You are correct Jim, there are a couple steps missing. The poster would be WELL advised to get a manual.
On my 720, a little different than the 70, I motor the big diesel over with no compression til the oil pressure comes up. Then I release the decompression lever, motoring on full compression, and then advance the throttle, and it will start.
I've never started a 70 with the one lever system, the 720s and 820s I've run all had the separate decompression lever. Can someone on here explain the one lever system??