Need help with an old Briggs and Stratton

[jfkbengals]

(06-28-2021, 09:12 PM)masonbengals fan Wrote: Once you get it going run some Seafoam thru it.

So it was already running, only sluggish.  I'm hesitant to use Seafoam, as I recall my father having a very expensive repair bill for one of the motors on his boat after using it.  He passed 17 years ago, so maybe it has improved since then, but it made me gun shy none the less.  WTS, the PB Blaster product I picked up has the same purpose of cleaning up the carbon deposits that may have formed on the valves and piston.  I've seen some good before and after photos from the PB product taken with borescopes, and if it works as it should on the mower I might try it on my log splitter and riding mower.