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techtalk:ih:carb01b [2019/09/08 17:24]
hippysmack [Idle Tube] 		techtalk:ih:carb01b [2023/12/28 22:04] (current)
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 [[:​techtalk:​menu|{{ ​ :​techtalk:​gototechnicalmenu.jpg|}}]] [[:​techtalk:​menu|{{ ​ :​techtalk:​gototechnicalmenu.jpg|}}]]
-====== IH: Carburetor, Intake Manifold & Exhaust ​Systems ​- Sub-01B ======+====== IH: Carburetor, Intake Manifold & Exhaust - Sub-01B ======
 \\ \\
-===== Bendix ​Carb Identification ​=====+====== Rebuilding the Linkert ​Carb ======
 See also in the Sportsterpedia:​ \\ See also in the Sportsterpedia:​ \\
-  * [[techtalk:​ih:​carb01#​bendix_zenith_i6p12_carb_1972-early_1976|Bendix basic carb information]] +  * [[techtalk:​ih:​carb01#​linkert_model_m_and_dc_carbs_1965_and_earlier|Linkert Carb Basic Information]] 
-  * [[techtalk:​ih:​carb05|Bendix ​Carb Functions, Adjustments,​ Tuning]]+  * [[techtalk:​ih:​carb01a|Linkert Carb Identification]] 
 +  * [[techtalk:​ih:​carb01c|Linkert ​Carb Functions, Adjustments,​ Tuning]]
  
-There are a lot of Sportsters out there that do not have their original Bendix ​carb attached to them. \\ +====== Cleaning ====== 
-Consequently, this page will try to bring to light at least some the differences ​in these carbs. \\ +  * 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. 
-One could say it's a blessing that Bendix carbs for Harleys will interchange. \\ +  * It's good to clean each individual part rather than soak or boil the whole carb in carb cleaner. \\ But either way is good. Do not allow any solvents to contact any rubber parts (tip of needle, O-ring seal for bowl). 
-One could also say it's a curse. \\ +  * Make sure to take everything apart, jets, needle, accel pump, all rubber components especially. 
-Bendix carbs for Sportsters were set up for Sportsters. \\ +  * Examine all parts for excessive wear, damage, distortion, etc. 
-Bendix carbs for other HD models were set up for the needs of those motors. \\ +  * Cleaning solutions/​sprays vary based upon your location, ​needs, budget, preferences and quality. \\ Dismantle ​the carb down to the body before soaking. You will be surprised at all the dirt in the bottom of the soaking container. \\ Here are some helpful ideas: ​ 
-Changing ​the jetting alone (on other intended model carbs) ​to Sportster specs may still not give the results intended. \\ +     * 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. 
-The 27155-72A Sportster carb has another number stamped into the ID pad (13732). \\ +     * 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. 
-This Bendix part number denotes ​a certain configuration carb body and / or internal parts. \\ +     * Soak it in mineral spirits for a few days. ((Monte03 of the XLFORUM https://www.xlforum.net/​forum/​sportster-motorcycle-forum/​sportster-motorcycle-era-specific-and-model-specific/​ironhead-sportster-motorcycle-talk-1957-1985/​47937-cleaning-a-carb?​t=185361)) 
-**Change Letters**: \\ +     * You can use acrylic paint thinners for cleaning up carb parts. It melts the fuel varnish right off. ((russzx6 ​of the XLFORUM https://www.xlforum.net/​forum/​sportster-motorcycle-forum/​sportster-motorcycle-era-specific-and-model-specific/​ironhead-sportster-motorcycle-talk-1957-1985/​47937-cleaning-a-carb?​t=185361)) 
-You may have noticed a letter beside the HD part number or it may be arbitrarily stamped ​in the ID pad away from the HD number. \\ +     * 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.  
-Carbs with changes made during the build phase had the change letter included at the end of the HD stamped part number. \\ +  * Blow out all holes, jets and orifices thoroughly with compressed air after cleaning.
-Carbs with changes made at the dealership ​(customer owned bikes) had the change letter stamped into the existing ID pad...somewhere. \\ +
-This explains ​the arbitrary location of some of the change letters. \\ +
-For example, an "​A"​ stamped into the ID pad away from the HD part# is a Bendix modification letter, not a suffix letter to the HD part#. \\+
  
-**Bendix model 13479**: ​\\+A gallon of carburetor cleaner is very useful in cleaning out varnish from the channels and metering chamber. ​\\ 
 +It is especially useful for soaking stuck gaskets between parts and loosen the joint between them for dis-assembly. \\ 
 +Depending on how old or how '​stuck'​ the parts are, soaking for a couple hours may help to separate the old gasket in between. \\ 
 +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 ((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|}}|
  
-The model 13479 carb was used on FLP, FLH and FX model Harley Davidsons. \\ +**Note**: \\ 
-The letters A, B, C, D, E and F stamped near the basic Bendix part number (13479) are change letters. \\ +The use of wire to '​rod'​ out jets and orifices is discouraged in the FSM. \\ 
-Meaning they denote certain changes made per carb model. \\+However, a hard wire such as a welding tip cleaner, has been known to open up stubborn areas at times. \\ 
 +Always use a wire smaller than the orifice cleaned so you don't widen the holes. \\ 
 +Doing so could create burrs or change the hole sizes. \\
  
-The following changes are noted in Technical Service Bulletin (614A). ((HD TSB 614A dated April 14, 1971)) \\ +**Carb Stand**: \\ 
-  ​* **Change for 13479A**: +  * You can put the carb in a vice to remove ​the screws, ​and for much of the following work. \\ Wrap in a shop towel; close the vice gently taking extra care with the choke and throttle linkages. \\ The vice is a needed extra pair of hands. 
-    * The float setting was changed from 1/​8" ​to 3/16" to remedy a rich condition occurring at steady speeds. +  * It can be very confusing trying ​to decide which way to bend the tang if it is not correct. \\ If the fuel level is low,​Is ​the float high or low?, Do you need to bend the tang up or down? etc. \\ On the bench the carb is usually upside down, adding to the confusion. You should sort all this out before making ​an adjustments.
-    * The clearance between ​the float tang and the wire clip on the needle decreased. \\ It should be .005"​-.010"​ between ​the top of the tang and bottom ​of the portion of spring that hangs over the tang. +
-  * **Change for 13479B**: +
-    * A new choke valve has detents with a spring loaded plunger engaging the detents ​to provide positive positioning throughout ​the choking range. +
-    * New part (27664-71 choke shaft replaces 27664-70. +
-    * New part 27665-71 plunger added. +
-    * 27666-71 plunger spring added. +
-  * **Change for 13479C & 13479D**: ​\\ Changes were made to correct over-rich mixtures in the intermediate (off idle) speed range. +
-    * A new idle jet has two .06mm holes instead of one .08mm hole near the screw end. +
-      * New part (27725-71) idle jet has the letter '​A'​ stamped on the screw end and replaces 27723-71. +
-      * The idle air bleed hole in the carb body was enlarged from 3.35mm ​to 3.60mm (app. 9/64: in diameter). \\ Idle jet (27725-71 must be used with the drilled out passage in this carb for proper carburetion. \\ Dealers could drill the bleed hole and stamp the change letter //if// there was a problem with the field unit's performance. +
-      * The accelerator pump shaft had 2 additional holes to allow for an increase or decrease of quantity of fuel delivery. \\ Factory setting for the pin was the center hole.+
  
-**Bendix model 13609 and 13731** \\ +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. \\ 
-There were three Bendix carburetors, designated in the parts catalogs, that were installed on Sportsters. \\ +{{:​techtalk:​ref:tools:carb_stand_1_by_ironmick.jpg?​direct&​150|}} ((photo by IronMick ​of the XLFORUM ​https://www.xlforum.net/​forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/47937-cleaning-a-carb?t=185361))  
-|Sportster \\ Year \\ Model|HD Part #|Bendix Part #|Venture \\ Size|No. of Idle \\ Discharge \\ Holes|Idle \\ Tube| +{{:​techtalk:​ih:​carb:​bendix-zenith_carb_12_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}} ​
-|**E1972**|27155-72 ((1972,1973 HD Sportster Parts Catalog Supplements (99451-72), (99451-73) ))|13609A|38mm|3|(A) 27749-72| +
-|:::​|27155-72 ((1972,1973 HD Sportster Parts Catalog Supplements (99451-72), (99451-73) ))|13609B|38mm|3|(B) 27750-72| +
-|**L1972-1974**|27155-72A ((1973, 1974 HD Sportster Parts Catalog Supplements (99451-73) (99451-74) ))|13731|38mm|4|:::​|  +
-|**1975-Early 1976** \\ (also '​71-'​75 FX models)| 27155-72B ((1975 HD Sportster Parts Catalog Supplement (99451-75) )) ((1976 HD Sportster Parts Catalog Supplement (99451-76) )) ((1971-1984 HD FX Parts Catalog pg 35))|13731|38mm|4|integrated w / carb body \\ not for replacement| +
- +
-**Bendix model 13732** \\ +
- +
-  * 27152-71A (13732) - 38mm, was reportedly factory installed on a '74 XLH delivered from the dealer in July 1974. ((The Doctor71 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2072203&​page=2)) +
- +
-**Other known Bendix ID information**: ​\\ +
- +
-|HD Part #|Bendix Part #|Venture Size|No. of Idle \\ Discharge \\ Holes| +
-|27152-71 ((needspeed of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2072203&​page=3))| ​ |36mm| +
-|27152-71 ((Popgadget of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2071986))|13479A|36mm|3| +
-|27152-71 ((savagegarden of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1903749))|13479E|36mm|  +
-|27152-71A ((The Doctor71 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2072203&​page=2))|13732|38mm| +
-|27152-72 ((needspeed of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2072203&​page=3))| ​ |38mm| +
-|27155-72B ((curiousgeorge of the XLFORUM))| ​ |36mm| +
-|27155-72B ((DirtyHarry68 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2072203&​page=2))|13731C|38mm| +
- +
-|Zenith \\ 13859A|Also has the word Andpro. \\ __And__rews __Pro__ducts used to sell a Bendix ​carb. No HD markings|| +
- +
-| +
-===== Venture Size ===== +
- The venturi size is cast into the venturi. ((needspeed of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2072203&​page=3)) \\ +
-Looking ​in the carb from the air cleaner end, the numbers are on the venturi at 12:00 o'clock on the radiused entry.  \\ +
-They are small but every bendix should have the number stamped there. \\ +
- +
-{{:​techtalk:​ih:carb:bendix_venture_id_1_by_the_doctor71.jpg?​direct&​200|}} ((photo by The Doctor71 ​of the XLFORUM ​http://xlforum.net/​forums/​showthread.php?​t=2072203&​page=3)) \\ +
- +
-\\ +
- +
-|  27155-72B (13731C), arbitrary '​C'​ ((photos by DirtyHarry68 of the XLFORUM http://xlforum.net/​forums/showthread.php?​t=2072203&​page=2)) ​ || +
-|{{:​techtalk:​ih:​carb:​bendix_carb_7_by_dirtyharry68.jpg?​direct&​300|}}|{{:​techtalk:​ih:​carb:​bendix_carb_9_by_dirtyharry68.jpg?​direct&​300|}}| +
- +
- +
-Both of these carbs are stamped 27152-71. \\ +
-One has a '​36'​ and the other has a '​38'​ stamped inside the venture. \\ +
-|  27152-71A (13732) - venturi stamped '​38'​ ((photos by The Doctor71 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2072203&​page=3)) ((http://​xlforum.net/​forums/​showthread.php?​t=2072203&​page=2)) ​ || +
-|{{:​techtalk:​ih:​carb:​72-74_bendix_idle_tube_location_by_the_doctor71_annotated_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​ih:​carb:​bendix_venture_id_2_by_the_doctor71.jpg?​direct&​300|}}| +
- +
-|  27152-71 (13479A) arbitrary '​A' ​- venturi stamped '​36'​ ((photo by Popgadget of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2071986)) ​ || +
-|{{:​techtalk:​ih:​carb:​bendix_carb_4_by_popgadget.jpg?​direct&​200|}}|{{:​techtalk:​ih:​carb:​bendix_carb_5_by_popgadget.jpg?​direct&​170|}}| +
- +
-|  27152-71 (13479E) arbitrary '​E',​ adjustable jet  ((photos by savagegarden of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1903749)) ​ ||  27152-71 (13479E) arbitrary '​E',​ \\ fixed jet, 36mm ((photo by savagegarden of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1903749)) ​ | +
-|{{:​techtalk:​ih:​carb:​bendix_carb_27152-71e_pic_2_by_savagegarden.jpg?​direct&​200|}}|{{:​techtalk:​ih:​carb:​bendix_carb_27152-71e_pic_1_by_savagegarden.jpg?​direct&​200|}}|{{:​techtalk:​ih:​carb:​bendix_carb_27152-71e_pic_3_by_savagegarden.jpg?​direct&​200|}}| +
- +
-===== 36mm and 38mm Comparison ===== +
- +
-Side by side comparison of 36mm and 38mm Bendix carbs. \\ +
-Aside from the venturi size, the other main difference that might affect the way it runs is the number of secondary idle discharge ports. \\ +
-These are the holes that get uncovered by the throttle plate at part throttle settings. \\ +
-The 38mm has 3 (in addition to the idle adjustment screw hole). \\ +
-The 36 has 2 (in addition to the idle adjustment screw hole). \\ +
-The air cleaner screw bosses on the 36mm are smaller. \\ +
- +
-|  (Left) 38mm, (Right) 36mm ((photo by needspedd of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1993814)) ​ |  36mm doesn'​t have a bowl vent hole here ((photo by needspedd of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1993814)) ​ |  (L) 38mm has a flat corner, ​ (R) 36mm is round ((photo by needspedd of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1993814)) ​ | +
-|{{:​techtalk:​ih:​carb:​bendix_36-38mm_carb_comparison_1_by_needspeed.jpg?​direct&​300|}}|{{:​techtalk:​ih:​carb:​bendix_36-38mm_carb_comparison_2_by_needspeed.jpg?​direct&​300|}}|{{:​techtalk:​ih:​carb:​bendix_36-38mm_carb_comparison_3_by_needspeed.jpg?​direct&​300|}}| +
- +
- +
-===== Idle Passages ===== +
-The 36mm carb has 3 idle passages. ((Popgadget of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2071986&​page=3)) \\ +
-The 38mm carb has 4 idle passages. \\ +
-===== Main Jet / Idle Tube ===== +
-One feature of an adjustable main jet, (besides the number), is the holes near the bottom that are drilled at about a 45° angle. ((needspeed of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2071986&​page=2)) \\ +
-Note that on the adjustable main jet shown below (R), the top of it looks identical to the fixed jet. ((Popgadget of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2071986&​page=2)) \\ +
- +
-{{:​techtalk:​ih:​carb:​bendix_main_jet_comparison_by_needspeed_-_annotated.jpg?​direct&​400|}} ((photo by needspeed of the XLFORUM, annotated by Hippysmack ​ http://​xlforum.net/​forums/​showthread.php?​t=2071986&​page=2)) +
- +
-Some have converted their fixed main jet setup to an adjustable jet. \\ +
- +
-The C66-157 fixed main jet came standard on a 1974 Sportster. \\ +
- +
-|Bendix Carb Main Jet C66-157 - 1.10mm ((photo by The Doctor71 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2073320)) ((Pic courtesy of The Doctor71 of the XLFORUM))|| +
-|{{:​techtalk:​ih:​carb:​bendix_main_jet_c66-157_1.10mm_by_the_doctor71.jpg?​direct&​300|}}|{{:​techtalk:​ih:​carb:​bendix-zenith_carb_9_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}}| +
- +
-The C66-184 adjustable main jet has the tube extending beyond the taper. ((Popgadget of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2071986&​page=2)) \\ +
- +
-|  Bendix C66-184 adjustable main jet ((photo by Popgadget of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2071986)) ​ || +
-|{{:​techtalk:​ih:​carb:​bendix_main_jet_1_c66-184_by_popgadget.jpg?​direct&​200|}}|{{:​techtalk:​ih:​carb:​bendix_main_jet_2_c66-184_by_popgadget.jpg?​direct&​200|}}| +
- +
-==== Idle Tube ==== +
-Alternate references include intermediate / idle / low speed jet. The original idle tubes are designated with either an A, B, or C marked on top. ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=4829064#​post4829064)) \\ +
- +
-Tube sizes: \\ +
-  * A = .60mm ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=4829064#​post4829064)) (27749-72) standard on carbs through change letter "​A"​. +
-  * B = .65mm ((1971-1984 HD FX FSM pg 35)) (27750-72) standard on carbs through change letter "​B"​. +
-  * C =  standard on carbs through change letter "​C"​ plugged tubes. +
- +
-{{:​techtalk:​ih:​carb:​bendix_idle_tubes_by_dr_dick.jpg?​direct&​300|}} ((photo by Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=4829064#​post4829064)) {{:​techtalk:​ih:​carb:​bendix_idle_tube_-a.jpg?​direct&​350|}} \\ +
- +
- +
-\\ +
- +
-===== Throttle Linkage ===== +
-Here’s another, and more significant difference. ((Popgadget of the XLFORUM http://​xlforum.net/​forums/​showthread.php?t=2071986&​page=2)) \\ +
-The cable attachment to the throttle shaft is in a different position which changes the geometry of the cable action. \\ +
-With the 36 mm carb, the cable pulls from over center with the stock outer jacket bracket. \\ +
-As you can see in the left picture, even with a modified bracket, the geometry isn’t great. \\ +
-The picture on the right is the same 36mm carb with the correct throttle shaft and return spring for a 38mm carb added. \\ +
-The throttle return spring is substantially stronger than the original (for the 36mm). \\ +
-It also required an additional spring to properly return. \\ +
-The standard (38mm style) bracket was used to support the outer jacket of the cable. \\ +
- +
-{{:​techtalk:​ih:​carb:​bendix_carb_14_by_popgadget.jpg?​direct&​300|}} ((photo by Popgadget of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2071986&​page=2)) +
- +
-{{:​techtalk:​ih:​carb:​bendix_carb_9_by_popgadget.jpg?​direct&​400|}} ((photo by Popgadget of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2071986&​page=2)) {{:​techtalk:​ih:​carb:​bendix_carb_10_by_popgadget.jpg?​direct&​300|}} ((photo by Popgadget of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2071986&​page=2)) \\ +
- +
-====== Pics of Bendix Carbs ====== +
- +
- +
-===== 27152-71A ===== +
- +
-{{:​techtalk:​ih:​carb:​bendix-zenith_carb_1_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}}  +
-((Pic courtesy of The Doctor71 of the XLFORUM)) {{:​techtalk:​ih:​carb:​bendix-zenith_carb_2_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}}  +
-((Pic courtesy of The Doctor71 of the XLFORUM)) ​{{:​techtalk:​ih:​carb:​bendix-zenith_carb_3_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}} ​+
 ((Pic courtesy of The Doctor71 of the XLFORUM)) \\ ((Pic courtesy of The Doctor71 of the XLFORUM)) \\
  
-{{:​techtalk:​ih:​carb:​bendix-zenith_carb_4_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}}  +====== ​Welch Plug or Expansion Plug ======
-((Pic courtesy of The Doctor71 of the XLFORUM)) {{:​techtalk:​ih:​carb:​bendix-zenith_carb_5_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}}  +
-((Pic courtesy of The Doctor71 of the XLFORUM)) {{:​techtalk:​ih:​carb:​bendix-zenith_carb_6_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}}  +
-((Pic courtesy of The Doctor71 of the XLFORUM)) \\ +
- +
-{{:​techtalk:​ih:​carb:​bendix-zenith_carb_7_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}}  +
-((Pic courtesy of The Doctor71 of the XLFORUM)) {{:​techtalk:​ih:​carb:​bendix-zenith_carb_8_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}}  +
-((Pic courtesy of The Doctor71 of the XLFORUM)) {{:​techtalk:​ih:​carb:​bendix-zenith_carb_9_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}}  +
-((Pic courtesy of The Doctor71 of the XLFORUM)) \\ +
- +
-{{:​techtalk:​ih:​carb:​bendix-zenith_carb_10_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}}  +
-((Pic courtesy of The Doctor71 of the XLFORUM)) {{:​techtalk:​ih:​carb:​bendix-zenith_carb_11_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}}  +
-((Pic courtesy of The Doctor71 of the XLFORUM)) {{:​techtalk:​ih:​carb:​bendix-zenith_carb_12_by_the_doctor71_of_the_xlforum.jpg?​direct&​200|}}  +
-((Pic courtesy of The Doctor71 of the XLFORUM)) \\ +
- +
-===== 27155-72B ​===== +
- +
-| 27155-72B (13731) fixed jet (hidden under welch plug). Also has stampings '​C'​ and '5 95' ((photos by DirtyHarry68 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2072203&​page=2))|| +
-|{{:​techtalk:​ih:​carb:​bendix_carb_7_by_dirtyharry68.jpg?​direct&​300|}}|{{:​techtalk:​ih:​carb:​bendix_carb_9_by_dirtyharry68.jpg?​direct&​300|}}| +
- +
-|{{:​techtalk:​ih:​carb:​bendix_carb_2_by_dirtyharry68.jpg?​direct&​200|}}|{{:​techtalk:​ih:​carb:​bendix_carb_3_by_dirtyharry68.jpg?​direct&​200|}}|{{:​techtalk:​ih:​carb:​bendix_carb_5_by_dirtyharry68.jpg?​direct&​200|}}| +
- +
-====== Zenith Replacement Carbs ====== +
-===== 0-13731 ===== +
-  * Standard Finish ((http://​www.zenithfuelsystems.com/​documents/​HARLEYDAVIDSONCARBURETORS2009.pdf)) +
-  * 38mm venturi +
-  * Fixed main jet +
-  * Fits all H-D® Sportster 1974 through 1980 engines +
-  * OEM for (27155-72B) +
- +
-===== 0-13859 ===== +
-  * Standard Finish –38mm -venturi ((http://​www.zenithfuelsystems.com/​documents/​HARLEYDAVIDSONCARBURETORS2009.pdf)) +
-  * Adjustable main jet +
-  * Fits all H-D® Sportster 1974 thru 1980 engines +
- +
- +
-{{:​techtalk:​ih:​carb:​bendix_by_icedpee.jpg?​direct&​250|}} ((photo by IcedPee of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1474268)) \\ +
- +
-===== 0-14130 ===== +
-  * Standard Finish ((http://​www.zenithfuelsystems.com/​documents/​HARLEYDAVIDSONCARBURETORS2009.pdf)) +
-  * 40mm venturi +
-  * Dual throttle cable +
-  * All year H-D® models with use of proper manifold. +
-  * Designed for Evolution® motors +
- +
-===== 015110 and 015112 ===== +
-  * 015110 – Standard finish ((http://​www.zenithfuelsystems.com/​documents/​HARLEYDAVIDSONCARBURETORS2009.pdf)) +
-  * 015112 –Chrome finish +
-  * 40mm venture +
-  * Adjustable main jet +
-  * Dual throttle linkage-spigot mount +
-  * Fits 1984 Evolution Engines & H-D Twin Cam models 1999 and later.+
  
-====== Bendix ​/ Zenith Manuals ​and Other Helpful Links ======+  * Inspection:  
 +    * A close inspection around the walls of a welch plug can reveal possible leaks. 
 +  * Removal: ((HD Service Bulletin #518 dated September 10, 1965 pg OC-189)) 
 +    * 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 https://​www.xlforum.net/​forum/​sportster-motorcycle-forum/​sportster-motorcycle-era-specific-and-model-specific/​ironhead-sportster-motorcycle-talk-1957-1985/​108002-zenith-bendix-carb-rebuild-kits/​page3?​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.  
 +    * Installation Recommendations from Hubbard Spring [[http://​www.hubbardspring.com/​install_reco.php?​cid=45]] 
 +  * Some Welch Plug dims: [[http://​www.hubbardspring.com/​index.php/​category/​43/​cupped-plugs-and-cupped-plugs-pierced-catalog]]
  
-  * [[http://​www.zenithfuelsystems.com/​|Zenith Fuel Systems.com]] +====== Links,Parts and Services ​for Linkert ​Carbs ======
-  * [[http://​www.zenithfuelsystems.com/​documents/​HARLEYDAVIDSONCARBURETORS2009.pdf|2009 Zenith Fuel Systems LLC PDF for Harley ​Carbs]] +
  
 +|Carb Assembly is HD Part Number: 27155-57B((1959-1969 HD Sportster FSM))||||
 +^Model \\ (marked on carb)|Idle Port Hole \\ Drill Sizes^Model \\ (marked on carb)|High Speed Hole \\ Drill Sizes|
 +|DC-1, 1L, 1M, 10 \\ DC-2|#70 (0.028 in) \\ #56 (0.0465 in)|DC-1, 1L, 1M, 10, 6, 7, 12 \\ DC-2|#55 (0.052 in) \\ #70 (0.028 in)|
  
 +===== Links to Carb Diagrams and Parts =====
 + 
 +  * [[http://​www.linkertcarbs.com/​| Linkert Carbs.com]]
 +  * [[http://​linkertcarbs.com/​linkertgaskets.html|Into The Wilderness Trading]]
 +  * [[https://​www.demonscycle.com/​manuals_diagrams|Demons Cycle website of useful manuals]]
  
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