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    84 Mariner 9.9C Carb Issues

    Ok, so I tried taking my motor out on the lake this weekend, and had no luck. It turned over for a little while but then died out. Got home and it appears that it was flooding out. Now the primer bulb on the fuel line was hard. Fuel was coming back out of the carburetor into the air box. Do you...
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    1984 Mariner 9.9C Factory Compression

    I have a 1984 Mariner 9.9C motor Serial #682C-049356. It has great compression; even at 120psi in both cylinders. I don't have manual for this book, so I was curious if anyone new what the factory compression was. Is 120psi what it was from the factory. Just a question out of curiosity. Your...
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    1984 Mariner 9.9C Carburetor Leaking from Bowl Gasket

    I have a 1984 Mariner 9.9C motor Serial #682C-S049356. I rebuilt the carb a few months ago, but with work and other obligations haven't had much time to work on it. The motor turns over fine and idles great and even appears to do good at full throttle. This all based on running it in a can in...
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    1984 Mariner 9.9C

    I have a 1984 9.9C Mariner, made by Yamaha, and yesterday I was running it in a bucket of water and it seemed to be flooding out cause it was running real sluggish. Now as a precursor to this I must note that I had it on the motor stand and it fell over and broke the little ring that is on the...
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    Vintage 35HP Evinrude/Johnson Bigtwin

    Ok fellas, after rebuilding my 81 Evinrude 25hp, I've now got the Johnnyrude fever, and decided at some point I'd like to see about get either a 57 or 58 Evinrude or Johnson 35HP. I'm leaning toward Evinrude, simply for the color scheme. Aside from these motors requiring a pressurized tank and...
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    93 Johnson 25hp Backfire-ing multiple times at lower RPM'S

    Re: 93 Johnson 25hp Backfire-ing multiple times at lower RPM'S
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    93 Johnson 25hp Backfire-ing multiple times at lower RPM'S

    Re: 93 Johnson 25hp Backfire-ing multiple times at lower RPM'S My motor doesn't have a charging system but as raceone mentions the rectifier is attached to the starboard bracket. See part #33 in the attached diagram for the starboard bracket. Keep in mind this diagram is on an 81 25HP, but the...
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    Jack Plate for a 14ft V-bottom with Short Shaft Transom

    Re: Jack Plate for a 14ft V-bottom with Short Shaft Transom See pictures below of my 25HP. Like I mentioned in previous post, it's now just barely below the keel.
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    Jack Plate for a 14ft V-bottom with Short Shaft Transom

    I have a 78 Starcraft Seafarer 14ft boat with a short shaft transom. I have two motors that I use interchangeably with this boat. (1) a Mariner 9.9hp and (2) an Evinrude 25 hp. The anti-cavitation/anti-ventilation plate on the mariner sits flush with the bottom of the transom. However, on the...
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    81 Evinrude 25 HP convert to 35 HP

    Ok so I know this question has been asked a 1000 times if it's been asked once. I have an '81 Evinrude 25HP. In my research for the '81 year model everything associated with the power head between a 25hp & 35hp is exactly the same. That is, the crankshaft, pistons, rings, all bearings & seals...
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    Evinrude 25 HP Starter

    Re: Evinrude 25 HP Starter See picture below of how it's wire at the motor. As you know the solenoid has (4) connection Posts. (2) Large and (2) small. In the picture starting from right to left the large black battery wire connected to the water bypass cover, the large red wire goes to...
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    Evinrude 25 HP Starter

    I have an 81 Evinrude 25 HP and can't get the starter to engage. It was working fine and then all of a sudden it wouldn't engage. So I ordered a "new" starter and got it installed and it does the same thing; just spins. Keep in mind that the battery cables are brand new, the battery is brand new...
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    Overboard Safety Switch

    Re: Overboard Safety Switch Got the new kill switch in. It's a dual function type. I order it off of ebay, it's a sea dog universal safety switch. It has 4 prongs on the back for either killing through the ignition system or the magneto. At first I had it hooked up to the ignition prongs as I...
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    Overboard Safety Switch

    I recently re-built an 81 25HP Evinrude for use on my 14ft aluminum V-bottom boat. Im in the process of breaking it in right now, I've got about 5 more hours for the 10 hour breakin in. Anyhow, this motor doesn't come stock with a Man Overboard Safety Switch, just the standard kill switch. I was...
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    81 Evinrude 25 HP - No fuel to bottom cylinder

    Re: 81 Evinrude 25 HP - No fuel to bottom cylinder Come to think of it, in order to do the Joe Reeves timing method, with out the motor running, the motor can't be in forward gear, as it won't start due to the neutral start switch. Do I disingage this and then go through the advance timing...
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    81 Evinrude 25 HP - No fuel to bottom cylinder

    Re: 81 Evinrude 25 HP - No fuel to bottom cylinder Since I took that picture I've relocated the wiring from the charge coil to run behind that starboard bracket. That's where it states to run it in the manual, and looking at some old pictures from the starboard view that where it was before I...
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    81 Evinrude 25 HP - No fuel to bottom cylinder

    Re: 81 Evinrude 25 HP - No fuel to bottom cylinder Ok, here is my stoping point from last night. 1.)Does it the armature plate appear to be located properly. When I turn the throttle, first of all it very stiff, but as the armature plate is rotating it's barely making contact with the roller...
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    81 Evinrude 25 HP - No fuel to bottom cylinder

    Re: 81 Evinrude 25 HP - No fuel to bottom cylinder See item 1 in the picture below. Regarding the gasket that goes between the block and exhaust housing, the guy at the marine shop I bought it from, stated that no sealant was to be placed at these locations. However, reading through the manual...
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    81 Evinrude 25 HP - No fuel to bottom cylinder

    Re: 81 Evinrude 25 HP - No fuel to bottom cylinder Continued.
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    81 Evinrude 25 HP - No fuel to bottom cylinder

    Re: 81 Evinrude 25 HP - No fuel to bottom cylinder Continued.
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