Bike suspension needs maintening just like a car. Changing tires, checking brakes, and even the occasional repainting. An even more vital repair for those riding on rougher terrain like mountain trails is shock and fork repair or replacement. Your suspension system is what will help you take those drops and bumps on rocky roads without pitching over the front end of the bike, so maintaining it is necessary.
Find an open work area and spread out your drop cloth and holding containers. Stabilize your bike.
Carefully remove the shocks by unscrewing the necessary leads and connections. Inspect the pieces for any damage.
Set the new shocks in place for the front wheel and hand-tighten the connectors. Repeat the process for the rear wheel and shocks.