125-200cc Fuel efficiency question

Hi all
i want to ask you about fuel efficiency in different type of riding.
I will be first) i got 144cc with 34mm carb, and jollymoto exhaust
Prev. ride was pretty hard, deep snow, 1,2 gears, almost all the time full throttle open and i get 20 liters per 100 kilometers!
Today i ride in more lighter conditions, and get 10L/100 km. Anyway it is way to much as for me, or isn't?

Pretty standard mate

Really? It's twice more than regular 450 4 stroke! Plus oil! It make me feel like i should change my bike...

What is your WR300 max consumption?

I've used a full tank before in 60km! Deeeeep sand
I also did 100km on Thursday of mixed flowing single trail/fireroads & didn't even hit reserve!
Standard tank 9.5L(can get 10.5L in there)

so it's much of how and where you ride?!
it's so unfair, 300cc gas gas riding with me, and doing same consumption, WR450 riding with me and making twice less consumption...

yes, that is logical ...

If you ride around in 1st and 2nd gear you will not go far on a tank of fuel on any bike.

This logic would be for the same overall gearing. Probably get the better two stroke mileage if the powervalve stays closed. Just like my pick up truck has variable valve timing. I went 25 miles on one turkey run on that 125 in my avatar to the gas available and could not quite get a gallon in, carried a little bottle of oil.