Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

I found that my "new to me" Toro 824 Power Shift blows some blue smoke after I come off idle to full throttle.  It only lasts for a second or so.  I havent ran it long enough yet to see just how much it is burning to a tank of gas  Is there a way to determine if its rings or valve guides?  What is the procedure for checking the compression and what are the specs for it?

Warm engine, shot of oil in spark plug hole and pull it thru a few times?  I added an ounce of Seafoam to the gas and a few ounces of Marvel Mystery oil to the crankcase so I can try and loosen up any possible stuck rings or other Mystery Gremlins.

Thanks
Packo