Spring's about to be sprung and you'll need to get your ride(s) in shape. here's a friendly reminder to wrench BEFORE you ride. yeah, this means you. jot down this simple checklist and avoid around 90% of problems that'll put you on the side of the road faster than.
now, get to wrenchin':
change oil / filter
check / replace sparkplugs
add fresh gas and check / clean / replace fuel / air filter element
check chain alignment / tension
check motor and trans mount nuts / bolts
check exhaust bolts / flanges
lubricate zerk grease fittings
check tires / tire pressure - a sitting bike in cold temps can bleed air pressure
check wheels / spokes
check electric / ignition connections / battery - wipe down battery between posts to avoid current leaching and slowly draining the charge
grease / lubricate cables
check brake hoses / fluid levels
check bulbs, especially brake lights
and, finally - fix that pesky loose whatever that you've been putting off since last season!