Used Mower

Just picked up a Honda model 214 lawnmower, and really would like
more info on this machine,runs great but first time buyer for a Honda.
To start the year of this mower would help. Thank's

believe this is the correct one https://www.manualslib.com/manual/69106/Honda-Hr214.html

Have the same machine now(also bought it used)

It is really powerful but it sticks when going up a slope. I have to give it a bit of an extra push or lift up its back wheel before it decides to move along again at a regular pace.

Sometimes the problem disappears .

My lawn is pretty uneven but I don't think that is the only problem.

Anyone have a similar problem?

Are these mowers easy to get parts for?