+1 and I agree. IF you have no exhaust leaks then you need a little fuel added at the 0% throttle position. Mine popped like crazy until I fine tuned the 0% throttle position on both cylinders via my PCIII. Like the man said, I went a little at a time, buttoned up the bike,,, took it for a ride,,if it still popped, back to the garage, seat off, computer hooked up..added a little more fuel to the 0% throttle position. Trial and error...and like he also said,,LEAVE THE OTHER TABLES ALONE. Now my bike just gurgles a little bit.
Good luck and ride safe.

 

There's your answer...popping when lean.

 

Yes, you can enrichen the low end. BUT... your performance won't be maximum according to my tuner (who is excellent in my opinion) because he stated that he couldn't get all of the decel popping out, that it would be ok, and that my PCIII does not tune finely enough to keep your performance up but your popping out. (I.O.W. it doesn't dynamically adjust AFR at any rpm, just for a range of rpm, and it doesn't really understand 1800 rpm but 0 throttle position).

The zero throttle position comment is right on. If you have taken your throttle cables apart for maintenance lubing and then adjusted them according to the shop manual, you also have to reset your 0 throttle position.

However, I have not worked with SE Tuners at all... but I'm willing to get, at their price, that they are similar to the PC's and not as sophisticated as the Thunder Maxs, etc.

C#

 

A good dyno tune will eliminate most, if not all, of the popping