Thank you both for the replies. You guys NAILED that explanation in a way that even a cretan like me can understand! Haha.
Since I am on a roll here - how does the reserve work on Vulcan? I had a Suzuki GZ250, and it had a little "pipe" in the tank that the gas flowed through when the petcock was in the "On" position. When the fuel level dropped below the top of the tube in the tank, you had to turn the petcock to "Reserve" which would switch from drawing the fuel from the tube to another 'port' on the bottom of the tank. At least that's how it was explained to me.
Is that basically the same setup that is on the VN750? And if that's the case, is that pretty much the setup for most bikes -at least the older ones?
Again - thank you all SO much for explaining this stuff. I am an IT guy, it is probably akin to me trying to explain to someone who is computer illiterate how to clear their browsing history! Lol.
7800 orig mi when purchased Jan 2011
Turned 11,000 mi Nov 2011
Taillight relocation kit
Chad's highway peg mounts
Otherwise, all stock
"But it's a dry heat - like the inside of an oven"