Yamaha 200 Carbs drain ports ?

[jjjtronics]

Thanks stillr,
I have a water filter/separator ( big ), and I drain it every week. And water still gets to the separator/filter on the engine, so I drain them both every week, but the carbs still getting clogged with the jelly stuff that water/oil/gas together form, and the engine starts giving me problems about every month, so for me is a once a month carbs removal/clean.
I will install the drain screws and try that.

[Monkey Butler]

If you have water coming out of your vent hose when you fill up then I think you have found your problem. Water is getting into your tank through your vent. Any water in your tank would be at the BOTTOM and it would not have access to the vent which is at the top of the tank. The water that spits out must be sitting in a low point in the hose. I wonder if you could trick someone into tasting it to see if it is salt? Condensate would be fresh.

If you can route your vent hose so that it goes up some from the thru hull first that will help prevent water from getting to the tank.

[Stillrunning]

Originally Posted by jjjtronics

Thanks stillr,
I have a water filter/separator ( big ), and I drain it every week. And water still gets to the separator/filter on the engine, so I drain them both every week, but the carbs still getting clogged with the jelly stuff that water/oil/gas together form, and the engine starts giving me problems about every month, so for me is a once a month carbs removal/clean.
I will install the drain screws and try that.

When I had water issues I never noticed any of this jelly stuff you are talking about. What coloer is this jelly stuff?

[THEFERMANATOR]

I have the same jelly stuff in my filter every 5 hours or so. I just chock it up to E-10 as others ahve the same issues with it. And those carbs have drains in them already, it's the bolt that goes into the bottom of the bowl to allow access to the jet in the bottom. You can see it in your 2nd picture.

[Stillrunning]

Originally Posted by THEFERMANATOR

I have the same jelly stuff in my filter every 5 hours or so. I just chock it up to E-10 as others ahve the same issues with it. And those carbs have drains in them already, it's the bolt that goes into the bottom of the bowl to allow access to the jet in the bottom. You can see it in your 2nd picture.

I thought that was a bowl drain on the bottom of the bowl. I still don't get this jelly stuff you guys are talking about. Are your fuel lines rated for E10 gas or are they old? Is the jelly stuf black in color?

[Monkey Butler]

Oh, and those small screws in the last picture where you have arrows pointing to them with "Drains?" photochopped in... Yes they are the bowl drains and especially with the motor tilted up they will remove all but a drop or two from the carb bowls. There are even little drainage ditches molded into the bottom of the bowl leading to these screws to help them drain more. The larger brass nut is the main jet and it sits higer in he bowl so it won't drain everything.

But still, identify how the water is getting into your tank.