Whole Chicken:Smoker temperature - 250°F.Smoking time - 30 to 45 minutes/pound.Finished temperature - 165°F.
All in all, to smoke a whole chicken, it should take about 2 and a half to 3 hours when cooking a 5-pound bird at 275 degrees Fahrenheit. But as the temperatures of grills can vary, it is better for you to use a probe thermometer to see how long you should cook the meat.