Not sure if I should ask this in the Kawi section but here we go anyways. I need to put heavier springs on my bike because I am 40lbs heavier than the person I purchased it from. I plan to send the front end in to get new springs. The question I have is can I do the rear by myself? I have the manual and service manual and have watched many videos online so I have a good base line. Just looking to buy the spring and swap it with the stock one that's on there now. Any input helps. Also, I fired my bike up for the first time in a few weeks and noticed the throttle hanging slightly after revving. Basically when I rev the bike the rpm's don't drop immediately like they should. They hang up for a sec and drop very slowly, I am thinking this is a dirty carb. Unless anyone has another idea? If so, I was looking to tear down the rear end of my bike to swap my spring, and while I'm at it clean the carb. Does this sound feasible? I'm new to all of this and just looking for some guidance. Thanks!