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vacuum cap missing?

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Old Aug 9, 2016 | 06:40 AM
  #21  
Twanger56's Avatar
Twanger56
Stage I
Joined: Aug 2016
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From: Topsfield Massachusetts
Default Vacuum cap issue here too 103"

Thought I got bad gas, turned out to be that missing vacuum port cap below tank. Repaired twice, and failed again yesterday. Seems to only happen on bad starts, when gush of air blows cap off. Idle rpm's waver, pops on decel etc. Anyone know the name of the factory part to do a correct repair?
 
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Old Aug 9, 2016 | 06:54 AM
  #22  
dwl25's Avatar
dwl25
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From: Northwest, Arkansas
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Part # 90383-98 cap, purge tube. I believe.

Here is a parts fiche diagram link.

http://partsfinder.onlinemicrofiche....b=8&c=0&d=2014 FLHR ROAD KING [FB] THROTTLE BODY - INDUCTION MODULE


I hope this helps.
 
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Old Aug 9, 2016 | 12:37 PM
  #23  
ke5rbd's Avatar
ke5rbd
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Joined: Apr 2010
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From: Monroe, Louisiana
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Originally Posted by Twanger56
Thought I got bad gas, turned out to be that missing vacuum port cap below tank. Repaired twice, and failed again yesterday. Seems to only happen on bad starts, when gush of air blows cap off. Idle rpm's waver, pops on decel etc. Anyone know the name of the factory part to do a correct repair?
I have heard of folks wrapping a ziptie around the base of the plug below the knot that holds it on.
 
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