I Haven't verified if there is a similar bulletin for 22 models?
For 17 - 19 models -
There was a Honda service bulletin for an ECM fan control software update.
Take care in pressure washing your radiator core - fins, follow the other suggestions above for coolant mix ratio (use Honda premix and fill burp tank), water wetter - Purple Ice (my add that helped) and install a fan switch kit from the hondasxs.com store, to manually manage heat.
Most importantly, run your buggy in low range when loaded and in soft or sandy conditions.
You'll save your clutches and other problems too.
Good luck