Another RPM issue. Seems like something fell out of adjustment. I mowed half of the lawn and after a break I went to start it up and it sounded like it was at about 1/2 throttle.
I tried playing with the throttle adjustment bolt (not sure of the official name for that but it's the adjustable bolt shown in this pic) to no avail.
If I grab the governor arm that has with multiple spring holes and manually pull on it slowly, it seems to rev up fine. Could anyone give me any pointers on what else I might try adjusting?