Just picked up this genny from a pawn shop and looks like it had a hard life. Looks like it was used for construction. No hour meter and the oil was very black. I changed the oil with Honda 10w-30 power equipment oil, threw in a new NGK plug and cleaned and oiled both engine air filters. It starts first pull now and seems to run fine. Have E0 gas in tank. Anything I'm missing or need to address? Will be used in connection with my EU2000 for camping with my trailer