I have not seen one of those pumps but on all my steel tank bikes I punch a hole in the fill tube to allow for quicker and fuller refills.
The tube is made of very thin metal and holes are easily punched through with a sharp object, I use a brass hammer to reduce the chance of a spark.
Some of the 19 rides in my shed
2014 V2, Snoopy
2009 Wee, Pumbaa the pig
WR450F, The Blue Postie Bike
YZ250N smoker with rego, Stinky.
Yamaha MT09 (FZ09), The Scud missile.
Club Lead not Club Med.
He with the most toys wins.
Out of my depth in a puddle.
Live life on the edge you will see more that way.
Ridding a motorcycle keeps things in balance.
At the end of each trail and at the end of each day history is made.