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Posted by Pete
 - September 25, 2018, 04:13:59 AM

Try riding with the petcock in the "Prime" position, that might help you figure out if it is a petcock problem (make sure that you have a full tank first!).

Aslo, do a visual inspect on the vacuum tube to the petcock in case it's a bit loose at either end.

Posted by Tfrank59
 - September 24, 2018, 23:31:26 PM

It certainly sounds like a fuel delivery problem, and I'm sure you're aware that the Vulcan 800 has a vacuum petcock not strictly gravity. But can you safely rule out say an ignition issue?  -- are you absolutely certain it's fuel starvation that's causing the bike to cut out?

Posted by azdrifter
 - September 24, 2018, 20:24:49 PM

I've been experiencing fuel starvation, bogging out, and stalling out over 60mph. Pull over it fires right back up and cruising along then over 60 same thing.
Have flushed gas from tank, removed the fuel petcock valve looks clean, no debris in tank or around petcock, perfectly clean inside petcock.
2006 31k miles, any ideas??

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