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    1975 9.9Hp Evinrude Misses at mid-range

    My motor seems to miss when I run it in gear at about mid-throttle. It idles not too bad and moves forward slowly ,OK. As I add throttle is seems to cough and miss but if I keep adding throttle it seems OK again. I don`t seem to have any problems at WOT. When the miss occurs, I tried...
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    Question on Setting Points 1975 9.9Hp Evinrude

    I am going to tune up my motor. The question I have is when I set the points to 0.020", do I need to have the throttle in any special position? Fully closed, fully open to neutral stop, fully open in forward gear, etc. or doesn't matter. I am thinking of the timing advance which I believe is...
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    1961 5.5Hp Johnson Carb Kit with Float

    I have the two part numbers for the carb kit for my motor. Sierra is 18-7043 and BRP is 439071. I am pretty sure the Sierra kit does not have a new float, but would anyone know if the BRP kit 439071 comes with a new float?
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    Obsolete Screw

    The screw that holds my tiller grip on is kind of stripped. I would like to change it, but it seems that it is not available anymore. Do you know if they have come up with another for this purpose. The parts lists identifies it as BRP #310303, but as I said, it seems to not be available...
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    Annoying Throttle Cam - 15Hp Evinrude '76

    My new motor is working well, but the throttle operation is annoying. When I open it up to higher speeds I have to hold onto the tiller grip tightly or it will back off quickly and the boat will slow down rapidly. I also have a 1975 9.9Hp Evinrude that doesn't do this. When inspecting the...
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    Sierra Gave me two Reed Plate Gaskets

    I am re-installing my intake manifold and reed plate to my 1976 15 HP Evinrude and noticed that in my gasket package from Sierra, there are two "inner leaf plate" gaskets (18-0959-9) I tried to order all OMC parts (the OMC part for this is 318924), however my dealer only had a Sierra one for...
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    Question for "the machinist"

    or anyone else that knows. I have a 1976 15 Hp Evinrude that has a fair bit of slack in the twist grip of the tiller arm. I can pretty much go from "shift" to "start" without advancing the throttle at all. In LeeRoys Ramblings it says...
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    15Hp Evinrude '76 - Appreciate your advice

    OK, this is where I am on this 1976 15Hp Evinrude. When I fire it up it will stay running on the top cylinder but not on the bottom. I would appreciate any ideas, suggestions, guesses or gut feelings. These are the tests I have done. Compression 100psi on both cylinders Spark: both...
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    Adjusting Trim depending on load - 9.9Hp Evinrude '76

    I am curious if anyone adjusts the trim on their smaller, tiller type motors, to account for various loads. My motor has about 5 holes, I think, in the transom bracket that adjust the trim of the motor to the boat. I currently have the adjustment rod in the hole closest to the boat transom and...
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    Fuel Delivery Problem 9.9Hp Evinrude 1976

    My motor has a problem. Sometimes when I run it, when it is later in the day, 1:00pm etc. and it is real hot out, it fires up OK. However, you can sometimes get about 30 yards out and it starts to hic cup and then die. I noticed it last year and I knew that the last time I cleaned the carb I...
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    Things are Getting Wierd - 1976 15 Hp Evinrude

    Ok, so I am trying to get a non-running 1976 15Hp Evinrude going. When I first obtained it, it had good compression (100psi on both cylinders) but no spark on either cylinder. I popped the flywheel and changed the points and set them to 0.020" and replaced both condensers. Presto, great spark...
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    Any Fix For Holes in the Hood

    I got a pretty cheap motor and I am in the process of fixing up the motor. It was not overly well taken care of and as you can see from the picture my hood has a nice size hole in it. Is there any bonding material or patch that can fix these things. I would rather avoid grey duck tape (white...
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    Tune Up - 1976 15Hp Evinrude - w/Pic

    I am doing an ignition tune up of my motor since it does not currently have spark in either cylinder and I have a few questions. My kit came with 2 sets of points and 2 condensers. It also came with 2 small phillips screws and a black piece of felt material about 1 inch square. It also has...
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    Zinc Anode on 15Hp Evinrude (1976)

    I noticed this thing on the cavitation plate of my motor. Wasn't sure what it was so I removed it and searched the part number and found out that it was a zinc anode. I am assuming that pretty much tells me that my motor was once used in salt water. My question then is: is there any other...
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    1976 15Hp Evinrude - Cam Plate

    I have a new to me 15Hp Evinrude (1976) and noticed that the plate, underneath the flywheel, that the two little nuts screw to, that are used to synchronize the roller cam from the carbs throttle, is loose. The two little nuts are still tight but the plate that they screw to just rotates on...
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    Help with my great buy - 1976 15Hp Evinrude

    A guy posted a 1976 15Hp Evinrude for sale for $50.00. He said it worked well last summer but a mouse ate through the cover and chewed the big black wire coming from under the flywheel to the coils. Would anyone know the part number for the wire/s that plug to the coils and how difficult it...
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    Starter Pinion on 1975 9.9Hp Evinrude

    I removed my manual starter to get at my carburetor and the spring came unwound. When re-assembling it, I simply rewound it back into the cup and put the rope part on top, etc. When it went onto the motor, the pinion gear doesn't seem to line up with my flywheel teeth like it should, when I...
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    Fuel Hose - 9.9Hp 1975 Evinrude

    I cleaned my carb today and would like to change the fuel hose that goes from the fuel pump to the carb. Would you know what diameter of hose I should get and if it is a special type or just a regular fuel hose.
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    Boat's Outboard Rating

    I have an aluminum Springbok fishing boat. I think it was made in 1975. Anyway, when I read the metal tag on the transom for the maximum outboard rating, it isn't clear to me what it is. The tag says this: 943475 ____ 25 ____ Alum. Goods (the ___ indicates a blank space) I assume the...
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    Adjusting the Spark Plug Gap

    This may be another one of those dumb questions, but how does one reduce the gap of a spark plug? I have one of those round spark plug gappers and if my gap is to little, I use that little hole in it to bend out the electrode to the desired gap. My question is for when the current gap is too...
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