Turning the petcock to the off position when you finish riding for the day. A god habit to get into.
Please tell me the advantages of doing this. Until I've live a 1000 years and lived a 1000 life times. I will always be a newbie. Your never to old to learn new tips.
wow ... thread resurrection ... I can't tell if your being facetious. Not really a God habit ... right?
Historically, the advantage has been to keep fuel from running out of containment while parked due to a rare but unanticipated mechanical failure of the carburators float needle valves or fuel contamination preventing a good seal of the same.
There's no reason to turn the fuel tap off on the Vulcan , it has a vacuum operated valve that keeps gas from flowing go the carb when the bike is not running. If your carb is flooding overnight, the valve in the petcock is bad.
Turning it off each night is just fixing the symptom and not the cause.
Older bikes, and riders
did not have vacuum valves in their petcocks, so it was common practise to turn the tap off when you parked the bike....(as a tiny bit of crap could hold the valve needle in the carb open and flood the carb)
I always left my vulcans petcock in the ON position, never had a problem and never got embarrassed by forgetting to turn the fuel on when riding off.
I agree that the probability of a fuel spill related failure mode is decreased with the vacuum valve, but is is still not 100% reliable. Congratulations on not having any issues with it personally. This thread is case in point that some folks do (or might). Using the cutoff may not make it 100% either, but it significantly reduces the odds of spillage. If there is a problem, I would still rather not discover it by finding a fuel puddle under my bike, or in my crankcase or jugs.
x2 Most if not all modern bikes don't have petcocks to turn off now anyway
yea ... most new bikes are fuel injected. Not the VN750.
In the end, I still think getting in the habit of turning the petcock to the off position is a good idea for the aging carburated VN750. Evidently the designers didn't completely trust the vacuum valve either, and it really isn't all that much trouble, is it?
But hey, that's just how I roll, and what I advise. Assess the risks for yourself, and do your own thing.
P.S. - sorry for the slow reply ... lol