder Bleed Hose???

    What does the Cylinder Bleed Hose on at 1984 Mercury 90hp inline 6 do? Is this something I should pull and check both directions with air to see if there are any plugged areas or might I ruin sometime of directional valve? Does this hose need to be of "fuel line" quality if I replace it? Or...
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    Trim motor really replaceable without pulling unit?

    Is my trim motor accessible to remove without removing the complete trim system? See photo. I read the technical book and they mentioned it can be pulled without pulling the unit but I have no idea how to get to the rear screw and even so, do you think it would even come out based on the...
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    Any hints on properly stopping internal thread corrosion?

    How do you stop the corrosion that happens with threaded fasteners going into the Mercury Mariner block? Look at the photo to see what I mean. I have some of the waterproof lower unit grease if that helps or hurts? Suggestions? Ideas?
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    Steering link rod and tube problem? Older Merc

    In the midst of working on this recently acquired Grumman 5.0, I noticed that the motor never turned and the steering wheel seemed locked. This motor is steered by a rotary steering unit that has the steering cable that goes to the steering tube on the motor. Here is the questions and or...
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    Anchor Rope Size Rules?

    Just out of curiosity, are there any charts about what strength of rope is needed for an anchor for various size boats? Mine is a 17' Grumman 5.0 that weighs in with the motor, boat hull and accessories at around 1200 lbs. The anchor is probably around 12 lbs with about three feet of chain on...
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    How do you get a replacement US Coast Guard MAXIMUM CAPACITIES label?

    How do you get a replacement US Coast Guard MAXIMUM CAPACITIES label if you don't have one for your boat or its just getting too darn hard to read. I can actually see mine but I would like to restore the boat and replace the old one. Suggestions? I have a US Coast Guard station about 20 miles...
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    Grumman Boat Photos

    We need to put some photos of our Grumman boats online for others to find and use for reference or bragging rights ... Some of the fellows are doing fine restorations and if I did not find the right search words I would have never learned what I have about the boat I am working on. What do...
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    Grumman 5.0 weight limitation question

    I have a 1983 Grumman 5.0 and the US Coast Guard MAXIMUM CAPACITIES (thats how they printed it) says 6 persons or 875 lbs then it says 1600 lbs persons, motor, gear rated at 100 H.P. motor. Here is the question: If the boat weighs in at 853 lbs dry plus 294 lbs motor weight, and I supposed to...
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    Should I use Dielectric Compound

    Getting ready to install a bunch of new ignition parts and I was curious if there was any reason to or not to use the Dielectric Silicone Compound. I was hoping that this stuff would keep if not help make better the electrical connection of each part to the terminal mounts on the rectifier...
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    Suggestions on looking for corrosion inside engine

    I have a 1984 90hp Mercury that I am getting ready to replace all of the electrical components on and I thought that before I committed to actually putting them on I would open the motor somewhere to see if the aluminum block had corroded badly from salt water use and the PO not flushing...
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    If a coil looks the same as another ... is it?

    I have a 90hp 1984 Mariner needing coils and I see people selling them from other HP motors but they look the same. For example, would a 1987 150hp Black Max coil that looks like mine be the same? Is there a difference in the ignition coils based on horse power or are the mostly the same if...
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    What are the numbers on the back of the coil?

    I am trying to locate some replacement coils for my 84 Mariner 90hp I6 and I was curious as to what the blue green looking numbers mean on the coils. Of the six I have four have the number 1364, one is 0025 (it has a metal contact going from the ground to the ferrite core) and one is with white...
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    How to check and test a Mercury Mariner Coil

    The technician at CDI gave me some pointers on how to check a coil and I thought I would pass them on. The first step is to do a Ohms test to see if the coil is good before going on to the visual internal ferrite core inspection. Meter Test: 1. With your ohm meter, measure the coil ground...
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    How do I DVA test stator non-starting motor

    Trying to figure out some electrical problems as the motor I got used has never made a spark. How do you do a DVA test on the stator if the motor will not run on its own power? I have plenty of charged marine batteries to turn the motor but I did not know if that would even get close to...
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