The boat is a 2009 with about ten hours.
I would bet you it didn't come from Volvo with a Demon (Barry Grant) carb on it.
Obviously not a Volvo person.
Volvos do use Demon carbs.
To the OP. Check with your Volvo dealer, there are a couple of service bulletins affecting the Demon carbs. Depending on your SN it may or may not be affected.
Got me there.....I never in a million years would have thought Barry Grant was supplying 2bbl carbs for Volvo.
LOL, don't you just hate when that happens.
PS: Planning a trip to W Jeff this summer sometime. So, be prepared