Yes, the choke pull-knob is vertical on Pulsa-Jet and horizontal on Vacu-Jet. That is a reliable way to tell one from the other. The model number will also tell you, if the carburetor and tank have not been replaced. On horizontal crankshaft engines, a 1 as the third digit means Vacu-Jet and a 2 means Pulsa-Jet. So, the 60102 was 2 advertised HP in 1963, and 2.25 advertised HP in 1968, then later decreased back to 2 HP. Interesting.
