Robert, (et al)
Thank you very much for posting this. I had the exact same issue yesterday with our 30" of snow.
The auger clutch lever would not stay engaged with the drive lever engaged. I will tend to this later this week when I have time.
I have another (most likely related) question.
My unit is a wheeled HS928 from 1999 (I bought it brand new as a left-over in 2000). I am truly amazed by this piece of machinery. In the 15 years I have had this (with no exaggeration) it has started on the first compression stroke EVERY season. I add a few drops of oil in the cylinder and STABIL in the fuel before I put it away for the summer.
Anyway, last year I had an issue with the auger lever not DISENGAGING when released. It felt like stiction, or a binding cable perhaps. I examined it as best I could and lubed the questionable points but to no avail. This is a safety issue, as when I release the auger lever, it stays engaged for quite some time until vibration eventually causes it to release.
The only way I could find to alleviate the issue was to remove the (auger clutch lever spring as pictured above.). I know this is only a band-aid fix, and was hoping for a more permanent solution.
Could the two issues be related, and I just need to disassemble the levers and shafts, give them a good cleaning and lube?
Any advice much appreciated.