Friend was giving this away because has not been run in a while and could not start. Drained gas tank and noticed the fuel valve as not letting fuel pass. Cleaned and was able to get some gas to pass. Got it started and ran fine until fuel was cut off again. Don't have a manual or parts list. Anyone know how to get a parts list or manual for is model - Model No GEN-5000-0JS0. Any assistance is appreciated.