Mystery hose on 1990 Johnson 200

[metriccrescentwrench]

I bought this engine on ebay, now I'm trying to undo all the redneck engineering from previous owners (and there's been a lot). I pulled the carb bodies to install rebuild kits and found what looks like another example of someone's handiwork, but darned if I know what this hose is supposed to go to. I don't see it in either my factory service manual or any online parts diagram. It's about 3/8" ID, and I'd be willing to bet it didn't come from the factory with a bolt stuck in it like this.

[Dhadley]

From the factory it has a plastic cap on it. The caps would sometimes crack and split. Nothing wrong with a plug.

The V6 intake manifold is made up of a V4 manifold on the top 4 cylinders and a dual throat manifold on the bottom 2. At the bottom of the V4 manifold is a drain which isn't used on the V6. the bottom dual throat intake has the drain. Therefore the cap or, now, plug.

[metriccrescentwrench]

Simple enough. Thanks.

[Dhadley]

BTW, check out the parts breakdown at shop.evinrude.com and you'll get a better "picture" of how they did it.

And be sure to get rid of the white tie wraps and get the black ones.

[Faztbullet]

That 2nd pic is inverted.... that will tease the ole thinker

[metriccrescentwrench]

And be sure to get rid of the white tie wraps and get the black ones.

All the hoses are getting replaced also, a few are starting to show cracks, and one carb didn't even have a tie wrap on it (just finding THAT is probably worth the price of the rebuild kits).

That 2nd pic is inverted.... that will tease the ole thinker

I don't even know how I did that. When I inserted it in the post I thought it looked odd, but I was getting hungry and eating was more important than figuring out what was wrong with that photo.