Problems i have founed with the Stromburg 175 CD is the float in the bottom of the carb .The do get holes in them .Then as it fills up the chamber they dont cut off the fuel .And you will need the large allen key type tool to adjust the mixture . Over in the uk we have a clever little toll that you pop inthe engine ,in place of the spark plug .In the base of the tool you have a glass bottom .Idea is,, that when fitted in the engine , and running that you can see the combustion in the cylinder and you know mixture is set right when it shows blue. I came across my old adjusting tool in the garage yesterday.No use to me anymore . A lot of these Strombergs were fitted in pairs on the Triumph 2000 .But more of a problem than the old SU carbs of the day..A lot of owners swaped out the Stromburgs for the SU much better to tune up in pairs or tripple .Lots of info on the Stromburg if you go to Google serch engine ,,look to the top right you will see images. Then click on it , then in the search box you put Stromburg 175 CD ..