Old RV camper will only run if I am pouring gas into the carb

Do you have fuel pressure from the fuel pump? Also how long has it been sitting? The float inside the carb could be stuck. Do you know what kind of carb is on the engine?

Do you have fuel pressure from the fuel pump? Also how long has it been sitting? The float inside the carb could be stuck. Do you know what kind of carb is on the engine?

The Rv has been sitting for 5 years. Fuel presure= ? Going to remove carb tomorrow

If its been sitting for 5 years the fuel itself can be bad also if you didn't add any fresh fuel to it.