No luck in the repair thread. Thought I would try here. I have a 19HP Kawasaki that I would like to keep the carb in clean condition. Would it be a good idea to run a product like Sea Foam through the tank at every oil change? (50 hrs) If so, How much do I add to a gallon of gas? The directions are not clear as to how much needed to clean the carb Just says "add more to clean" and gives a very wide range or oz per Gal. (like 3 to 21oz) What do you use and how much? Also I have Sea Foam in a spray can. Boy does it make the engine smoke. does it help to clean the carb by just spraying in the carb as the engine is running???