I was given an older Craftsman snowblower the other day, 10-15yrs old, 8hp 26". Pretty good shape for the age. It was locked up solid. The first thing I did when picking it up was check the oil. Just as I thought, it was run low on oil. It barely registered on the stick and was dirt black. I added 8ozs of mmo and T6 to the sump. I removed the plug, warmed up some MMO, squirted into cylinder and let it sit for an hour. Clamped a vise grip onto the crank, tapped it a few times and it started to move. After getting it to move freely, I went through the carb and gave it a whirl. It took a few pulls but fired up and ran good. Will be doing a couple mmo cleanings of the sump to get the crud out. A little normal maintenance and it should be a good freebe. Just thought I would share what I did for a siezed motor.