sea foam didnt work for me I run it threw my gen and shut it down by running it out of gas less than 4 months it was gummed up ...ruined 2 moto cycle carbs ,,, if you dont run it once a week for about 5 to 10 min. your asking for trouble .J.M.O. Ive had this discussion on another site about a year ago and got some heated feed back , saying it aint the gas !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! MY BIG OLE BUT , IT IS TOO THE GAS !!!!!!!!!!!!!!!!!!!!!!!!!! im not that old but I never had any problems with small engines sitting of for a year or two and still start and run fine even with old gas still in the tank ... it may have stunk , but it would still run the engine .... you can run your gen. 2 times a month and may be ok ...... I have used stable with the same results .... I just run it ( if I can remember ) .. My sons moto cycle was screwed up and my daughters moto cycle was screwed at the same time... we cleaned the carb on them both till they were worn out , had to choke it or wouldnt idle ,,, had to get a new carb for both ... they run like a top right now . EBAY carbs were cheap made , but they work perfect (right now ) Well pops I done got carried away .. sorry about that ,,, I guess Im done too ...