Here I have an EL 250 B (1992), which has an increase in performance to 34 HP. Since in 1996 already oversized pistons were installed and the power increased by inserting 2 sleeves into the carburettor underpressure pistons.Now the carburettors have to be overhauled, my Kawafritze said that there would have to be new nozzles inside.Are there still the original Kawa nozzles or have been installed by the glue.Increasing also other nozzles. Can I possibly edit the built-in nozzles, thought there so on Reibale or do they have to be exchanged for Xkm in general? Thank you and goodbye Greetings The Chicken