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It's just not a good idea to rely on an automatic shutoff on a motorcycle. You're only putting in like 3 or 4 gallons, is it that hard to do yourself? And many fuel nozzles do spit back some gas when they shut off. Not that big a deal when the nozzle is in your car or truck, but any splash back on a bike will definitely spill on the nicely painted tank, or your crotch if you're sitting right there. Did the guy really need the two minutes he thought he was saving by not manually fueling up?
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Wholly crap ! What an eye opener !
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I'm a get off the bike, put it on the center stand, kind of guy. I also pull back the accordion rubber thing with one hand and control the flow of gas with the other.
Anyone else notice that just when you think the tank is full, the gas settles down into unknown recesses and an effort to get the fuel to the bottom of the filler neck is a long, drawn out process?
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I have noticed that too!
I wasn't sure if they extended the filler neck down into the tank to help prevent you from over filling it or if they needed to maintain an air pocket in the tank for some reason? I let it settle a couple of times, but then stop.
(03-05-2015, 02:30 AM)metallyguitarded_imp Wrote: I'm a get off the bike, put it on the center stand, kind of guy. I also pull back the accordion rubber thing with one hand and control the flow of gas with the other.
Anyone else notice that just when you think the tank is full, the gas settles down into unknown recesses and an effort to get the fuel to the bottom of the filler neck is a long, drawn out process?
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If you ever take the tank off, remove the fuel pump and look in, there are no hidden spaces. That fuel settling thing is weird huh?
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I've always assumed that the "settling" was due to the air that is mixed with the gasoline in the filling process. Almost like a carbonated drink settles after being poured into a glass. But H*ll, what to I know?
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(03-05-2015, 09:26 AM)EmptySea_imp Wrote: I've always assumed that the "settling" was due to the air that is mixed with the gasoline in the filling process. Almost like a carbonated drink settles after being poured into a glass. But H*ll, what to I know?
Certainly possible. I'm sure there's some simple explanation. It's just that none of my other bikes have ever done it to this extent. When the gas is at the bottom of the filler neck on my VFR, that's where it stays. It might take one or two more quick squeezes of the handle but that's it. My other bikes have been the same. Not a problem with the CB. Just an interesting observation.
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(03-05-2015, 10:28 AM)metallyguitarded_imp Wrote: (03-05-2015, 09:26 AM)EmptySea_imp Wrote: I've always assumed that the "settling" was due to the air that is mixed with the gasoline in the filling process. Almost like a carbonated drink settles after being poured into a glass. But H*ll, what to I know?
Certainly possible. I'm sure there's some simple explanation. It's just that none of my other bikes have ever done it to this extent. When the gas is at the bottom of the filler neck on my VFR, that's where it stays. It might take one or two more quick squeezes of the handle but that's it. My other bikes have been the same. Not a problem with the CB. Just an interesting observation.
Interesting. Both my CB750 and the CB11 exhibit this descending fuel thing. Both have similar filler necks.
It used to drive me nuts until I figured out that all the little squirts of fuel that I added to top it off after the initial settling added up to less than 1/10th of a gallon.
I've always thought it was what ES pointed out. Air escaping as the fuel settles in the tank.
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I actually just recently started fueling on the bike. Started when I bought my supermoto which was so light, it was easy to balance and concentrate on not over filling the tank.
I started doing it on the CB since I rarely run a tank bag. Also, it's harder to put on the center stand with the grab handle blocked by my saddlebag.
The V-strom is top heavy(er), always has a tank bag, and is easy as pie to center stand, so I haven't started that bad habit on it.
I am usually filling up after I leave the house or right before I am getting back, so I am not as concerned with getting off to stretch. It is food for thought, though.
