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Vacuum Line From Carb

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Old Mar 24, 2013 | 04:46 PM
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Default Vacuum Line From Carb
I have a 2003 FXDX and I want to replace the petcock with a gravity one instead of the factory vacuum. My question is if I go to a Pingle that is gravity fed what do I do with the vacuum line coming off the carb?
 
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Old Mar 24, 2013 | 05:28 PM
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Originally Posted by DoomedFailure
"I have a 2003 FXDX and I want to replace the petcock with a gravity one instead of the factory vacuum. My question is if I go to a Pingle that is gravity fed what do I do with the vacuum line coming off the carb?"
Remove vacuum hose and put a rubber cap on the carb nipple so that it doesn't suck in air. If you still have a VOES switch make sure that hose stays connected.
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Old Mar 24, 2013 | 07:27 PM
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Originally Posted by O-Town D
Remove vacuum hose and put a rubber cap on the carb nipple so that it doesn't suck in air. If you still have a VOES switch make sure that hose stays connected.
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Exactly what I had to do to when I replaced my petcock with a gravity feed.
 
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Old Mar 25, 2013 | 08:43 AM
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Originally Posted by O-Town D
Remove vacuum hose and put a rubber cap on the carb nipple so that it doesn't suck in air. If you still have a VOES switch make sure that hose stays connected.
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OK hopefully not a dumb question but I googled VOES kind of understand but the vacuum line from it leads to what exactly?
 
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Old Mar 25, 2013 | 09:57 AM
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Originally Posted by DoomedFailure
"OK hopefully not a dumb question but I googled VOES kind of understand but the vacuum line from it leads to what exactly?"
In simple terms, the HD VOES is an electrical switch that is triggered by manifold vacuum (hence the hose); depending on manifold pressure, the VOES sends a signal to "advance" or "retard" the timing in the ignition control module so that the motor runs efficiently. I had one on my old FXR and only needed to replace it once in the 20 years I had the bike. Not sure when the MoCo stopped installing them, so your 2003 bike may or may not have one. Hope that helps.
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Last edited by O-Town D; Mar 25, 2013 at 10:04 AM. Reason: more info
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Old Mar 25, 2013 | 01:18 PM
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Originally Posted by O-Town D
In simple terms, the HD VOES is an electrical switch that is triggered by manifold vacuum (hence the hose); depending on manifold pressure, the VOES sends a signal to "advance" or "retard" the timing in the ignition control module so that the motor runs efficiently. I had one on my old FXR and only needed to replace it once in the 20 years I had the bike. Not sure when the MoCo stopped installing them, so your 2003 bike may or may not have one. Hope that helps.
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I was trying to find on google I do not think mine has a VOES
 
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Old Mar 25, 2013 | 02:25 PM
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Superglue one of these in the pipe you pull off the petcock...

 
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Old Mar 25, 2013 | 08:01 PM
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Originally Posted by Foxster
Superglue one of these in the pipe you pull off the petcock...

OK I think I am gonna use a wood screw.
 
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Old Mar 25, 2013 | 09:55 PM
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Why not just use a $20 fuel valve instead of a $100 Pingel?
 
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Old Mar 26, 2013 | 02:16 AM
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Originally Posted by DoomedFailure
OK I think I am gonna use a wood screw.
Fine but a plug out the end of a Bic Cristal pen is an exact fit that will be air-tight.
 
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