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    2004 150 yammies

    I have the opportunity to purchase new twin 150's (carbureted) yamahas for my 24' Grady. I have no personal experience with yammies, but i suppose there like any other outboard....there only as good as they operated and serviced. I take very good care of my "toys" and perform all of the easy...
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    91 150 powerhead install

    I put my powerhead back together over the past few days so i was wondering at what point can i install it on the midsection? Do i put the fuel and electrical system on first, or wait until after the powerhead is on? my manual shows the torque pattern on the head bolts, them shows several...
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    1991 150 pre-dress out pressure test

    i've just begun my rebuild on my 1991 150 hp evinrude. Today i installed the center main bearings, seal rings, lower and upper seals and new lower bearing. Tomorrow i'll install the pistons and seal the block. Is there a way to effectively pressure test the block at this point, or do i have to...
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    stainless fuel tank

    When i removed my two fuel tanks to get at the stringers, i noticed that one was made of stainless steel while the other is a factory aluminum. Should i be concerned with this "custom" fuel tank corroding (i think its 316, but it could be 304) since all of my boating occurs in saltwater? I...
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    stainless fuel tank

    When i removed my two fuel tanks to get at the stringers, i noticed that one was made of stainless steel while the other is a factory aluminum. Should i be concerned with this "custom" fuel tank corroding (i think its 316, but it could be 304) since all of my boating occurs in saltwater? I...
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    wiring fuse panel

    I'm in the process of rewiring my boat and have read several posts regarding putting a single in-line fuse to protect the distribution panel. Seems kind of redundant since the distribution panel has fuses for each piece of equipment, i.e. trim tabs, windshield wipers, lites etc..Unless of...
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    stringer gap

    When i removed the starboard side stringer, i noticed there was a 1/4" - 3/8" gap between the bottom of the stringer and hull. Could this have happened when they installed the stringer system and the polyester shrank as it cured or is it by design? I thought of filling that gap with thickened...
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    test aluminum gas tank for leaks

    I've pulled both gas tanks out of my 24' Grady White to replace the stringers and was wondering how can i test the tank for leaks. Actually, it has two tanks, both 100 gallons. One is a factory aluminum but the other is a "custom" stainless steel. I' ve never run the boat, so before i fuel...
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    1991 150vro rebuild?

    While i'm waiting for my crank to come back from the shop, i rebuilt the rest of my carbs and began wondering about looking into the vro. The carbs were spotless and the oil side of the vro has been disconnected. I know there's a float assembly in the vapor separator, as well as misc diaphrams...
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    spray painting outboard

    my sun bleached cowling and midsection are in desperate need of tlc. I've wet sanded (220) the cowling and mid section and wiped with acetone. Is there a better product for fiberglass? It seems to leave a smudge that's incredibly difficult to remove. Also, should i use a primer/sealer first...
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    when to throw in the towel (and buy another one

    As I continue to pour large sums of money and time into rebuilding my twins, somewhere in the back of my head a little voice is telling me to buy another set (or one large one). At what point do you throw in the towell?
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    1991 evin crankshaft issues

    After closely inspecting my crankshaft, i've discovered a few issues. First, there is a lot of rust in the bottom where the female splines are and also a small circular ring right beneath the seal housing...where the two seals meet. I've been told OMC changed that design starting in '92 and put...
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    1991 150 carbs

    While my powerhead is at the machine shop, i'd thought i would tackle rebuilding all 12 carbs (I've got twins). She's been on the hill awhile so i'd rather not take a chance on clogging a jet. Speaking of which, my jets are 57D (high speed), 44 intermediate and 34 (idle air bleed). My parts...
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    1991 Evinrude 150 powerhead check valves

    Upon inspecting my repaired powerhead, i noticed three small, oil passage holes for the crank and three small holes on both faces where the intake manifolds mount. I've cleaned all the oil and drain passages with compressed air. Which ones are supposed to be check valves? And wich way are they...
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    1991 150 lower unit

    Now that I've got the driveshaft bearing housing in place and tightened the bolts, when i rotate the driveshaft in either direction, both in gear and neutral, i hear a grinding sound within the lower unit. But if i lift up slightly on the driveshaft and rotate it, i don't hear it anymore. I've...
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    lower unit lubrication

    I've got a pair of 1991 Evinrude 150's that I've just changed the driveshaft bearing oil seals and installed new water pump kits. So I'm ready to fill the gearcases. The OMC service manual states to "use OMC high vis gearcase oil only. There is no alternative." Okay, that was 13 years ago. Can...
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    counter rotation location

    I've been working on my two 1991 150's lower units..thanks to those who've helped me. But i've managed to switch locations so many times, i can't remember which one is the counter rotating one. How can I tell which one is which? I've always seen the counter rotating engines mounted on the left...
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    1994 225 Yammie smoking

    I've got a 1994 yammie that starts and runs fine until I slow down or troll for awhile. It misses sometimes at idle, but when i throttle up to 4200 or so it misses consistently for about a mile, then it runs like a scalded dog. I've rebuilt the carbs, checked linkages and water separator to no...
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    OMC or aftermarket parts

    I'm making a shopping list for parts I need for a complete rebuild for a 91 150 Evinrude "Spitfire Series" and was wondering if aftermarket gasket and seal kits were satisfactory. I know they are made to OEM specs, but do they perform like the original parts?
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    warning horn 1989 100 hp mariner

    When I turn the key on, no beep is heard, but if I wait 15 seconds, a constant beep is emitted, then it suddenly stops, then starts again. I've disconnected the black wire to the temperature sensor and removed both blue wires from the oil float switch to no avail. This is the second warning...
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