As far as running lean or not!
prior to installation of just one new tbr header - all was perfect.
After installing just one pipe - all still was perfect
Immediately after fire up after both pipes are on - it was sluggish at idle and rev. Good with 1/3 choke.
Good with no choke at 4k rpm - standing still.
Have not ridden yet.
I have come out 1/2 turn and test twice so am at 1 full turn from where they are from the start.
I did not screw them all the way in and then out. did not see the need since all was perfect before I started this whole thing.
I appreciate every thought.
You need to know where your at to fix the problem ... turn them all the way in and back out 2 3/4"turns to start. One maybe way off and ... out means turns them clockwise .. easy to screw up
and go the wrong way.