02-13-2019, 08:50 PM
I think it depends on what type of fuel they run on? I'm not familiar with generators but I would think diesel would go bad long before an unleaded. I've stored mowers and my motorcycle for 6-8 months without starting and they fired right up. I had a snow blower I didnt use for 3yrs, it fired right up and ran without any issues. So, inexperienced thinking considered, I think the issue would lie with diesel.