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Carb Gunk

  • Thread starter Thread starter shibby_cbs
  • Start date Start date
S

shibby_cbs

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so my carbs have been givin me trouble again and since i was going to need them out to replace air box boots i figured i would plull them apart again and dip them for the second time...well this is what i found inside my carbs...what is causing this buildup...could it be the gas i am using?

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I am getting the smae thing with my carb. IU just took it apart last night and agian the same yellowish ooze . I dont about you but i run staight 87 octane in the bike ( the cheap stuff). the thing is this last tank i ran a thing of sea foam through it as well. Sorry i cant help :(
 
aeroaj said:
I am getting the smae thing with my carb. IU just took it apart last night and agian the same yellowish ooze . I dont about you but i run staight 87 octane in the bike ( the cheap stuff). the thing is this last tank i ran a thing of sea foam through it as well. Sorry i cant help :(
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Well I was runnin 92 in mine....so we are on both sides of the spectrum....and no I didn't run 92 because I think its better...just so happend to be more conveinant at the time
 
Octain said:
Perhaps he shoulda cleaned those carbs:-\\\
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what...did i spell somethin wrong???

but seriously...does anybody have any clue whats going on here...i would hate to get these carbs all back together only to have them clog up with this crap again
 
I had that problem for quite some time, only it would show up right after I dipped them in that Berryman's you have on your bench. Sometimes it was yellow and sometimes it was white. It turns out its oxidation from the dip. I suggest you re-dip the carbs then throughly rinse and dry them (i used an air compressor). After that spray a light coat of WD40 on the bodies. It solved my oxidation problems.
 
Mr Toga said:
I had that problem for quite some time, only it would show up right after I dipped them in that Berryman's you have on your bench. Sometimes it was yellow and sometimes it was white. It turns out its oxidation from the dip. I suggest you re-dip the carbs then throughly rinse and dry them (i used an air compressor). After that spray a light coat of WD40 on the bodies. It solved my oxidation problems.
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that makes lots of sense...that stuff does tend to stick to whatever it comes in contact with...when they finish the dip i will run them through the parts washer...blow em off with the compressor and let em dry....then the wd-40...sound good?
 
Mr Toga said:
That's what I did. Took me 4 times to figure it out though lol
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I know some people boil them in various solutions including perhaps some vinegar. Apparently clean carbs exude alot more stuff than you would think. Maybe that boiling would help.
 
I like to soak em then clean em with soap and water and a tooth brush. Clean and blow out all the little passages with carb spray, compressed air and a little piece of brass wire.
All nice and dry then hit em with wd-40 while putting em back together. Liberally lube the new o-rings and all the threaded parts. I even spray the new gasket with a shot or two of good ole dubya-d.
Replace the crappy phillips head screws with the screw of your choice, long as it aint another crappy phillips head screw.
Doing all this in a nice clean lint free enviroment.

Its actually an enjoyable experience.
 
posplayr said:
I know some people boil them in various solutions including perhaps some vinegar. Apparently clean carbs exude alot more stuff than you would think. Maybe that boiling would help.
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Ooh that's right. Boiling didn't work for me. I would boil for 2 hours but I still had residue.
 
Water has surface tension and may hide in corners. I rinse with Gumout followed by compressed air.
 
Don-lo said:
Water has surface tension and may hide in corners. I rinse with Gumout followed by compressed air.
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Not sure what the carb bodies are made of but it is probably pretty porous metal and will hold the Berryman's in the metal unless flushed out.

As you say the water has a high surface tension and probably doesn't mix well with Berryman's in the first place.

RenoBruce has described the large amounts of crap he sees come out of carbs from boiling. I wonder if that is not mostly carb cleaner that has saturated the carb bodies and only comes out after the boiling.

Carb cleaner, Gumout or brake cleaner anything that can cut the Berrymans would probably work and should be a standard part of the process.

I have never dipped my carbs, but need to do some BST36SS's was not exactly sure, I would have probably been inclined to wash with hot soapy water after the dip but will be more careful in the future.
 
After dipping my carb bodies in Berryman's for 12 hrs, I boiled them gently for 30 minutes in clear tap water to get the Berryman's residue out. They turned dark gunmetal gray. It seems that any boiling, whether with lemon juice, clear water or anything else darkens them.
 
1948man said:
After dipping my carb bodies in Berryman's for 12 hrs, I boiled them gently for 30 minutes in clear tap water to get the Berryman's residue out. They turned dark gunmetal gray. It seems that any boiling, whether with lemon juice, clear water or anything else darkens them.
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Just thinking about it, that probably looks quite nice :)
 
I boiled one carb in diluted lemon juice and the carb body turned dark. Might have boiled it too long or used too much lemon concentration though.

I've also experienced the white corrosion leaching after using carb dip. Blowing the carbs dry with compressed air is recommended, as is spraying them really well with carb spray as well. A WD-40 spray-down sounds like a good idea to me.
 
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