Cove base adhesive usually comes in a caulking tube. It is much thicker and gets “assembled” wet. It also fills in gaps and surface irregularities. I would only use cove base adhesive on vinyl base. It should be in the flooring department.
I’m guessing that the jets are plugged almost solid. The bowl vent is a much larger opening and located up high in the bowl. I think Gon has already had it turning over. Small risk of a cylinder being full of gas.
I think this is as easy as the floats and needles being stuck and gas flowing out the float bowl vents. After the gas tank pictures one can only imagine what the inside of the bowls look like. Just pull the carbs as a set and pull the bowls. Bet they’re gummed up good.
Think that Eminence Front solo has some alternate tuning in it. It would take some time to copy Pete. He was the best rhythm guitar player to ever play lead. Love his playing.