I changed the oil, changed the tranny oil, cleaned the pan gasket....can't seem to find the oil filter.....maybe only on the 500? (Kymco Xciting) and can't find the air filter, and can't locate the spark plug...doesn't show where it is in the handbook. Does anyone know where these things are located on the 250?? Pleaseeeeeeeeee help..... Thank you very much...Larry