sorry try in english without using translation on computer the point is uk cb50j has no ignion advance and retard mechanism built into magneto flywheel this could be the first piont to start tuning there is no support in uk for this model but ikn germany seems to be lots of support will try to learn language so bif i make a mess of writing or translateing put me down joined for common intrest
Hello again, now you wrote in English its much easier to understand your question ;) First of all: Like your English model, the German cb50j has no ignion advance mechanism. What we do is either use the flywheel of the Honda CY80 which has an ignition advance mechanism or do some modifications on the ignition retard-System which is used in the CB50 flywheel, so that it becomes an ignition advance system. Another posibility of tuning the german version is just prevent the retard system from moving.
You say: the point is uk cb50j has no ignion advance and retard mechanism built into magneto flywheel
Are you sure that the English model doesn't have at least the retard system? If it's not there the only possibility of tuning will be the CY80 oder xr80 Flywheel, but the XR80 Flywheel doesn't generate energy für Lights. Kevin