Yamaha Jog 50 CE50 CG50 86-91 Scooter Service Repair Workshop Manual

YAMAHA CE50 (S-T) GENUINE YAMAHA Service Manual \ LIT-11616-CE-50

YAMAHA CE50S Service Manua l LI T -11616-05-43

CE50S SERVICE MANUAL ©1985 by Yamaha Mo t o r Co r po r a t io n , U.S. A. 1st Edi t ion, Sept emb e r 1985 All r ight s r eser ved. Any r epr i nt i n g or unauthor ized use wi th ou t the written per mission of Yamaha Mo t o r Cor por a t ion , U. S. A. is expr essl y pr oh i b i t ed. Pr i nt ed i n U.S.A. P/N LIT-11616-05-43

NOTICE This manual was written by the Yamaha Mo t o r Company pr imari ly for use by Yamaha dealers and their qualified mechanics. It is not possible t o put an ent i r e mechanic's educa- t io n i nt o o n e ma n ual, so i t is assumed that persons using this book t o perf or m mai nt e n a n ce a n d repai rs o n Yama h a scoot er s have a basic under st andi ng of the mechanical concept s a n d procedures inherent i n scoot er repai r t echnol ogy. Wi th ou t such k n owl edge, a tt emp t ed repai rs or service t o this model may r ender i t unfit t o use a n d / o r unsaf e. Yama h a Mo t o r Company, Ltd. is continually str iving t o i mpr ove all models manuf ac- t ur ed by Yamaha. Mod ifi ca ti o n s and signi f icant changes i n speci f icat ions or procedures wi ll be f o r wa r ded t o al l Au th o r ized Yamaha deal ers a n d will, wh e r e applicable, appear i n f u t u r e edi t ions of this manual. TECHNICAL PUBLICATIONS SERVICE DI V I S I ON MOTORCYCLE OPERATI ONS Y A M A H A MOTOR CO. , LTD. HOW TO USE THIS MANUAL PARTICULARLY IMPORTANT INFORMATION This material is distinguished by the following notation. NOTE: A NOTE provides key information to make procedures easier or clearer. CAUTION: A CAUTION indicates special procedures that must be followed to avoid damage to the scooter. ^^^^^^^B A WARNING indicates special procedures that must be followed to avoid injury to a scooter operator or person inspecting or repairing the scooter. MANUAL FORMAT All of the procedures in this manual are organized in a sequential, step-by-step format. The information has been compiled to provide the mechanic with an easy to read, handy reference that contains comprehensive explanations of all disassembly, repair, assembly, and inspection operations. In this revised format, the condition of a faulty component will precede an arrow symbol and the course of action required will follow the symbol, e.g., • Bearings Pitting/ Damage-* Replace. EXPLODED DIAGRAM Each chapter provides exploded diagrams before each disassembly section for ease in identifying correct disassembly and assembly procedures.

© RSEKT INK) J*j ENG ICARB £ ® E L E C IB © @ IRSF ADJ & (D C OO L tt PHASc?^ APPX AS © ® E3 o^S © , © Q Q © r^BS£__ ^^E__ ^SE. © n ILLUSTRATED SYMBOLS (Refer to the illustration) Illustrated symbols (T) to (8) are designed as thumb tabs to indicate the chapter's number and content. (T) General information (2) Periodic inspection and adjustment S Engine Cooling system (5) Carburetion ® Chassis (7) Electrical (8) Appendices Illustrated symbols (9) to @ are used to identify the specifications appearing in the text. (D Filling fluid © Lubricant (Q) Tightening © Wear limit, clearance @ Engine speed @ fi, V, A Illustrated symbols © to © in the exploded diagram indicate grade of lubricant and location of lubrication point. © Apply engine oil © Apply gear oil @ Apply molybdenum disulfide oil © Apply wheel bearing grease @ Apply lightweight lithium-soap base grease © Apply molybdenum disulfide grease ® Apply locking agent (LOCTITE®)

INDEX GENERAL INFORMATION <£% GENERAL INFORMATION ma 1 PERIODIC INSPECT IONS AND ADJUSTMENTS % ^ 1 PERIODIC INSPECT IONS AND ADJUSTMENTS ADJ rM ENGINE OVERHAUL \ » ENGINE OVERHAUL ENGfcl CARBURETION 4 CARBURETION CARB^J CHASSIS <fiy® CHASSIS CHAS^J ELEC T RICAL S ELEC T RICAL ELEC^J APPENDICES AS APPENDICES APPXJJ

CHAPTER 1 GENERAL INFORMA T IO N SCOOTER IDENTIFICATION 1-1 VEHICLE IDENTIFICATION NUMBER 1-1 ENGINE SERIAL NUMBER 1-1 IMPORTANT INFORMATION 1-2 ALL REPLACEMENT PARTS 1-2 GASKETS, OIL SEALS, AND O-RINGS 1-2 LOCK WASHER/PLATES AND COTTER PINS 1-2 BEARINGS AND OIL SEALS 1-3 CIRCLIPS 1-3 SPECIAL TOOLS 1-4 FOR TUNE-UP 1-4 FOR ENGINE SERVICE 1-4 FOR CHASSIS SERVICE 1-6 FOR ELECTRICAL COMPONENTS 1-6

GEN INFO <£% SCOOTER IDENTIFICATION GENERAL INFORMATION SCOOTER IDENTIFICATION VEHICLE IDENTIFICATION NUMB ER The vehicle identification number 0 is stamped into the frame. NOTE: The vehicle identification number is used to identify your scooter and may be used to register your scooter with the licensing outhority in your state. S t a rt i n g Ser ial Number : JY A1 UV00*GA 67 31 0 1 ENGINE SERIAL NUMB ER The engine serial number (2) is stamped into the crankcase. NOTE: The first three digits of these numbers are for model identifications; the remaining digits are the unit production number. S t a rt i n g Ser ial Number : 14T-673101 NOTE: Designs and specifications are subject to change without notice.

Yamaha Jog 50 CE50 CG50 86-91 Scooter Service Repair Workshop Manual

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