Apologies for resurrecting this thread - the HUT216 had been away for the very dry winter & early Spring - but back out and in active use now.
Cut a long story short - it still isn't running quite right when it gets duress on it when cutting - so to me the areas that might need adjustment are either the governor or the carb.
I've got the carb set at factory levels, I'm meticulous about draining fuel from it and using stabliser etc - so I doubt it's the issue.
I tried to adjust the governor previously (before storage) and it wasn't as easy as on the GCV160 that I also have. Would the governor seem to be the likely 'lowest hanging branch' to start with?
Only other things to note are I've never adjusted/checked the valve clearances on it - by the log book it'd be due, I've done before on a GCV160 - was pretty easy - but unsure if this might be factor.
The oil in it is a combo of SAE30, diesel 5W-30 and 15W-40 - so I don't think viscosity should be an issue as Honda recommends 10W-30 in it.
Thank you in advance.