Im having a hard time trying to figure out why my warrior wont start? When I put gas in the sparkplug hole,it'll fire up and run on the fuel I put into it directly then stop..... I checked the fuel flow from the gas tank valve and fuel leaks out when set to run just by gravity.I also unbolted the base of the carb and changed the main jet and reinstalled, but she still just cranks and cranks but won't start? Any ideas on what it could be? My throttle cable moves super smooth ,nice and free......im lost.