NOTICE AVIS This manual has been written by the Yamaha Ce manuel a 6t6 6crit par Yamaha Motor .J Motor Company primarily for use by Yamaha Company _ l'intention des concessionnaires dealers and their qualified mechanics. It is not Yamaha et de leurs m6caniciens qualifi6s. I1 possible to put an entire mechanic's education n'est pas possible de mettre toute la forma- into one manual, so it is assumed that persons tion d'un m6canicien dans un seul manuel, et using this manual to perform maintenance il a donc 6t6 suppos6 que les personnes utili- and repairs on Yamaha outboard motors have sant ce manuel pour ex6cuter l'entretien et les a basic understanding of the mechanical con- rdparations des moteurs hors-bord Yamaha cepts and procedures inherent to outboard ont une compr6hension 61_mentaire des motor repair technology. Without such know- principes m6caniques et des proc6dures ledge, attempted repairs or service to this inh_rents _ la technique de rdparation des model may render it unfit for use and/or moteurs de hors-bord. Sans une telle connais- unsafe, sance, l'ex_cution de r_parations ou de l'entretien de ce module peut le rendre inappropri_ _ l'emploi et/ou dangereux. Yamaha Motor Company, Ltd. is continually Yamaha Motor Company, Ltd. s'efforce en striving to improve all models manufactured permanence d'am_liorer tous ses produits. Les by Yamaha. Modifications and significant modifications et les changements significatifs changes in specifications or procedures will be dans les caractdristiques ou les procedures forwarded to all Authorized Yamaha dealers seront communiques & tousles concession- and will, where applicable, appear in future naires Yamaha et paraftront, _ l'endroit editions of this manual, appropri6, dans les _ditions futures de ce .... manuel. Particularly important information is dis- Dans ce manuel, les informations particuli_re- tinguished in this manual by the following ment importantes sont rep_r_es par les nota- notations:: tions suivantes: NOTE: N.B.: A NOTE provides key information to make N.B. fournit les informations cl_ pour rendre procedures easier or clearer, les procedures plus faciles ou plus claires. "i_i _ _ ,.!_ _ _i A CAUTION indicates special procedures that ATTENTION indique les procedures sp_ciales must be followed to avoid damage to the qui doivent _tre suivies pour _viter d'endom- outboard motor, mager, le moteur hors-bord. WARNING: A WARNING indicates special procedures AVERTISSEMENT indique les procedures that must be followed to avoid injury to an speciales devant _tre suivies pour eviter un outboard motor operator or person inspect- accident & l'utilisateur du moteur hors-bord ing or repairing an outboard motor, ou gtla personne l'inspectant ou le reparant. OVE RSEAS SERVICE SERVICED'OUTRE-MER OVE RSEAS OPERATIONS OPERATIONS D'OUTRE-MER YAMAHA MOTOR CO., LTD. CIE, LTEE, YAMAHA MOTOR
CONTENTS GENERAL |NFORMAT|ON PEN|OD|C INSPECT|ONS AND ADJUSTNEHT$ .... " FUEL $YSTEN AND CANgUNETmOH POWERHEAD OVENHAUL .... LOWEN UNITOVENHAUL ....... ELECTNmCAL EECOIL STARTER RENOTE CONTNOL " U • APPENDICES
TABLE DES MATIERES RENSEIGNEMENTS GI_NERAUX INSPECTIONS ET REGLAGES PERIODIQUES SYSTI_MES D'ALIMENTATION ET DE CARBURATION REVISION DE LA TETE MOTRICE 1 A J" REVISION DU BOITIER D'HELICE PARTIE ELECTRIQUE LANCEUR A RAPPEL COMMANDE A DISTANCE APPENDICES
CHAPTER1. GENERAL INFORMATION ..... OUTBOARD MOTOR IDENTIFICATION .......................... 1,1 Engine serial number ........................................ 1-1 Model and serial number ..................................... 1-1 SPECIAL TOOLS ............................................. 1-2 For tune-up ............................................... 1-2 For engine service .......................................... 1-3 For lower unit service ....................................... 1-6 For electrical components ................................... 1-12 SEALING AGENTS AND LUBRICANTS .......................... 1-13 ....... Seallingagents ............................................ 1-13 Lubricants ............................................... 1-14 COOLING SYSTEM .......................................... 1,16 PROPELLER AND PROPELLER SELECTION 1-17 ...,-.
CHAPITRE 1. RENSEIGNEMENTS GI NIRAUX IDENTIFICATION DU MOTEUR HORS-BORD ..................... 1-1 Num6ro de s6rie du moteur ................................... 1-1 Num6ro de s6rie et de moddle ................................. 1-1 OUTILS SPI_CIAUX ........................................... 1-2 Pour la mise au point ........................................ 1-2 Pour la r6paration du moteur ................................. 1-3 Pour la r6paration du boftier d'h61ice ... ........................ 1-6 Pour les composants 61ectriques .............................. 1-12 AGENTS D'I_TANCHI_ITI_ ET LUBRIFIANTS ..................... 1-13 Agents d'6tanch6it6 ........................................ 1-13 Lubrifiants .............................................. 1-14 SYSTEME DE REFROIDISSEMENT ............................. 1-16 HI_,LICE ET CHOIX D'HI_LICE ................................. 1-17
GENE RALONFORMATION RENSEIGNEMENTS ......... GENE:RAUX OUTBOARD MOTOR IDENTIFICATION IDENTIFICATION DU MOTEUR HORS- BORD Engine serial number Num6ro de s6rie du moteur The engine serial number is stamped on the Le nurn6ro de s6rie du moteur est frapp6 sur plate attached to the cylinder body. la plaque attach6e au corps de cylindre. Model and serial number Num6ro de s6rie et de mod61e The model and serial number plate is attached La plaque d'identification de s6rie et de .... to the port clamp bracket, modble se trouve sur le support de moteur, _t b_ibord. ..,... i-1
This full service and repair manual is a complete factory service repair workshop manual for the Yamaha 25hp 30hp 2-Stroke Outboard Motor, covering the years 1983-2006.
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1983-2006 Yamaha 25hp 30hp 2-Stroke Outboard Motor Service & Repair Manual