Depending on what comes in the kit? You'll have to pull the primary (use the water/tape method) and secondary, open them both up......assuming you know how to do this? Change the spring in each, change helix? (inspect the rollers), change ramps? Change pin weight. Inspect roller and arm bushings for wear/binding, replace o-rings, inspect buttons. Once completely dissassmbled throw the movable sheave/governer cup in the dishwasher for a good cleaning. Cleanliness is your friend.
