Milky build up in carbs

Jobu

Schrickter
Location
West Michigan
I have a set of Black Jack 44's and am getting a milky build up in the cars. I'm running prok flame arrestors. I initially ran with no jackets and had the milky build up. Tried the jackets and it is no better. Is this normal? I have some Thrust OEM flame arrestors, but they need to be modified because they interfere with my ADA head. Any suggestions???

I did some quick research and it seems to be a common problem....FullSizeRender.jpg
 

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
Water mixed with premix. What oil are you running?

I had a big problem with water ingestion when i used cheap tcw3. I switched to quicksilver and my problems went away. I now run yamalube because i found it whole sale

I did a test.

Mix water and you oil in the ballpark of 4:1 - 6:1, water : oil. Used spaghetti jars work good. Shake violently, let sit, watch as it settles. Do a few jars at a time, one with your oil, your friends oil, cooking oil.

I did this test, my oil turned to a frothy mess the quicksilver seperated like cooking oil. I used to choke out my motor all the time, not it pushes the watrr out like it is supose to.
 

Jobu

Schrickter
Location
West Michigan
I'm running Castor Maxima 927. I usually run quicksilver but had a gallon of Castor sitting on the shelf. It will be interesting to see if switching back fixes this...........
 

DAG

Yes, my balls tickled from that landing
Location
Charlotte, NC
Holey water ingestion batman! Looks like your hoodseal side is the heaviest. Might want to inspect the seal for damage or the hood hook and hood latch/strap relationship is not applying even pressure across the seal creating uneven pressure across the seal.
 

Jobu

Schrickter
Location
West Michigan
I am positive that my hood seal is good. The ski does run like it is ingesting water, runs really strong. The motor is new, only 2 tanks of gas thru it so far and I'm running a richer oil to gas mix than normal. Maybe that is causing it to froth more?
 

SUPERJET-113

GASKETS FOR CHAMP BRAP!
Site Supporter
I'd say get rid of the outerwears to begin with..
Also high humidity does that too and not to mention how extra humid it is in the engine compartment this time of year where you are located.

When I lived in Nebraska my carbs looked like that a lot too in the middle of the summer(not as chunky looking though, just thick white froth)..
Thanks to Blackjack and MSD TL, my engine ate water like a champ! lol
 
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AMSOIL hp marine stuff separates like it's supposed to and my carbs look the same. I'm also running am filters and know it's getting water at some point as well. Seems to run fine and can't tell a difference from froth or no froth


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Don't know what ski you have but mine did that when my breathers did not go all the way down to the bilge. They only extended about 3" down from the hood liner and dumped water right about the same height as the flame arrestors, I lengthened them and cleared up about 95% of the milky.
 

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
I think y'all might be getting alittle out of scope. The point is waters getting into the carb why are we talking about oil when waters the root problem...

I brought it up because one oil i used actually mixed with water. I had frothy mess everywhere including on my plugs and i didnt understand why. A friend switched oil and it cleared up, which is when i did the test i mentioned. I switched oil and it cleared up for me too. I speculated it had something to do with the dyes in the oil but im really not sure.

I think water gets into all carbs. Sometimes its too much water, but other times its a small amout of oil that is sticking around to long. Just my experience.
 

CRJ

Hibernating
Location
Toronto
that is water and oil mixing. I would look into your reed condition, it seems your getting blow back in your carbs. very little if any fuel should get north of the venturi.
 

SUPERJET-113

GASKETS FOR CHAMP BRAP!
Site Supporter
This is my opinion and not necessarily the OP's current problem(and you all can do what you want), but I would like to say that "Outerwears prefilter" were originally designed to keep dust and dirt out of carbs in MX bikes, quads, etc... Then someone got the idea to market them to PWC owners to keep water out of the carbs.

Ive tried these before many years ago and all they do when they get wet is not help you engine breath like it should. My Dasa 800 w/ dual BJ 44's and TL, Bpipe,etc. couldn't even rev correctly with outerwears over some Proks single flame arrestors, and that was completely dry. When wet it hated it even more so.
My .02

Oh and you can spray them with silicone spray all you want... doesnt help.
 
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This is my opinion and not necessarily the OP's current problem(and you all can do what you want), but I would like to say that "Outerwears prefilter" were originally designed to keep dust and dirt out of carbs in MX bikes, quads, etc... Then someone got the idea to market them to PWC owners to keep water out of the carbs.

Ive tried these before many years ago and all they do when they get wet is not help you engine breath like it should. My Dasa 800 w/ dual BJ 44's and TL, Bpipe,etc. couldn't even rev correctly with outerwears over some Proks single flame arrestors, and that was completely dry. When wet it hated it even more so.
My .02

Oh and you can spray them with silicone spray all you want... doesnt help.

My feelings exactly. Also, once you spray them with silicone to potentially repel water, all they do is collect more dirt and clog up even more.
 

CRJ

Hibernating
Location
Toronto
This is my opinion and not necessarily the OP's current problem(and you all can do what you want), but I would like to say that "Outerwears prefilter" were originally designed to keep dust and dirt out of carbs in MX bikes, quads, etc... Then someone got the idea to market them to PWC owners to keep water out of the carbs.

Ive tried these before many years ago and all they do when they get wet is not help you engine breath like it should. My Dasa 800 w/ dual BJ 44's and TL, Bpipe,etc. couldn't even rev correctly with outerwears over some Proks single flame arrestors, and that was completely dry. When wet it hated it even more so.
My .02

Oh and you can spray them with silicone spray all you want... doesnt help.
Ive never understood the AM filters. Yamaha's stock single carb filters with a single screen keep out almost all water, and clear most hoods. They dont fall off, they dont clog, they do their job, and its why i horde them like gold.
 

BruceSki

Formerly Motoman25
Location
Long Island
This is my opinion and not necessarily the OP's current problem(and you all can do what you want), but I would like to say that "Outerwears prefilter" were originally designed to keep dust and dirt out of carbs in MX bikes, quads, etc... Then someone got the idea to market them to PWC owners to keep water out of the carbs.

Ive tried these before many years ago and all they do when they get wet is not help you engine breath like it should. My Dasa 800 w/ dual BJ 44's and TL, Bpipe,etc. couldn't even rev correctly with outerwears over some Proks single flame arrestors, and that was completely dry. When wet it hated it even more so.
My .02

Oh and you can spray them with silicone spray all you want... doesnt help.


At least someone on here has a brain. Pre-filters are like double bagging condoms. More friction/less fun and a higher chance of getting signed up for an expense you didn't plan on.

Just say NO to prefilters!
 
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