06' just hit 33,000. Sat all winter, oil changed a few weeks ago. Noticed a ping, chirp, sound, etc? from engine while on recent trip. All gauges were good and ran strong. Put some 93 octane in. Will ...
If it sat all winter, did you put gasoline stabilizer in it and run it long enough to get through the system? If not, you might want to try your generator while you are at it.
For your original problem, I like to use a fuel system cleaner every now and then to avoid any build-up.