Trans you can adjust it without raising it. Just loosen the axel bolt nut an watch the hash marks on each side of the frame, so they are lined up the same. You need about an inch or inch an a quarter of slack, check the owner's manual. If it streched to much (which it shouldn't be with 350 mi.) when you adjust check an see if you have plenty of clearance between the tire an taillight housing up in the fender since you have the classic. The classic has the 112 link chain because of the housing, while the A model use's a 114 link chain. If you saw my previous thread about my tail end I think my chain being streched in combination with the preload on the rear shock being set to low had alot to do with it. If you leave the chain that loose , like Biko said it can wear the sprocket's prematurely, plus when you jump on the throttle hard it could jump a tooth, an you'll feel that an won't like it.
