Freestyle Anyone have tuning experience with ET 52 mm billet carbs?

[waterfreak]

Trying to dial in a dasa 1200 with ms101total loss ignition and 52 mm et carbs . I’ve gonne down 4 low jet sizes and it still seems too rich and won’t idle . Pop off is at 14 psi
Raw unburn fuel is also coming of the exhaust .
Any advise would be appreciated

 

[Miggy]

I've got a set of ET52s on my ET1200 motor. I was having issues and was told to check my little kidney valve. It was bent up, not sealing properly. Had to double up that little kidney shaped valve. After that, they were easier to tune. I didn't do the actual tuning myself, but learnt that from those helping me.