I had a search for 'rpm' in the work shop manual last night to see if I could find any reference to driving habits and rpm range. There aren't any.
It does say that the clutch starts to engage at 1100 rpm and is fully engaged at 1800rpm.
The only thing I found which sort of supports what the mechanic was saying is that the engine reaches max oil pressure at 4000rpm. No mention of any potential clutch damage if running below that oil pressure though.
Does anyone have access to BRP service bulletins and could check if this is something issued recently?
So one last clarifier.
The mechanic was WRONG. He was basing his "advice" on the 998 clutch which doesn't fully engage until approximately 3200 rpm. Therefore if I was riding around at less than 3000 rpm the clutch, in his mind, would be "slipping" which could result in overheating and excessive wear.
As per the above mentioned shop manual the 1330 is fully engaged by 1800 rpm. Done deal. No concern for clutch wear when riding around at 2000 to 3000 rpm.
The previous posts concerning "lugging" is a separate issue and is bad for the engine not the clutch.