Pulled out the old Snapper rear engine rider today, it had been stored upright for the past year with gas still in it. It hasn't been ran in almost 2. I pulled the dipstick out and it looks like there's gas in the oil. Is it from the engine sitting on its side for so long or is something wrong? I didn't realize the gas was left in there all this time... I was gonna clean the carb later and see if I can bring her back to life. Its the old 8hp Tecumseh.