Chainsaw Repair

I've been cleaning my saws to sell off for the last week.
I've gone as far as trying a 3"mushroom buffer rated for 2500rpm on a 20K rpm air die grinder using car wax scratch remover.

But found after just starting on my old 562XP coated in spruce gum, maple sap and dried canola.
This works the best:
Simoniz rim cleaner, let it sit for a few minutes then use a nylon pot scrubber pad the crap falls off.
I've used this stuff on my pickups aluminum rims that are coated with clear coat and this cleaner doesn't hurt the clear coat.
Then to finish off I used this Silicone HD9 Lube. Dries to the touch and brings a nice shine. Protects plastic rubber and good from -40 below to  +400F.
Here's a pic.