DO YOU HOMEWORK BEFORE GOING IN!
Yes, not to involved of a job to pull the starter. If you decide to go that route look thru the interwebs for advice and be absolute sure to DISCONNECT THE BATTERY before messing with the starter. The heat shield can be a pain. The majority of starters are all built the same. Reference a good breakdown image of the internals to get an idea of how it works and what you will see inside.
The starter's mechanical internals can be accessed by removing the long bolts holding the cover on. Be patient while your in there, because some of the internals are plastic. Don't go crazy with relubing it either, just a gentle coat of grease will do. I used a Teflon modified grease that I acquired when back in the military, but I am sure a quality lithium grease will work fine.
