When on the Euro tour going up particularly high and long pass my carb bowl was so hot that it could not be touched, the point where the carb meets the manifold had water droplets at the point of freezing. Definitely evaporation going on . Waited for her to cool down and finished the clump as in photo ( or at least what I hope will be a photo. Oh 1938 Opal , standard v26 carb

Location: Oakley, hants