hey guys. i just bought a 95 skidoo formula with a 99 rotax 670 h.o. right now its only running on one cylinder. i took the fuel line of from the pump to my "dead carb" because i can visibly see the fuel stuck not getting through. The fuel kept leaking out of the pump leading me to believe its not the pump. i tried blowing through the fuel line into the carb and i couldnt. i believe the needle is stuck. is there a way to find out if its a stuck needle or may i have a bigger problem on my hands? By the way Im new here to sleds so i dont want to tear into the carb right away unless i have to.