Recent content by Chris1956

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    Can someone tell me what the plugs/wires are for on my 98 evinrude 90HP? See attached

    Those are close but not exact to my 1998 90HP60*V4 service manual wiring diagram. So here are some educated guesses. First picture: wiring for dashboard remote control PTT switch (green/white, blue/white). and (Beige/white) PTT gauge. Second picture: Alarm wires for overheat, low oil, no...
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    question on the starting a "2 cycle Merc" sticky

    Gee, you have found replacement harnesses, just not for the right price....
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    Fuel filter separator

    Normally the primer bulbs are on the engine side of the filter. You would need two primer bulbs, one for each engine. Without any shutoff valves, one motor could pull fuel out of the other motor's fuel line.
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    question on the starting a "2 cycle Merc" sticky

    You can always make a new boat wiring harness. Measure the wire gauge of the old harness and buy some wire to match. Cut the wires and using different color electrical tape, wrap the new wire ends for identification. Your motor likely has red for battery, black ground, black/yellow for spark...
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    Let's talk skill...

    Gee, unlike parking a car, a boat is subject to wind and current. so, figure out which is strongest and use it to help you. I will refer to the strongest as the boat's drift. If the boat will drift into the dock, plan to come to a stop parallel to it and let the drift push you to the dock...
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    question on the starting a "2 cycle Merc" sticky

    Gee, those look like battery cables. If that is all that is wrong with the boat harness, new ones can easily be spliced in. Usually it is the quick connect that goes bad.
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    Fuel filter separator

    The unused port needs to be sealed. The plugs are usually tapered, so tighten them a bit, or carefully us some teflon tape in the threads. Make sure no teflon tape gets into the filter or lines. The filter is a real PIA to prime using a primer bulb. Fill it with fresh fuel, before attaching...
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    Automatic trim tabs

    Hydraulic trim tabs are adjustable, and much better IMO. They can really help stern heavy boats, or underpowered boats. The auto ones retract under water pressure, always causing drag. This drag reduces fuel economy and performance. So, with hydraulic trim tabs, and when the fatties are in...
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    question on the starting a "2 cycle Merc" sticky

    The engine wiring harnesses were avail several places on the web. surplusunlimited was where I bought one for my '77 Merc. You could buy a Deutch or Amphenol connector to replace the side quick d/c for short money. The boat wiring harnesses were much more resilient than the engine...
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    Help with replacing gaskets

    There are lots of utube videos on replacing the seals in the gearcase. I assume that yellow stuff is gear oil?
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    How do you trim?

    Some boats will ventilate if you trim them at idle and then accelerate. This is especially true for boats where their outboard motors are mounted high for less drag/higher speed. When my Merc 135V6 was mounted high on the jackplate, it needed to be trimmed all the way down to accelerate at...
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    Rotary steering cable

    I am trying to get the wheel straight on my speedboat. I need to look good for the audience, however, with the NFB system it is hard.
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    1984 115hp TOP Switch Box Wiring

    It is hard to tell from a picture if the ground is good. Some general stuff. All those questions ask if the grounds are good. If you have a good ground, the switchboxes do not use lots of amperage, so a light duty ground wire is fine. If in doubt, add a ground wire to any good ground.
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    How to restore this 1961 hull?

    To be accurate, the balsa coring in my '62 Crestliner went from chine to chine, not to the gunwales. The sides were solid 3/16" or less fiberglass. The original owner rolled it over to paint the bottom, and the hull deformed side to side, which was unusual. It was fixed with some FG cloth...
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    thunderbolt ignition blows fuse after start

    Also check the accessory wire from the ign switch, rubbed bare somewhere and shorting to ground. It should be purple.
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