If you are afraid the carbs aren't clean enough, you can ultrasoon clean them with the right liquid.
Did you use new carb gasket kits?
Oh yea, all new gaskets, always. In fact, if I take these jokers apart once again I will put new gaskets on them yet again.
Don't have access to an ultrasound device, unfortunately. Not sure what solvent to even use to clean up the plastic carbs. I think BRP engine tuner will be the way to go.
The one gasket that looks like a terrible design is the side cover plate and gasket. It just doesn't seem to sit very flat because of the odd positioning of the screws.
But, I did spray the heck out of the carbs with sea foam spray (petroleum based, plastic safe, supposed to clean fuel varnish) and let them soak for a while in it. Then I blew everything clean with compressed air. A LOT. I doubt the carbs are the issue. I also took off the throttle body and cleaned all the orifices in those very well. I have never cleaned up carbs and still had an issue with them. And I have done a ton of carbs in my day.
I want to rule out all other possibilities before I try and REDO these carbs.
