How do you adjust rear shock 2005 suzuki c90?

To adjust the rear shock on a 2005 Suzuki C90, locate the preload adjuster on the rear shock, which may be a knob or a collar. Use a spanner wrench or the appropriate tool to turn the adjuster; turning it clockwise increases preload for a stiffer ride, while counterclockwise decreases preload for a softer ride. Ensure the bike is on a level surface and consider the rider's weight and riding style when making adjustments. Always test ride after adjustments to find the optimal setting for comfort and handling.