When I have the fuel bottle on one side, the stove keeps getting fuel, but when I flip the bottle over the stove runs out of gas. Is this normal or is something wrong with my stove?

Thanks

Yes. If I remember correctly, it should say on or off. The pickup will be down in the on position. Up in the off position.

One of the tubes on your pump has to be submerged in the fuel, the other tube acts like a vent in the headspace. So if your bottle is placed upside down with the vent tube submerged and the feed tube above the liquid, the pump won’t work and thus the stove doesn’t work.

I’ve never had an issue but I could see this happen to me…very good info to know.

T

Well, obviously, when you have the fuel bottle on the left, the fuel is on the bottom and the tube can draw the fuel. When you put it on the other side, the fuel is on the top and it can't get at the fuel! Logical! LOL

Nahhh, just kidding. I'm trying to understand how you'd put the fuel bottle on different sides. I have a couple Whisperlite stoves (which connect the same as the Dragonfly stoves) and the bottle goes on the same side every time. What am I missing?

Jackfish: "Well, obviously, when you have the fuel bottle on the left, the fuel is on the bottom and the tube can draw the fuel. When you put it on the other side, the fuel is on the top and it can't get at the fuel! Logical! LOL


Nahhh, just kidding. I'm trying to understand how you'd put the fuel bottle on different sides. I have a couple Whisperlite stoves (which connect the same as the Dragonfly stoves) and the bottle goes on the same side every time. What am I missing?"

Pump orientation is all about how far or not far you screw it onto the threads. If you always tighten to the same spot it'll always lay in the same spot. Someone that doesn't go very tight vs someone that cranks the pump down will have their bottle laying on very different "sides"

But I agree, the only way to flip it 180 would be to have the pump facing down?

Looking at the pump, there is a white 'straw' with a filter on it, this is the fuel inlet. Look at the orientation of this straw relative to the on/off valve on the pump. Once the pump is attached to the fuel bottle this will let you know the direction of the straw. Orient the fuel bottle so the straw is facing the bottom of the fuel bottle where the fuel will be settled - if the straw is oriented upwards, it may be pulling air instead of fuel.
Hope this helps!

Totally normal for this to happen. The fuel pickup tube is sucking air not fuel when it is turned the other way.

I've used my dragonfly for years and never had this happen. Makes sense, just not sure why I've avoided it. It seems if valve is pointing up, all should be fine. I wonder if the intake tube could have been moved or deformed.

Jackfish: "Well, obviously, when you have the fuel bottle on the left, the fuel is on the bottom and the tube can draw the fuel. When you put it on the other side, the fuel is on the top and it can't get at the fuel! Logical! LOL


Nahhh, just kidding. I'm trying to understand how you'd put the fuel bottle on different sides. I have a couple Whisperlite stoves (which connect the same as the Dragonfly stoves) and the bottle goes on the same side every time. What am I missing?"

Nothing!
The flip the bottle is used on Primus and Optimus and some users have transferred that to MSR. None of my MSR directions mention flipping the fuel bottle, and the fittings to the one way coupler are quite tight. They may allow some twisting but for the sake of reliability I never do this. The Primus and Optimus connections allow the flipping freely and is in the usage instructions.

butthead