That's my strategy too. I don't do anything to my mowers/rototiller over winter, and they start every summer... so far. I make a point to ride each of my bikes at least an hour each couple weeks figuring that will help avoid problems. The only problem I've had with a fuel system was when I added a Seafoam, I believe it cleaned the gunk out of my tank right into my jets. and to quote Nanabijou "Now, of course, my personal anecdotal account should never pass for sound scientific evidence "