Ok guys - Ive tried and tested EVERYTINGS on this bike and ALL has checked out from leak down test, compression test , synched carbs, different needles, jets, new coil etc. All of that and still runs lean af on the let carb. So frustrating. I have the needles on the richest setting and still the left is lean and right richy rich. I changed the reeds, rebuilt n cleaned carbs 3 times. sucks. any ideas guys? I will say this , ill be swapping the carbs to day to see if the lean follows the carb, I just don't see how the carb itself could be the problem. Also I swapped the coils boots and changed plugs with no luck. Im stumped.

 

do you have the small vacuum line going between carbs on?