Honda Express Moped Scooter NC 50 1978 - Express II, SR This is the official 1977 to 1983 Honda NA/NC 50 Express Factory Service Manual. It provides service, repair and maintenance information for 1977 to 1983 Honda NC50 Express moped/scooters, 1979 to 1981 na 50 Express II models as well. HONDA NA50 EXPRESS II SHOP MANUAL Pdf Download. wwwalslib››Honda Manuals›Scooter›na50 express IIView and Download Honda Na50 express II shop manual online. Na50 express II Scooter pdf manual download. Also for: Nc50 express.