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-techtalk:ih:carb01b [2020/04/01 20:12]
– [IH: Carburetor, Intake Manifold & Exhaust Systems - Sub-01B] hippysmack
+
+techtalk:ih:carb01b [2023/12/28 22:04] (current)
– hippysmack
@@ Line -7,4 +7,5 @@ removed created
   * [[techtalk:ih:carb01a|Linkert Carb Identification]]
   * [[techtalk:ih:carb01c|Linkert Carb Functions, Adjustments, Tuning]]
 
 ====== Cleaning ======
   * The general appearance of the inside of the carb is not necessarily a good indication of its condition. \\ It can look spotless and have clogged jets, or look cruddy and have clear jets.
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      * An overnight soak in a solution of Pinesol and water followed up with a good brush down with a toothbrush then rinse and air dry. ((http://www.hotrodders.com/forum/pinesol-really-does-clean-carburetors-amazingly-pics-inside-248810.html)) \\ See also [[techtalk:ref:tools127#general_cleaning_and_stuck_gaskets|Soaking parts]] in the REF section of the Sportsterpedia.
      * A 20 minute to up to a few days soak in a gallon of Gunk (or other) Carburetor Cleaner that has a basket inside for small parts and lowers in the can with a handle, rinse, air dry, use.
      * Soak it in mineral spirits for a few days. ((Monte03 of the XLFORUM httphttps://www.xlforum.net/forumsforum/showthread.phpsportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/47937-cleaning-a-carb?t=185361)) 
      * You can use acrylic paint thinners for cleaning up carb parts. It melts the fuel varnish right off. ((russzx6 of the XLFORUM httphttps://www.xlforum.net/forumsforum/showthread.phpsportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/47937-cleaning-a-carb?t=185361))
      * An aerosol spray carb cleaner will also work but may not loosen all of the build up in the jets or orifices in the carb body if they're not directly sprayed through. 
   * Blow out all holes, jets and orifices thoroughly with compressed air after cleaning.
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 Make sure to remove any rubber or plastic parts before soaking. Also check the label for safety precautions. \\
 Parts that have been sitting for years may have to be soaked for about 24 hours or even days. \\
 |  Carburetor Cleaner ((photo photos by Hippysmack))  ||
 |{{techtalk:ref:genmsr:parts_cleaner_1_by_hippysmack.jpg?direct&300|}}|{{techtalk:ref:genmsr:parts_cleaner_2_by_hippysmack.jpg?direct&300|}}|
 
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 However, this setup works better than putting the carb directly into the vice. \\
 The carb is set upright as 'in use' making adjustments more straight forward. \\
 {{:techtalk:ref:tools:carb_stand_1_by_ironmick.jpg?direct&150|}} ((photo by IronMick of the XLFORUM httphttps://www.xlforum.net/forumsforum/showthread.phpsportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/47937-cleaning-a-carb?t=185361)) 
 {{:techtalk:ih:carb:bendix-zenith_carb_12_by_the_doctor71_of_the_xlforum.jpg?direct&200|}} 
 ((Pic courtesy of The Doctor71 of the XLFORUM)) \\
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     * Whenever a welsh plug is removed, a new one should be installed in it's place, especially since a large part of the time, removal of one means destroying or deforming it.((1959-1969 HD Sportster FSM))
     * Drill an 1/8" hole thru it (just deep enough to break thru to the other side) off center and pry it out with a small punch. Be careful not to drill too deep which could destroy the nozzle assembly or casting. While prying it out, be careful not to damage the casting counter-bore edges around the plug.
     * You can also drill a small hole in it and use a small tap just big enough to start in the hole. ((snake173 of the XLFORUM httphttps://www.xlforum.net/forumsforum/showpost.phpsportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/108002-zenith-bendix-carb-rebuild-kits/page3?p=3646523&postcount=1#post2687578)) \\ Thread the tap in the hole. \\ When it gets to the bottom of the passage, it will force the valve out with out damaging the bottom of carb passage. \\ Make sure to clean all the chips out to keep from plugging up passages later.  
   * Installation: ((HD Service Bulletin #518 dated September 10, 1965 pg OC-189))((1959-1969 HD Sportster FSM)). 
     * The plug should be seated  with a flat end punch that is slightly smaller than the diameter of the plug. The plug should be flat and not concaved to assure a tight fit. If leakage is suspected due to a rough or damaged welch plug seat in the casting, apply a small amount of epoxy or suitable sealant to the edges after installing it. 

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