Running out of fuel
I'm working on a 81 ski doo blizzard the problem i'm having is my carbs are running out of fuel at mid to high speed. I'v replaced every fuel line including in the tank, rebuilt the fuel pump,and gone through the carbs. Still the problem exists. When i say i'm running out of fuel i mean the fuel lines to the carbs are visiably empty. The machine will not move unless you let it idle and pull up more fuel or hit the primer. From idle to mid range the sled runs fine.... Stock motor, Stock jetting.