It seems like the engine isn't getting enough gas when under loand and it will stall if I keep the wand turned on.

First guess, fouled spark plug clean, check gap and reinstall. 2 Dirty air filter or air restriction-check air filter and pathway. 3 Water in gas clean out tank refill with fresh gas? 4 carb adjusted to rich-note position of mixture screw and turn slightly CCW, no difference try slightly CC? no difference? put back when it orginally was. 5 Check spark should be a blue arc and not yellowish orange? 6. dirty carb or gummed up carb (samething) dissamble and clean or try to cheat and spray carb cleaner in tank and down the carb (see instructions on can) see if it ungums it.