I have a 5.5 HGJAB Onan Genset with a starting problem. I have not used the set for any extended time since I bought the HR class A. However I have been exercising it until last fall. It refused to start, and since it was getting cold, I let it go until now. Guess what. It still will not start. After pulling off a spark plug lead to make sure the mag was still going, I pulled the gas line to the carb. Got plenty of fuel from the pump. Still no start. Gave it a very light whiff of starter fluid and it ran until the fumes were gone. I am going to dismantle the carb with the idea of removing the probable gunk that formed from sitting. Any thoughts before I tear in to the carb. (I did drain the carb bowl to make sure no water).