Going to check the fuel lines/filter, before biting the bullet at a repair shop. I mean, it's like antique. According to coding the B&S engine is 45 yrs old.
I know about enough about engines to be completely useless, but Britesea gave you some great sounding advice WOOHOO! Tiller is no longer "locked" and running like a champ! So thankful!(it's called a hydraulic lock).