Where's the carburetor

[The Big LO]

I realize this is off the charts simple. but i can't find the carburetor on my motor? There is a black box/housing with 12 or more bolts on the boat side of the motor that i haven't taken off. two of the screws at the bottom of the housing had some oil on them when i removed them so i was afraid to take the box off any further (in fear a bunch of oil would come out. So where is it? what does it look like? i can easliy find the carburetor on my E-350 van or my much older evinrude. Not on this thing..

The motor in question is a 1990 200hp Evinrude XP

thanks!

 

[bankerjohn]

Re: Where's the carburetor

Take a look at this parts diagram ...

http://www.boats.net/parts/search/BRP/EVINRUDE/1990/E200CXESM 1990/INTAKE MANIFOLD/parts.html

 

[Dhadley]

Re: Where's the carburetor

Yep, that's the airbox cover. Behind that is where the carbs live. Yes, there will be some gas/oil in there but it's not an issue. Do not run the motor under a load with that cover off.

 

[1946Zephyr]

Re: Where's the carburetor

If you can't find the dammed carb. better leave it alone.

 

['83Crestliner]

Re: Where's the carburetor

If i were you i might want to take Zephyr 's advice. However, if you are going to get into doing the work you need a shop/service manual. You may also want to check out youtube, that would also be helpful.

 

[The Big LO]

Re: Where's the carburetor

Yeah i figured i would get a few comments like that, what can you do? It needs fixing, and i don't have any money. I got a manual but it hasn't come it yet. So far i've changed the fuel filter, spark plugs/wires and put a thing of Sea Foam in it and it's running a lot better. It still seems to be only running at half capacity. it takes 20 or more seconds to level out with 4 people on the boat and makes out at 40mph. It's a 20' Fishing boat with a 200hp on the back. That sound lacking to anyone else? Also i run it all day and it idles whenever i want it to except: every time i go to load it on the trailer. It's like it knows i'm about to put it up and it doesn't want to go. It just keeps dying and i have to keep restarting it and quickly adjusting the boat at the same time to get it straight on the trailer. It dies and restarts like 10 times before i can get it on the trailer. It always starts right back up. The one thing i've noticed is i always drop someone off to go get the truck and then put it in reverse. you think that could be causing the problem? Going in reverse? You guys know of any motor problem that comes up after you try to reverse it that would make it keep dying from then on?

 

[mables]

Re: Where's the carburetor

sounds like you are having trouble under load, could be your high speed jets are slightly clogged, mine would do the same thing then I cleaned the high speeds with pb blaster and compressed air and the next time I took it out I was able to power load it on the trailer, of course it is a cement bottom ramp and not sand or silt for those who are concerned.

 

[Dhadley]

Re: Where's the carburetor

I'd agree that the carbs need a good cleaning but if you choose to run it just keep something in mind -- On an OMC motor like yours if a cylinder or multiple cylinders is not getting fuel they're not getting oil either. Pistons don't like that.

As for the loading, those motors are kinda sensative about exhaust backpressure. While most, if not all, of the loading issues may be with the dirty carbs, the water depth in the midsection may be affecting it also. As the boat starts up the trailer if the bow comes up the motor will go deeper in the water which means more water in the midsection which means more backpressure. That can contribute to the stalling.

 

[The Big LO]

Re: Where's the carburetor

What can yo do to correct this backpressure problem? I have noticed that if i have the motor at full tilt it doesn't have much power. I have to keep it slightly elevated to get enough power to go anywhere. If i bring it all the way down it really bogs down.