Hello , take a few infos 😉 Have such a Boatian rice cooker 4 stroke 50ccm I bought without carburettor ! I built up the new and cylinder foot and head with piston everything renewed valves and everything renewed. Well ,so the box starts up and unfortunately runs only on stand gas well with a new carburettor but it was also. Nozzles I changed everything from 60-95 in 5 steps ..without success good at the 95 nozzle was probably a little heavy was bitle a lot of fuel ran up into the exhaust 😉 How do I adjust this carburetor ?? What is to be admitted ? He runs and gives me gas he scrapes off without power ….like problem I had before with another there I only had to make nozzle smaller but this does not work here. Must also say that it is a 19er carburetor with 20mm membrane / slider ..there must be a solution please for help ….mfg P.S. He jumps over E- and Kickstarter in compression has on 9.5 bar ….