I need to keep better track, but I think my fuel is mysteriously disappearing. It seems to me that no matter how many bars the fuel gauge shows when I park it, it often shows one less the following day.
Does anyone else experience this?
I want to think that maybe when I'm riding the fuel is sloshing around enough that the gauge reads artificially high, and after it sits and settles down, it's the 'accurate' reading. However, (besides that being far-fetched), there are two other potentially related things I've noticed:
1. I can see "fumes" coming out of the vent tube (lower right side, below engine, close to the ground). It's not that fumes are visible, but there's that optical distortion you see over a heat source. Hopefully that makes sense. This is with the bike "warm," but off and parked.
2. While doing some maintenance, I had my tank off for a few days and noticed that there was a "wet spot" of gas below the disconnected fuel line - as if fuel was leaking out very slowly, which I thought was impossible because it's ejected by the fuel pump, not gravity. The tank was close to full (when else would I decide to pull the tank?) when I noticed this. I moved it around a few times over the course of a few days and the puddle followed the tank, so I think it was more than the few drops in the line.
Maybe these two observations are tricking me into thinking I'm losing fuel when I'm really not, or maybe they are both at work robbing me of gas... thru evaporation thru the vent hose and a very slow leak from the line itself.
This is an '05 Vee with 17k mi and the original fuel line (I note the OM advises changing the fuel line every 4 years. Not sure why, but I'm at the 4 year mark now and it's the original hose).
Any thoughts on any of this are highly welcomed.