Hi I have a bravo long track and drive down the trail with slid in tow going to the cabin. I be driving about 5 min and start to loose power. The when I let go the gas she will shut off. Seams like she getting air locked? I try to prime her but she pick it up onless I take out the spark plug. That seams to on air lock her. Then I can start her up and go again. Also when that happens there’s a line the goes for the tip on the gas tank to black container that rubber banded on the back of the dash. This line fills full of gas and the container. None of this happens when the skidoo is up on a Stan. She spin over good and lots of power.