Do you tune up now or wait for warmer temps?? OK I'll admit it. I put the bike away dirty. And sputtering. and backfiring. I drove the he** out of it last summer and will do again this year. The plugs are rusty on top. This is NOT a complaint. I am happy that I used the bike a lot last season. I love my bike, but I am not babying it! i want to ride now so is it ok to wait for warmer weather to "tune it"?