Honda HSM1180i Manuel De L'utilisateur page 63

Intermittent clearing
Follow the steps below when the engine lugs against deep or heavy
snow.
1. Release the drive clutch lever and wait until the auger is clear of
snow and the engine picks up speed with the auger clutch switch
pushed and the main shift lever in LOW.
2. When the engine picks up speed, squeeze the drive clutch lever.
3. Repeat the above steps if engine speed is still reduced.
Clearing in steps
If the height of the snow is greater than the height of the snow
blowing mechanism, remove it in several steps as shown.
58
Wait until the auger
is clear of snow.
1st
2nd