Tank Bar?

[Mr.E]

This might save me tearing it all apart just for the sake of curiosity!

Anyone know the reason for this Bar thing set just below the filler neck?

 

[Fawlty]

This might save me tearing it all apart just for the sake of curiosity!

Anyone know the reason for this Bar thing set just below the filler neck?

Could be something to do with stopping the wrong size fuel nozzle fitting into the tank when refilling with petrol.

 

[Mellow]

Since it's lined up the the bottom of the fuel filler neck, I'm assuming it's an easier way to visually see the maximum level you can fill the upper tank to.

 

[SMSW]

How do you propose to tear it apart in a way that you can replace it? Or do you have a damaged tank you can cut apart?

 

[Igofar]

It’s the fuel level indicator.
On another note, do NOT fill your tank up from the right side, and jam the fuel nozzle in underneath this bar and let go! It will bend the bar upwards like a small triangle, which will catch and grab the lock of the cap and FOREVER seal your tank.

 

[STRider]

I thought it was a tube and part of the drainage mechanism of that area seen surrounding the tank opening in @Mr.E 's picture. Maybe not?

 

[Obo]

On another note, do NOT fill your tank up from the right side, and jam the fuel nozzle in underneath this bar and let go! It will bend the bar upwards like a small triangle, which will catch and grab the lock of the cap and FOREVER seal your tank.

Have a step bit, drill and a cork? No problem

 

[Andrew Shadow]

I thought it was a tube and part of the drainage mechanism of that area seen surrounding the tank opening in @Mr.E 's picture. Maybe not?

The hole that you see at the 1 O'Clock position in the photo is the drain for the area around the filler neck. It is a metal tube that goes through the fuel tank and exits at the bottom where it connects to a rubber hose that leads down to below the crankcase.

The horizontal metal bar is simply the fuel tank fill level indicator.

 

[etalors]

It’s the fuel level indicator.
On another note, do NOT fill your tank up from the right side, and jam the fuel nozzle in underneath this bar and let go! It will bend the bar upwards like a small triangle, which will catch and grab the lock of the cap and FOREVER seal your tank.

Just curious to know. What will happen if the fuel is filled above this bar all the way to the lower end of the filler neck?

 

[Andrew Shadow]

Some claim that there is a risk of liquid fuel being forced in to the hose that leads to the charcoal fuel evaporative canister which can then makes it way to the canister. Getting liquid fuel in to the canister is not supposed to be good for it and might damage it.

With a 29 litre (7.7 US gallons) fuel tank, I never really saw the need to cram in those last few ounces of fuel and worry about whether or not thare are any negative effects.
Fill to the bar and go ride.

 

[etalors]

Not to belabor the point. I don't believe anyone has actually filled more than 7.4 US gallons after they ran out of fuel including YT (7.3). The tank capacity is 7.7 US gallons but useable fuel is around 7.3 US gallons.

 

[Larry Fine]

If I'm heading out, I'll top up as much as I can fit with wiggling, but stop sooner if I'll be parking shortly.

I've thought about carrying gas and running my ST dry, just to see how far I can really go on one tankful.

 

[Obo]

I've thought about carrying gas and running my ST dry, just to see how far I can really go on one tankful.

Hard on the pump, especially since it's liquid (gas) cooled, but I'd like to know too. Guess the variable is how much you twist the wrist as to the mileage you get.

 

[etalors]

If I'm heading out, I'll top up as much as I can fit with wiggling, but stop sooner if I'll be parking shortly.

I do the same. I have gone about 332 on the ST1300 on a full tank (Meaning gas was filled above the bar mentioned in this thread). But does anyone else think that if the gas is filled above the bar, up to the filler neck, it will go into the fuel cannister. See post #10

 

[Mr.E]

How do you propose to tear it apart in a way that you can replace it? Or do you have a damaged tank you can cut apart?

Unsure if it all comes apart when you undo the ring of Allen bolts around the filler cap.... tank isn't damaged.

It’s the fuel level indicator.
On another note, do NOT fill your tank up from the right side, and jam the fuel nozzle in underneath this bar and let go! It will bend the bar upwards like a small triangle, which will catch and grab the lock of the cap and FOREVER seal your tank.

Thanks Larry, will keep your tip in mind next time filling up.

Thanks to all others with their input.

 

[Igofar]

I do the same. I have gone about 332 on the ST1300 on a full tank (Meaning gas was filled above the bar mentioned in this thread). But does anyone else think that if the gas is filled above the bar, up to the filler neck, it will go into the fuel cannister. See post #10

If you live in a hot area, yes, it can and will swamp your charcoal canister and damage it.
Most folks don’t care, or don’t know, but for some folks who need to have their bikes inspected or smogged, those canisters are stupid expensive to replace.

 

[Igofar]

How much fuel that goes in the tank depends if you fill it on the side stand or centerstand.

 

[etalors]

If you live in a hot area, yes, it can and will swamp your charcoal canister and damage it.
Most folks don’t care, or don’t know, but for some folks who need to have their bikes inspected or smogged, those canisters are stupid expensive to replace.

I live in IL. It does get warm every now and then. However, no bike inspections. Does a damaged charcoal canister affect bike performance.

 

[ST Gui]

Since it's lined up the the bottom of the fuel filler neck, I'm assuming it's an easier way to visually see the maximum level you can fill the upper tank to.

This is what I use it for but have no idea as to what Honda engineers had in mind when designing the tank. So I'm comfortable leaving it at that.

 

[TotaledTL]

Maybe has an anti-sloshing effect?