Kurt, I knew nothing about cleaning the carbs and it took me about 3 hrs to replace the lines and clean the carbs and i was going pretty slow. it took me about an hour for the first carb and 15 minutes for the second. if you have the manual it's actually pretty easy, just be careful not to tear the diaphram. i was bogging down at 4000 rpm and 30 mph, after cleaning i'm running at 6700 rpm and 60 mpm. does anyone know if that is top performance. This is a '96 GSX with 80 hrs. I have not cleaned the RAV valves yet.