Yes, I'm going to flog this again... Yes, I've read the other posts... Yes, I've read Snowbum's article on float bowl fuel level. I rebuilt the Bing 32 carbs on my '80 R65 & I'm now in the process of tuning them. To help, I welded wide band O2 sensor bungs in front of the cross over tube so I can read the F/A mix using a AEM wide band F/A gauge as I motor around. The AEM gauge has been very helpful. Like everyone else, I've found the Bing 32 carb performance is very sensitive to float bowl fuel level. & now the question: Has anyone tried to set the float level on Bing 32 installed on a R65 using Snowbum's method? I'm trying to set the level to 24mm as Snowbum suggests but the carbs are at such an angle, I'm spilling fuel out of the float bowl as I remove it from the carb. I've also seen various measurements floating around: - 22.5mm - 23mm Is Snowbum's 24mm right? Or is this a set the fuel at a depth, balance the carbs & check the F/A mix by your favorite method. One thing I have noticed is that if one carb is running slightly richer/leaner than the other, the power imbalance is clear on my homemade differential manometer as I rev the bike towards my balance RPM. The closer the carbs are tuned to the same mixture, the more power & less vibrations the engine has. OK, cry havoc & loose the dogs of opinion!