Lurch
Make up a maintenance schedule from your owner's manual, and better yet, get a repair manual.
List the jobs you're comfortable doing and the jobs you're rather take pot luck with at the stealership. Do all the jobs according to the maintenance schedule. Know the specs for the jobs you take in, and inspect everything before you accept the bike. For the work you take to the shop, try to find some way to rig tattletales on the bike to see if they really did the job...a drop of paint on the joint where the valve cover meets the head, etc. If they charge you, tell you they did the work, but you can see that they really did not touch it, complain then and there to the state agency that regulates motor vehicle repair shops. Do it from your cell phone while you're standing in front of the service manager.