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Pinned Cleaning Carburettors using Threebond

Discussion in 'Tech Tips' started by kiffsta, May 31, 2015.

  1. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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    Hey Guys

    I have had some really great success using Threebond Engine Conditioner to fix up some carbs so I thought I would share how it all works.

    First off, buy can of Threebond Engine Conditioner, they are about $20 for a 240mm can .
    threebond.jpg



    As you can see below, my carbs were a mess, jets, emulsion tubes, screws etc were in a bad way from a bike that had sat for three years. I set about removing the brass bits which included the main jet, slow jet, air \ fuel mix screws and emulsion tubes. I have them a quick clean using Carby clean to get the chunky bits off.

    zzr 003.JPG zzr 004.JPG

    I pulled the carbies apart, then put them in a glass measuring cup ( a jar will do) , I then sprayed threebond in the jar, it will be a foam at first but will settle into a liquid in a few mins.

    carbs 011.JPG

    Leave them in the jar for a few hours or overnight, I give them a quick swirl everyone hour or so just to move the liquid around. When you are ready to pull them out, drain the excess fluid out and dry your parts on a clean rag. I then used my compressor to blow off any residue and ensure all the little cavities in the jets, emulsion tubes etc are clear.

    carbs 020.JPG carbs 021.JPG

    Important Note, do not put anything rubber in there, just your metal bits.
     
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  2. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Some Threebond action on the main bodys

    Threebond leaves a residue coating so I give them a good rinse in a bucket of very hot soapy water then a good time out in the sun (or straight into the ultrasonic cleaner)
    A toothbrush helps with any really caked on junk.

    T 1.JPG
    T 3.JPG T 2.JPG

    T 4.jpg T 5.JPG T 6.JPG T 7.JPG
     
  3. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    T 8.JPG T 9.JPG T 10.JPG T 11.jpg
     
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  4. Evo

    Evo Well-Known Member

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    This gear looks impressive. Where can you get it from?
     
  5. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    I always get mine from Repco

    From memory theres a couple of types .... for diesel engines etc
    Get the one in the photos above

    It was originally made for Subaru to clean the inlet manifold and throttle body

    http://www.threebond.com.au/aerosols.html
     
  6. Th3_Huntsman

    Th3_Huntsman Senior Member Premium Member Contributing Member

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    If in a pinch to get rid of the residue normal carby cleaner does the job
     
  7. Mclaren

    Mclaren Well-Known Member Contributing Member

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    Repco or bursons auto

    To clean I used hot water then petrol
     
  8. Scotchy

    Scotchy Active Member

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    Clr clear mix with water in ultra sonic works well also
     

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