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    Ignition Switch Ground

    (1997 90 hp spl non vro with factory controls) Does anyone know which ignition switch wire provides the ground for the overheat buzzer. I can't make heads or tails of the shop manual drawing but assume there is hot all the time to the horn and ground is applied to activate the horn. I get...
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    Should water becoming from lower unit?

    Just replaced my water pump (1997 90 hp spl), now I have water coming out the two "side holes" in the front of lower unit besides coming out the the center hole. Is this ok or did something slip out of place?
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    How does the T-stat Pressure Valve work

    I have replaced them but don't understand what they actually do since they don't appear to block anything? The T-Stat controls the water to the heads
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    90hp Output Water Flow from Lower Unit

    Have a 1997 90HP 60 degree SPL that I just replaced the water pump in. I have never noticed water coming out the two "front" side holes in the lower unit before. Always just the pee tube and the little hole in the front center of the lower unit. There was a lot of old oily gunk in those...
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    Extra O-ring in water pump kit - what's it for?

    Ordered the basic Sierra water pump repair kit for my 97 90HP SPL. Have one extra o'ring in the kit I don't know where it goes. So far I have used the impeller plate gasket, metal plate, o'ring for the impeller, impeller, o'ring between impeller housing and water pump housing, Big o'ring for...
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    What's the shift rod trick for lowwer unit removal??

    Trying to remove lower unit on a 60 degree 90HP SPL. I have removed the spring clip and pushed the throttle forward (and backward) but cannot get the rod to come loose from the hole it sits in. How does that darn thing come out. I'm assuming the whole rod comes out when the lower unit is removed.
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    Cooling Question

    Replaced the thermostats in my 1996 90hp SPL. On running the engine up (on muffs) I noticed the water initially is not a steady stream but more of a hot water sputtering spray and air for about 30 seconds and then it goes to a heavy cool steam. It does this every time now when I start the motor...
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    2 port Vacuum Fuel Pump ?

    Have a 90 HP SPL Non-VRO basic vacuum fuel pump - what is causing fuel to leak out the back of the pump? Looks like there is some type of "weep" hole built in the cast and the fuel is coming out of there. Rebuilt this pump with a new rebuild kit a week ago and it wasn't leaking...
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    Help with ID ing this connector use

    1997 90 SPL non VRO - there is an "empty" black plastic female connector (black and tan wire) coming out behind the main wiring harness loom that is located right behind the starter solenoid . Having some over temp issues and think previous owner may have disconnected something...??? Does...
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    Need help checking overtemp buzzer - 90 hp

    I have a 1997 90 SPL. I suspect the boat going into limp mode because of overheating but get no buzzer alarm. No beeeep when key first turned on I can ground the brown wires from either head sensor (going back to harness) and nothing. I can disconnect horn at plug and apply 12V and horn...
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    Thermostat Installation

    Does the big end (opening end) of thermostat point to the engine block? Could go either way. I think the parts breakdown shows it that way but want to make sure before it is buttoned back up ( 1997 90 HP).
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    90 spll fuel pump rebuild

    I have a 1996 90 spl with no VRO. Just rebuilt the fuel pump (simple vacuum pulse pump) with the simple Sierra kit. Now I have gas leaking out what I assume is a vent hole in the top of the pump where there is a small spring and plunger....didn't do that before. What I have done wrong?
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    Need some help with overheat horn testing

    Suspect my 1996 90 SPL non VRO may be going into limp mode because it is getting hot. I get NO beep (only had boat a short time and didn't know about this) when I first turn the key on A forum member recommended I test the sensors. I disconnected each of the brown plugs coming off the head and...
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    90 HP Question

    New to outboards and trying to resolve some issues with my "new" 1997 Evinrude 90 HP. It is a E90TSLEU SPL with no VRO. Should this model have a overheat alarm buzzer? Does it/should it have "limp mode" ? Does it even have a thermostat? I can't find one in the parts listings - maybe...
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    Cross flow or 60 degree ID

    I have no numbers on my engine (plate is worn off), It is a 1998 90 hp Evinrude non-VRO (commercial grade I think). How do I know if it a cross flow or a 60 degree engine? Does this engine use a thermostat? I think it is a E90TSLECM??
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    General Stator Power Pack Question

    Will a faulty stator or power pack cause sporadic running. My 1998 90 hp SPL runs fine and then suddenly loses power like it is running out of fuel. After idling back and cruising at 1500-2000 RPM for a time (never shutting the engine off), engine will take throttle for a couple of minutes then...
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    Fuel or Electrical

    1998 Evinrude 90 SPL NON VRO. On going problem (new boat to our family) . Fuel line and fitting changed from tank to engine. New fuel/water filter. New plugs. Good compression all cylinders. Here goes: Engine will start and run fine. On plane running at about 3400 RPM for about 5 -10 minutes...
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    Stumped on which year 90

    Boat I bought supposedly came with a 1999 Evinrude 90 SPL according to the seller (and engine cover). Spark plugs in there now (QL77JC4) show up on older 90hp models not late 90's. The engine ID tag is unreadable. Is there a place a can find some numbers to see what I have before I put the...
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    1999 90 spl Question

    I have a 1999 90 hp Evinrude SPL (Non VRO). There always seems to be a slight miss at an RPM from 1500 up to redline. By miss I can see the motor cover shakes/twitches pretty rhythmically...not just once in a while. Engine idles fine. Any ideas what to check. Have not had this boat long so...
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    Winch post

    Cannot get my 1999 deck boat on the trailer so the bow comes over the roller on the winch post. It always want s to come in below and we have to back it off and physically raise the boat...PIA. What the fix?
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