Bought this bike a few months ago, and really enjoy riding it. So far I've changed the oil (twice ) put new tires on (front & rear), changed the air filter, new chain, and rode it a lot! I sold my z28 so now it's time to give the bike some lovin, not sure what to do next.. I know it couldn't hurt to change the spark plug & check the valves.. and is it worth sending my suspension off to be set to my riding style/weight? Any recommendations are helpful. Thanks!