Good evening, I ran through my cellar archive the other day and found an interesting test report from around the beginning of 2000, in which the pollutant emissions of various motorcycles were compared with U-cat and carburetor and with G-cat and injection system. I noticed that with the models with Lambdasonde (i.e. G-Kat) one drove extremely rarely on Lambda 1, apparently only in the test bench run, which caused a then ruched engine run. In this respect, the market is slowly getting moving in the case of micro-units (the exhaust emission standards will soon be greatly tightened). There are already various 49 cm3 – four-stroke engines for the two-wheeler range, which have a lambdage-controlled injection system. Now I have compared the consumption values of such constructions with those of previous carburettor models (with uniform pressure carburettor, which have to be adjusted in the fat range, as it is known, around 0.9) and have come to the conclusion that ke The suspicion is that small engines are generally less likely to travel in the stoichiometric range, or that they can be better driven with a fatter setting? Is there any experience that shows that smaller units are more likely to start rucking, with the same Lambda value? Or is one simply using the at the moment still lax exhaust gas values for a mixture setting, which is as often as possible maximum fat (and thus maximum performance-promoting) off?