Hello again ,
thanks for the helpfull advice , as I understand there was a sy250 and an sy 250 R/acing ?
I may have the sy racing with lighter flywheel advanced igntion timing ect.... but maybe not .
I guess the easiest way to tell is to check the timming marks .
I agree with DGshannon , I also think the extra flywheel weight and softer power will be an advantage in this climate , and at my level .
will have to give the slow throttle a go , just cheked mine and its a fast one !