Devilin AblueDress!
New member
Now I don't or ever had power valves. And I'm sure something like this has been tried. I have used the Yamaha Carburator dip to get rid of carbon deposits in the combustion chambers. I can usually saturate the affected area and let it sit for a day. Come back and it's all been liquified.
I would also think that if ya went down to the thrift store, one could pick up an old, awful colored, avocado or orange colored 1970s era crockpot. Then place the entire can of carb dip inside the crockpot. Something like Berryman.
They come with a coating that's suppose to stop stuff from sticking to them. IMO there is a good chance that they guys complaining about very little miles and a stuck or sticky valves are lacking in the coating department. Not sure if your carb soak cocktail is coating safe.