You're not OT at all. The manual for my chainsaw says very emphatically
that I should end the season by running it until empty. Every season I
forget.

The next Spring, I have learned that putting a small amount of gas without
the normal oil proportion, then cranking for a while, I can get it to start.
I let it run for a few minutes to sort of clean out, then stop it and put
in the PROPER oil and gas mix. Runs like a damn charm the rest of the
summer.

Bob Moody (cheapskate at large)