I'm about done riding for the season (yes, I'm a wimp - I hate getting too cold). How best do I winterize my TTR-250? Right now my plans are to keep the oil and gas in and start it up every day or two. If I do, does it matter how long I keep it running? I've been just running it long enough so I can take the choke off without it stalling. Will that do more harm than good?