Noob Question: Fuel Level While Filling Up

[T100ICE]

My last motorcycle was an '81 Honda, and when I unscrewed the fuel cap on it, I could just see all the way to the bottom of the tank. I had seen a diagram in the Bonneville owners manual that lead me to believe it would be very similar on new bikes.

well, I went to give Bonnie a drink for the first time today, and realized this was overly simplistic. When I took off my gas cap, all I could see was a chute that curved off and out of view. I have no idea how to tell when the fuel level is at the bottom of filler neck.

And to make matters worse, the last time I filled up a motorcycle, the pump nozzle was easy enough to see around to eyeball the fuel level.

But now all the pumps have that giant rubber flange on the end. If there was anything to see in the tank, it would be quite a trick to see it around that.

So here is my noob question: how do you tell when Bonnie has had enough to drink at the fuel station?

 

[Rocky]

My T100 is an older model so I'll have to leave this question to those with the newer models who may also have, or had, the same problem.

 

[solomon]

My bike is old. But, same principle. When I fill I insert just an inch of the dispensing spout, can see around into tank that way. Must keep eyes open though, risk of over-filling.

 

[T100ICE]

Ugh, I'm just a dummy. I went down to the garage to take a pic of what I was talking about, and noticed from the other side of the bike it looks like I was expecting, I can see straight down to the bottom of the right side of the fuel tank. I was just confused by seeing the wall of the frame cut-out through the filler-hole while the bike was at an angle. So I guess the filler neck is just the space the cap screws into, there's no structure further down to monitor

 

[sikatri]

My bike is old. But, same principle. When I fill I insert just an inch of the dispensing spout, can see around into tank that way. Must keep eyes open though, risk of over-filling.

Agree and fill slowly.

 

[Xavier]

My last motorcycle was an '81 Honda, and when I unscrewed the fuel cap on it, I could just see all the way to the bottom of the tank. I had seen a diagram in the Bonneville owners manual that lead me to believe it would be very similar on new bikes.

View attachment 54320

well, I went to give Bonnie a drink for the first time today, and realized this was overly simplistic. When I took off my gas cap, all I could see was a chute that curved off and out of view. I have no idea how to tell when the fuel level is at the bottom of filler neck.

And to make matters worse, the last time I filled up a motorcycle, the pump nozzle was easy enough to see around to eyeball the fuel level.
View attachment 54322

But now all the pumps have that giant rubber flange on the end. If there was anything to see in the tank, it would be quite a trick to see it around that.

View attachment 54321

So here is my noob question: how do you tell when Bonnie has had enough to drink at the fuel station?

I have a Bonneville. I just put the tip of the gas handle in and watch for the rising gasoline to become visible