Hi your Fuffiroller 4T driver, one of you may have noticed a minimal loss of gasoline on the carburetor drain/overflow hose of his CV carburetor? The amount is hardly worth mentioning, but had already noticed some drops at the lower end of the tube on the attached photo some time ago. In order to make the thing measurable, I quickly fixed a plastic tube at the end of the tube. The output came about on a journey of 10 km. Greeting Wolfi P S: The condensate of the crankcase ventilation, which has accumulated in the transparent hose with the stopper, is comparatively much more.