Yamaha WR250 Manuals

Manuals and User Guides for Yamaha WR250. We have 1 Yamaha WR250 manual available for free PDF download: Owner's Service Manual

YAMAHA WR250 Owner's Service Manual

YAMAHA WR250 Owner's Service Manual (695 pages)

WR Series

Brand: YAMAHA | Category: Motorcycle | Size: 43.52 MB

Table of Contents

Important Notice
6
Safety Information
6
Machine Weights
10
Description
12
- Finding the Required Page
  12
- How to Use the Manual
  12
Renseignements Generaux
13
- How to Read Descriptions
  14
- Manual Format
  14
- Illustrated Symbols
  16
- Index
  18
- Table of Contents
  20
Moteur
23
Partie Cycle
23
Partie Electrique
25
Chapter 7

26
- Description
  26
- Engine
  26
- General Information
  26
- Fahrzeugbeschreibung
  27
- Informazioni Generali
  27
Chapter 1

28
- Machine Identification
  28
  - The Engine Serial Number
    28
  - The Vehicle Identification Number
    28
- Fahrzeug-Identifizierung
  29
- Identification de la Machine
  29
- Identificazione del Veicolo
  29
- Important Information
  30
- Preparation for Removal and Disassembly
  30
- Informations Importantes
  31
- Informazioni Importanti
  31
- Wichtige Informationen
  31
  - All Replacement Parts
    32
  - Bearings and Oil Seals
    32
  - Gaskets, Oil Seals and O-Rings
    32
  - Lock Washers/Plates and Cotter Pins
    32
  - Circlips
    34
- Checking of Connection
  36
- Anschlüsse Prüfen
  37
- Controllo Dei Collegamenti
  37
- Verification des Connexions
  37
- Special Tools
  38
- Outils Speciaux
  41
- Spezialwerkzeuge
  44
  - Utensili Speciali
    47
  - Clutch Lever
    50
- Control Functions
  50
  - Engine Stop Switch
    50
  - Shift Pedal, Kickstarter Crank
    50
- Armaturen und Deren
  51
- Fonctions des Commandes
  51
- Funzioni DI Comando
  51
  - Decompression Lever
    52
  - Front Brake Lever
    52
  - Rear Brake Pedal
    52
  - Throttle Grip
    52
  - Cold Starter Knob
    54
  - Fuel Lock
    54
  - Hot Starter Knob
    54
  - Flap
    56
  - Lights Switch
    56
  - Valve Joint
    56
  - Fuel
    58
- Essence
  59
- Kraftstoff
  59
- Starting a Cold Engine
  60
- Starting and Break-In
  60
- Anlassen und Einfahren
  61
- Avvio E Rodaggio
  61
- Mise en Marche Et Rodage
  61
  - Restarting an Engine after a Fall
    64
  - Starting a Warm Engine
    64
  - The Engine Fails to Start
    64
  - Break-In Procedures
    66
- Torque-Check Points
  66
- Torque-Check Points
  68
- Points de Verification de Couple de Serrage
  69
- Anzugsmomente Kontrollieren
  70
- Punti Per Il Controllo del Serraggio
  71
- Cleaning and Storage
  72
- Nettoyage Et Rangement
  73
- Pulizia Ed Immagazzinaggio
  73
- Reinigung und Stillegung
  73
- Storage
  74
Chapter 2

76
- General Specifications
  76
- Chassis
  77
- Definition of Units
  93
- Allgemeine Technische Daten
  112
- Technische Daten
  112
- Kraftstoff
  113
- Wartungsdaten
  115
- Allgemeine Anzugsmomente
  129
- Einheiten
  129
  - Specifiche
    130
- Specifiche Generali
  130
- Specifiche DI Manutenzione
  133
- Coppie DI Serraggio
  147
- Definizione Delle Unità DI Misura
  147
- Specifiche Relative alle
  147
- Cable Routing Diagram
  148
  - Cheminement des Cables
    149
  - Kabelführung
    149
- Schema del Percorso Dei Cavi
  149
Chapter 3

160
- Maintenance Intervals
  160
- Intervalli DI Manutenzione
  169
  - Chassis
    172
  - Engine
    172
  - General Inspection and Maintenance
    172
  - Pre-Operating Inspection and Maintenance
    172
- Controlli Preliminari Emanutenzione
  175
- Motore
  177
  - And Side Covers
    178
  - Radiator Cap Inspection
    180
  - Cooling System Inspection
    182
  - Radiator Cap Opening Pressure Inspection
    182
  - Clutch Adjustment
    184
  - Throttle Cable Adjustment
    186
  - Decompression Adjustment
    188
  - Throttle Lubrication
    188
  - Air Filter Cleaning
    190
  - Engine Oil Level Inspection
    194
  - Engine Oil Replacement
    198
  - Engine Oil Replacement
    200
  - Oil Pressure Inspection
    202
  - Pilot Screw Adjustment
    202
  - Engine Idling Speed Adjustment
    204
  - Valve Clearance Inspection and Adjustment
    204
  - Exhaust Table
    214
  - Intake Table
    214
  - Valve Clearance Inspection and Adjustment
    214
  - Spark Arrester Cleaning (for USA)
    218
  - Brake System Air Bleeding
    220
  - Chassis
    220
- Parte Ciclistica
  221
  - Partie Cycle
    221
  - Front Brake Adjustment
    222
  - Front Brake Pad Inspection and Replacement
    224
  - Rear Brake Adjustment
    224
  - Rear Brake Pad Inspection and Replacement
    228
  - Brake Fluid Level Inspection
    232
  - Rear Brake Pad Insulator Inspection
    232
  - Drive Chain Inspection
    234
  - Sprockets Inspection
    234
  - Drive Chain Slack Adjustment
    238
  - Front Fork Inspection
    240
  - Front Fork Internal Pressure Relieving
    240
  - Front Fork Oil Sealand Dust Seal Cleaning
    240
  - Front Fork Rebound Damping Force Adjustment
    242
  - Front Fork Compression Damping Force Adjustment
    244
  - Rear Shock Absorber Inspection
    246
  - Rear Shock Absorber Spring Preload Adjustment
    246
  - Rear Shock Absorber Rebound Damping Force Adjustment
    248
  - Rear Shock Absorber Low Compression Damping Force Adjustment
    250
  - Rear Shock Absorber High Compression Damping Force Adjustment
    252
  - Spokes Inspection and Tightening
    254
  - Tire Pressure Check
    254
  - Wheel Inspection
    254
  - Steering Head Inspection and Adjustment
    256
  - Lubrication
    260
CHAPTER 6 Electrical

262
- Spark Plug Inspection
  262
- Moteur
  263
- Parte Elettrica
  263
  - Ignition Timing Check
    264
  - Replacing the Headlight Bulbs
    266
  - Adjusting the Headlight Beams
    268
  - Engine
    270
  - Seat, Fuel Tank and Side Covers View
    270
  - Exhaust Pipe and Silencer View
    272
  - Tubo DI Scarico E Silenziatore
    273
  - Silencer and Exhaust Pipe Inspection
    274
  - Silencer and Exhaust Pipe Installation
    274
- Radiator
  276
  - Radiator Assembly and Installation
    278
  - Radiator Inspection
    278
- Carburetor
  282
  - Carburetor Disassembly
    284
  - Carburetor Inspection
    288
  - Carburetor Removal Points
    288
  - Jet Needle Inspection
    290
  - Needle Valve Inspection
    290
  - Throttle Valve Inspection
    290
  - Float
    292
  - Float Height
    292
  - Accelerator Pump
    294
  - Air Cut Valve
    294
  - Carburetor Assembly and Installation
    294
  - Starter Plunger
    294
  - Accelerator Pump Timing Adjustment
    304
  - Carburetor Installation
    304
- Camshafts
  310
- Cylinder Head Cover
  310
- Arbres a Cames
  311
- Camshaft Removal Points
  314
- Alberi a Camme
  315
  - Camshaft Inspection
    316
  - Camshaft Sprocket Inspection
    318
  - Camshaft Assembly and Installation
    320
  - Timing Chain Tensioner Inspection
    320
- Cylinder Head
  328
- Testata del Cilindro
  329
  - Cylinder Head Inspection
    330
  - Cylinder Head Assembly and Installation
    332
- Valves and Valve Springs
  336
  - Soupapes Et Ressorts de Soupape
    337
  - Valvole E Molle Valvole
    337
  - Ventile und Ventilfedern
    337
  - Valve and Valve Springs Removal Points
    338
  - Valve Lifter and Valve Cotter
    338
  - Valve Inspection
    340
  - Valve Measurement Steps
    344
  - Lapping Steps
    346
  - Valve Lifter Inspection
    348
  - Valve Spring Inspection
    348
  - Combination of Cylinder Head and Valve Lifter
    350
  - Valve and Valve Spring Assembly and Installation
    350
- Cylinder and Piston
  354
- Cilindro E Pistone
  355
- Cylindre Et Piston
  355
- Zylinder und Kolben
  355
  - Cylinder and Piston Inspection
    356
  - Cylinder and Piston Removal Points
    356
  - Piston and Piston Ring
    356
  - Piston Ring
    360
  - Cylinder and Piston Assembly and Installation
    362
  - Piston Pin
    362
  - Cylinder
    364
- Clutch
  368
  - Clutch Boss
    372
  - Clutch Housing and Boss Inspection
    372
  - Clutch Removal Points
    372
  - Primary Driven Gear Inspection
    372
  - Clutch Plate Inspection
    374
  - Friction Plate Inspection
    374
  - Push Lever Shaft Inspection
    374
  - Push Rod Inspection
    374
  - Clutch Assembly and Installation
    376
  - Push Lever Shaft Installation
    376
- Oil Filter Element, Water Pump and Right Crankcase Cover
  382
  - Impeller Shaft
    386
  - Oil Delivery Pipe Inspection
    386
  - Oil Filter Element, Water Pump and Right Crankcase Cover Removal Points
    386
  - Oil Seal
    386
  - Bearing Inspection
    388
  - Impeller Shaft Gear Inspection
    388
  - Impeller Shaft Inspection
    388
  - Oil Seal Installation
    388
  - Impeller Shaft Installation
    390
  - Right Crankcase Cover
    390
  - Kickstarter Crank Installation
    392
  - Oil Filter Element
    394
  - Water Pump Housing
    394
- Balancer
  396
- Oil Pump
  402
- Pompe a Huile
  403
  - Oil Pump Inspection
    406
  - Oil Pump Assembly and Installation
    408
- Kick Shaft and Shift Shaft
  412
- CDI Magneto
  426
- Magnete CDI
  427
  - Volant Magnetique CDI
    427
  - CDI Magneto Inspection
    428
  - CDI Magneto Removal Points
    428
  - Rotor Removal
    428
  - Woodruff Key Inspection
    428
  - CSI Magneto Assembly and Installation
    430
- Engine Removal
  434
- Depose du Moteur
  435
- Motor Demontieren
  435
- Rimozione del Motore
  435
  - Drive Sprocket Removal
    438
  - Engine Removal Procedure
    438
  - Brake Pedal Installation
    440
  - Engine Installation
    440
  - Oil Hose and Neutral Switch Installation
    442
- Crankcase and Crankshaft
  444
- Carter E Albero Motore
  445
- Carter Et Vilebrequin
  445
  - Crankcase Bearing
    448
  - Removal Points Crankcase
    450
  - Crankcase Inspection
    452
  - Crankshaft Removal
    452
  - Timing Chain and Timing Chain Guide Inspection
    452
  - Crankshaft Inspection
    454
  - Oil Strainer Inspection
    454
  - Crankcase Bearing Assembly and Installation
    456
  - Crankshaft Installation
    456
- Transmission, Shift Cam and Shift Fork
  462
  - Bearing Inspection (Transmission)
    464
  - Gears Inspection
    464
  - Transmission Removal
    464
  - Shift Fork, Shift Cam and Segment Inspection
    466
  - Transmission Installation
    466
Chapter 5 Chassis

472
- Front Wheel and Rear Wheel
  472
- Front Wheel Exploded Diagram
  472
- Partie Cycle
  473
  - Rear Wheel Exploded Diagram
    474
  - Rear Wheel Inspection
    476
  - Rear Wheel Removal
    476
  - Wheel Bearing Removal
    476
  - Roue Avant Et Roue Arriere
    477
  - Ruota Anteriore E Ruota Posteriore
    477
  - Brake Disc Inspection
    478
  - Rear Wheel Axle Inspection
    478
  - Front Wheel Assembly and Installation
    480
  - Rear Wheel Installation
    486
- Front Brake and Rear Brake
  492
  - Front Brake Exploded View
    492
  - Frein Avant Et Frein Arriere
    493
  - Freno Anteriore E Posteriore
    493
  - Rear Brake Inspection
    494
  - Brake Caliper Disassembly
    496
  - Brake Master Cylinder Disassembly
    498
  - Brake Caliper Piston Removal
    500
  - Brake Fluid
    500
  - Front Brake and Rear Brake Removal Points
    500
  - Brake Caliper Piston Seal Kit
    502
  - Brake Master Cylinder Inspection
    502
  - Brake Caliper Inspection
    504
  - Brake Caliper Piston Cleaning
    504
  - Brake Hose Inspection
    504
  - Front Brake and Rear Brake Assembly and Installation
    504
  - Front Brake Caliper Installation
    506
  - Rear Brake Caliper Installation
    508
  - Brake Master Cylinder Kit Cleaning and Installation
    512
  - Front Brake Master Cylinder Installation
    514
  - Rear Brake Master Cylinder Installation
    516
  - Front Brake Hose Installation
    518
  - Rear Brake Hose
    520
  - Brake Fluid Filling
    522
- Front Fork
  526
- Forcella Anteriore
  527
  - Fourche Avant
    527
  - Front Fork Disassembly
    528
  - Front Fork Cap Bolt Removal
    530
  - Front Fork Handling Note
    530
  - Damper Rod Inspection
    532
  - Damper Rod Removal
    532
  - Inner Tube Removal
    532
  - Base Valve Inspection
    534
  - Fork Spring Inspection
    534
  - Outer Tube Inspection
    534
  - Front Fork Assembly
    536
  - Front Fork Cap Bolt Inspection
    536
  - Front Fork Installation
    548
- Handlebar
  552
  - Brake Master Cylinder Removal
    554
  - Grip Removal
    554
  - Handlebar Inspection
    554
  - Handlebar Assembly and Installation
    556
- Steering
  564
  - Ball Race Removal
    568
  - Lower Bearing Removal
    568
  - Steering Ring Nut Removal
    568
  - Steering Stem Inspection
    568
  - Bearing and Ball Race Inspection
    570
  - Lower Bracket Assembly and Installation
    570
- Swingarm
  576
  - Frein Avant Et Frein Arriere
    577
  - Swingarm Disassembly
    578
- Bras Oscillant
  579
  - Forcellone Oscillante
    579
  - Bearing Removal (Swingarm)
    580
  - Connecting Rod Inspection
    580
  - Relay Arm Inspection
    580
  - Swingarm Inspection
    580
  - Bearing and Oil Seal Installation
    582
  - Swingarm Assembly and Installation
    582
- Rear Shock Absorber
  590
- Caches Lateraux
  591
- Radiateur
  591
  - Tuyau D'echappement Et Silencieux
    591
  - Ammortizzatore Posteriore
    593
- Amortisseur Arriere
  593
- Ignition System
  608
- Map-Controlled CDI Unit
  608
  - Principal of 3-Dimensional Control
    608
  - Bloc CDI Controle Par Microprocesseur
    609
- Motor
  610
- Ignition System Inspection
  612
- Carburante
  615
- Utensili Speciali
  615
  - Couplers and Leads Connection Inspection
    616
  - Engine Stop Switch Inspection
    616
  - Spark Gap Test
    616
  - Impianto DI Accensione
    617
  - Ignition Coil Inspection
    618
  - To Inspect the CDI Magneto
    618
  - CDI Unit Inspection
    620
  - Neutral Switch Inspection
    620
  - Elektrische Anlage
    621
  - Throttle Position Sensor System Inspection
    622
  - Circuit du Capteur de Papillon des Gaz
    623
  - Couplers and Leads Connection Inspectoin
    626
  - Throttle Position Sensor Coil Inspection
    626
  - Throttle Position Sensor System
    626
  - Throttle Position Sensor Replacement and Adjustment
    628
- Carburateur
  629
- Carburatore
  629
- Vergaser
  629
- Fourche Avant
  669
  - Setting of Spring after Replacement
    670
  - Spring Preload Adjustment
    670
- Guidon
  673
  - Front Fork Setting Parts
    674
  - Choosing Set Length
    676
  - Rear Suspension Setting
    676
  - To Set the Spring after Replacement
    678
  - Rear Shock Absorber Setting Parts
    682
  - Suspension Setting - Front Fork
    684
  - Rear Shock Absorber Setting
    685
- Federbein
  688
- Teleskopgabel
  688

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