Recent content by DoctorCAD

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    Black Max 150 starting issue

    It has been really hot here this summer, so boating has not been on hold. It's not a lot of fun to sit in 100* heat on a lake with no breeze. Because of that, my boat has only been started about 10 or so times this season, with the last time a month ago. Saturday, I tried to start the motor...
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    Broken temperture sending unit

    Was winterizing my 1983 Black Max 150 today and found a broken (corroded away) wire. After searching my Seloc manual, I determined it is a temp. sending unit. Sits right over cylinder no. 1 on tor of the head cover. Can it be fixed or is it a throw-away? Any idea about cost?
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    Transom mount transducer max speed

    My transom mounted transducer for an Eagle 168 depth finder has a pivot to keep you from tearing it off if you were to beach or hit debris. The problem I am having is that around 55 mph, it pivots up. Any way to mount differently or something. I realize 55 is way too fast most times, but if...
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    150 Black Max question

    1984 150 HP Black Max.<br />1) When starting in hot weather, the enricher circut activates, causing a flooded condition at first start-up. If I manually de-activate the circut, the motor starts up easily. Any way to keep the circut from activating?<br /><br />2) When running on muffs, the...
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    OIL INJECTION SYSTEMS

    Can an oil injection system be added to an existing pre-mix system. I bought an Ebbtide Dynatrak with a 1985 Black Max 150 and it only has a single pre-mix gas tank. I'd like to not worry about pre mixing if it is possible.
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    Why no lower units available for low HP engines

    I need to replace the lower unit on my Merc 200 20 HP motor. The skeg is broken and it needs resealed. $500 worth of work for a 31 year old motor. I looked all over for a used LU for this motor, but keep finding only 40 HP and up?<br />Is it really not worth any money to anyone to fix small LU's?
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    Kill Switch

    At least thats what I think it is called.<br /><br />On my remote console is an "RUN/OFF" switch that connects to a threaded socket in the side of my Merc 200 (20 HP). The connection at the motor has a prong that goes into a hole and I assume it is a ground for the ignition. The prong on mine...
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    Drive-On vs. Non Drive-on

    I need to convert my non drive-on trailer to a drive-on type. Can it be done easily?<br /><br />I currently have 3 keel rollers and 2 stablizing type bunks. What do I need to add?<br /><br />Boat is a 15' Starcraft aluminum Kingfisher, trailer is a factory matched Snowco.
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    Taking Boat off Trailer

    I need to take my boat off my trailer to do maintaneance on the trailer.<br /><br />I know that I read about somehow blocking the transom and pulling the trailer out from under the boat, but I couldn't find it using the search button. <br /><br />Anyone remember that thread?
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    Tiny Tach on a 1973

    Does anybody know if a Tiny Tach will work on my Mercury 200? It is a 1973 20 HP 2 cylinder with electronic ignition, serial # 3667961
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    Mercury 800 number help question

    I called the Mercury 800 number to get some specs on my 1973 20HP Merc200. I wanted to know the RPM range and the stock prop size. The guy spent a lot of time with me and I'm grateful for his help. The only thing that was confusing to me was the RPM range he quoted me first was 4650 - 5500...
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    Merc 20 HP Off switch broken, What to do???

    I picked up a 1973 Merc 200 20HP motor last night. The remote control unit has a motor kill switch on it, but the end of the plug was broken off. It looks like a coaxial wire.<br /><br />Can I get a new end? Is the switch just open until you throw it then goes to ground? That would be pretty...
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    Merc 200 20 HP

    Picking one up this week, it hasn't been run in 10 years or so, but has been stored indoors.<br /><br />What are the first things I should do, aside from getting a manual? Owner said he changed lube before storage and drained carb because it was in his basement. Impeller kit and new lube...
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    New Boat Motor

    I want one of these!<br /><br /> http://www.bath.ac.uk/~ccsshb/12cyl/
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    RPM question

    I have a 10 HP Evinrude Sportwin that supposedly runs at 4500 RPM. How can I verify that it is running at that (or close to that) speed? I have a very difficult time telling if the throttle is wide open and I have no tach. My GPS shows about 9.5 max MPH with 2 people and gear in a Starcraft...
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