My beta Evo seems to idle well about 3.25 turns out on the air screw. I'm convinced it's idling rich. I seem to be turning the idle screw in so much to maintain idle I think I'm bypassing the idle circuit. I'm considering a smaller pilot jet. It currently has the standard 55 pilot jet 130 main jet and middle clip on needle. Mid and top end power is perfect so I don't want to fiddle with that end.
I don't want to buy a pilot jet assortment kit but instead would just like to buy one original keihin pilot jet. I'm just wondering what size should I buy ? It seems keihin sell 52, 50, 48 and further down. How much of a difference would 52 make compared to my current 55 or will I need to get lower than a 52. Any suggestions welcomed.