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techtalk:evo:carb01a [2019/10/15 19:29]
hippysmack [Vacuum Slide / Diaphragm]
techtalk:evo:carb01a [2020/05/10 03:54]
hippysmack [Float]
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 ==== Float ==== ==== Float ====
 +
 +As a 1994 model year running change, HD changed the configuration of the float pin pedestal. ((HD TSB #M-1035 dated 10-8-1993)) \\
 +One of the pedestals now has an interference fit to hold the float pin more securely in place. \\
 +A cast-in arrow points at the pedestal that has the interference fit and consequently the direction of pin removal. \\ 
 +The rounded pedestal has the interference fit. The pin is still a uniform width throughout its entire length, so
 +it can be installed starting from either end. \\
 +It should be tapped out from the rounded top pedestal toward the square top pedestal with a small punch or even better, a spring loaded center punch. \\
 +Install the pin in the same fashion just in reverse (from the loose side toward the rounded pedestal). \\
  
 {{:​techtalk:​evo:​carb:​removing_keihin_cv_float_bowl_1_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack)) {{:​techtalk:​evo:​carb:​removing_keihin_cv_float_bowl_6_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack)) {{:​techtalk:​evo:​carb:​removing_keihin_cv_float_bowl_2_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack)) \\ {{:​techtalk:​evo:​carb:​removing_keihin_cv_float_bowl_1_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack)) {{:​techtalk:​evo:​carb:​removing_keihin_cv_float_bowl_6_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack)) {{:​techtalk:​evo:​carb:​removing_keihin_cv_float_bowl_2_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack)) \\
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 |  Hole size comparison ((photo by Matt Black of the XLFORUM, annotated by Hippysmack http://​xlforum.net/​forums/​showthread.php?​t=2068828&​page=6)) ​ |  Torn rubber. ((photo by intoanother of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5686664)) ​ | |  Hole size comparison ((photo by Matt Black of the XLFORUM, annotated by Hippysmack http://​xlforum.net/​forums/​showthread.php?​t=2068828&​page=6)) ​ |  Torn rubber. ((photo by intoanother of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5686664)) ​ |
 |{{:​techtalk:​evo:​carb:​keihin_cv_vacuum_slide_comparison_by_matt_black_annotated.jpg?​direct&​300|}}|{{:​techtalk:​evo:​carb:​cv_vacuum_piston_by_intoanother.jpg?​direct&​300|}}| |{{:​techtalk:​evo:​carb:​keihin_cv_vacuum_slide_comparison_by_matt_black_annotated.jpg?​direct&​300|}}|{{:​techtalk:​evo:​carb:​cv_vacuum_piston_by_intoanother.jpg?​direct&​300|}}|
 +\\
 +**Installing the slide diaphragm**:​ ((HD Tech Tip #12 dated February 1988)) \\
 +The diaphragm has the appearance of being swollen and seems too large to fit into it's groove. That's not really accurate. \\
 +The repeated up and down movement of the diaphragm causes it to stretch and makes reassembly tricky. \\
 +Try using the black plastic top of the carb to position the diaphragm. \\
 +It will not only allow you to evenly push the diaphragm into the groove, but you can wiggle the top and "​feel"​ that the diaphragm is in it's proper location. \\
  
  
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 You can also use a spray bottle of water or run spit around the seal and carb throat to install the carb to seal. \\  You can also use a spray bottle of water or run spit around the seal and carb throat to install the carb to seal. \\ 
 The seal must be replaced periodically. \\ The seal must be replaced periodically. \\
 +
 +When the diaphragm is correct you can cycle the slide with a finger and when you release it you get a Darth Vader breathing kind of sound and the slide doesn'​t slam shut. ((rocketmangb of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2068828&​page=6)) \\