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techtalk:ih:carb01p [2019/10/14 15:50]
hippysmack [(B50A)]
techtalk:ih:carb01p [2020/05/10 18:44]
hippysmack
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   * [[techtalk:​ih:​carb01r|Keihin Butterfly Carb Function and Tuning]]   * [[techtalk:​ih:​carb01r|Keihin Butterfly Carb Function and Tuning]]
 \\ \\
 +
 +|**Keihin** butterfly (non-CV)(Late 1976-1987)||  ​
 +|27153-76 ((HD Sportster Parts Catalog XLH/XLCH 99451-78B))|Late 1976 XLH, XLCH|
 +|27153-77 ((HD Sportster Parts Catalog XLH/XLCH 99451-78B))|1977-1978 XLH, XLCH|
 +|27469-78A \\ B83A ((1979 Harley Davidson Sportster Parts Catalog))|1979 XL, XLCH, XLS| 
 +|27469-80A \\ B83D ((1979-1985 HD XL Parts Catalog pg 23))|1980 XL, XLS|
 +|27469-81A \\ B83F ((1979-1985 HD XL Parts Catalog pg 25))|1981-Early 1982 XL, XLS|
 +|27469-82 \\ B83G ((1979-1985 HD XL Parts Catalog pg 25))|Late 1982 XL, XLS|
 +|27469-83C \\ B83K ((1979-1985 HD XL Parts Catalog pg 27))|1983-1985 XL, XLS, XLX|
 +|27148-77 \\ B75A ((1977 HD XLCR Parts Catalog pg 57))|1977-1978 XLCR 1000|
 +
  
 76-78 Keihin carbs do not have an HD number on it or a stamp pad for numbering. The Keihin number is stamped in the flange. \\ 76-78 Keihin carbs do not have an HD number on it or a stamp pad for numbering. The Keihin number is stamped in the flange. \\
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 See the pics below for a visual confirmation of year model features. \\ See the pics below for a visual confirmation of year model features. \\
  
-{{:​techtalk:​ih:​carb:​keihin_butterfly_carb_id_3.jpg?​direct&​300|}} \\+{{:​techtalk:​ih:​carb:​keihin_butterfly_carb_id_3.jpg?​direct&​300|}} {{:​techtalk:​ih:​carb:​keihin_butterfly_27155-76_860d_.jpg?​direct&​300|}} \\
  
 {{:​techtalk:​ih:​carb:​keihin_butterfly_carb_id_2.jpg?​direct&​300|}} ​ {{:​techtalk:​ih:​carb:​keihin_butterfly_carb_id_1.jpg?​direct&​300|}} ​ \\ {{:​techtalk:​ih:​carb:​keihin_butterfly_carb_id_2.jpg?​direct&​300|}} ​ {{:​techtalk:​ih:​carb:​keihin_butterfly_carb_id_1.jpg?​direct&​300|}} ​ \\
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 ===== (B50A) ===== ===== (B50A) =====
 L1976 27153-76 Sportster '76 only' Keihin butterfly carb. \\ L1976 27153-76 Sportster '76 only' Keihin butterfly carb. \\
-Float bowl (27395-76). \\+Float bowl (27359-76). \\
 Accelerator pump (27364-76), inside casting# (1-2). \\ Accelerator pump (27364-76), inside casting# (1-2). \\
 It has a solid choke, meaning that the choke plate (butterfly) has no spring action in the linkage. ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1035453)) \\ It has a solid choke, meaning that the choke plate (butterfly) has no spring action in the linkage. ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1035453)) \\
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 Air Fuel Screw is on top, not buried under a cap. \\ Accelerator pump has check ball, not the rod. \\ Air Fuel Screw is on top, not buried under a cap. \\ Accelerator pump has check ball, not the rod. \\
 Low speed jet is covered with rubber plug and there is a hole between the low speed and main well. \\ Low speed jet is covered with rubber plug and there is a hole between the low speed and main well. \\
 +Float bowl: ((1970-1978 HD Electra Glide and Super Glide Parts Catalog pg 17)) \\ 
 +76-E77 (27359-76). \\ 
 +L77-78 (27359-76A). \\ 
 +Accelerator pump 76-78 (27364-76). ((1970-1978 HD Electra Glide and Super Glide Parts Catalog pg 17)) \\
  
 ===== (B28K) ===== ===== (B28K) =====
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 ===== 27029-86 ===== ===== 27029-86 =====
 +1988 FLT or FXR. 38mm venture. ((NH86XL883 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1258235)) \\
 {{:​techtalk:​evo:​carb:​idle_mixture_screw_1_by_sifty.jpg?​direct&​300|}} ((photo by sifty of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1592463&​page=48)) ​ \\ {{:​techtalk:​evo:​carb:​idle_mixture_screw_1_by_sifty.jpg?​direct&​300|}} ((photo by sifty of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1592463&​page=48)) ​ \\
  
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 {{:​techtalk:​ih:​carb:​keihin_butterfly_carb_3_by_mrironhead.jpg?​direct&​300|}} ((MrIronHead of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2072120)) {{:​techtalk:​ih:​carb:​keihin_butterfly_carb_4_by_mrironhead.jpg?​direct&​300|}} ((MrIronHead of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2072120)) \\ {{:​techtalk:​ih:​carb:​keihin_butterfly_carb_3_by_mrironhead.jpg?​direct&​300|}} ((MrIronHead of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2072120)) {{:​techtalk:​ih:​carb:​keihin_butterfly_carb_4_by_mrironhead.jpg?​direct&​300|}} ((MrIronHead of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2072120)) \\
 +
 +====== Parts List ======
 +
 +|L1976 Keihin (butterfly) Carb|||
 +|27006-76|CARBURETOR REPAIR KIT|L1976|
 +|27153-76|CARBURETOR|L1976|
 +|27304-76|SCREW,​ choke cable bracket|L1976|
 +|27305-76|BRACKET,​ choke cable|L1976|
 +|27306-76|ADJUSTING SCREW, pump stroke|L1976|
 +|27307-76|SCREW,​ wire block|L1976|
 +|27308-76|PIN,​ float|L1976|
 +|27309-76|SCREW,​ float pin|L1976|
 +|27310-76|ROD,​ accelerator pump|L1976|
 +|27311-76|RUBBER CAP, accelerator pump|L1976|
 +|27312-76|0-RING|L1976|
 +|27313-76|SCREW,​ throttle stop|L1976|
 +|27314-76|SPRING,​ throttle stop screw|L1976|
 +|27315-76|ADJUSTING SCREW, low speed mixture|L1976|
 +|27319-76|SPRING,​ low speed mixture adjusting screw|L1976|
 +|27320-76|SCREW,​ throttle cable bracket|L1976|
 +|27321-76|BRACKET,​ throttle cable|L1976|
 +|27322-76|SPRING,​ throttle lever|L1976|
 +|27328-76|THROTTLE LEVER|L1976|
 +|27333-76|SPRING WASHER, throttle lever|L1976|
 +|27335-76|NUT,​ throttle lever|L1976|
 +|27336-76|0-RING|L1976|
 +|27337-76|FLOAT VALVE, with clip|L1976|
 +|27338-76|CLIP,​ float valve|L1976|
 +|27339-76|FLOAT|L1976|
 +|27340-76|MAIN NOZZLE|L1976|
 +|27348-76|LOW SPEED JET|L1976|
 +|27358-76|0-RING,​ bowl|L1976|
 +|27360-76|0-RING (2)|L1976|
 +|27361-76|DIAPHRAGM,​ accelerator pump|L1976|
 +|27362-76|SPRING,​ diaphragm|L1976|
 +|27364-76|ACCELERATOR PUMP HOUSING|L1976|
 +|27366-76|SCREW (5)|L1976|
 +|27367-76|SCREW|L1976|
 +|27368-76|CLIP,​ overflow hose|L1976|
 +|27369-76|HOSE,​ overflow|L1976|
 +|27395-76|BOWL|L1976|
 +|27397-76|MAIN JET, 1.55 mm. (1001-104-155)|L1976|
 +|27398-76|MAIN JET, 1.50 mm. (1001-104-150)|L1976|
 +|27399-76|MAIN JET, 1.45 mm. (1001-104-145)|L1976|
 +|27400-76|MAIN JET, 1.35 mm. (1001-104-135)|L1976|
 +|27401-76|MAIN JET, 1.30 mm. (1001-104-130)|L1976|
 +|27594-76|INLET FITTING|L1976|
 +|27615-76|MAIN JET, 1.40 mm. (1001-104-140)|L1976|
  
 ====== Helpful Links ====== ====== Helpful Links ======
 **Video**: \\ **Video**: \\
-Here are some excellent videos of servicing the pre-CV Keihin Butterfly carbs:​((Used by permission - SportsterPavel ​at the XLForum - http://​xlforum.net/​forums/​showthread.php?​t=2055701))+Here are some excellent videos of servicing the pre-CV Keihin Butterfly carbs: ((Used by permission - SportsterPaul ​at the XLForum - http://​xlforum.net/​forums/​showthread.php?​t=2055701))
  
   * [[https://​youtu.be/​f_Ek37GEEN4|#​1 - Tips and tricks.]]\\   * [[https://​youtu.be/​f_Ek37GEEN4|#​1 - Tips and tricks.]]\\