The GL1000 carburetor requires a unique float setting procedure. On the carb that the wing carb is related to, that on the 1960s-1970s CB450 twin, and in fact many other Honda carbs of the era, the float setting tool is allowed to enter into and rest in the gasket-retaining notches cast into the sides of the carburetor. But the very similar appearing GL1000 carburetor actually came from Honda's 600cc car, and thus there is a completely different ethic. The tool must NOT be placed into the notches or the setting will be incorrect. It will be way rich. Blame this inconsistency of similar carbs but different techniques on the car division at honda.