Table Of Contents - Yamaha YZ250F(V) Owner's Service Manual

Table of Contents

Important Notice6
F.i.m. Machine Weights10
Weights Of Machines Without Fuel10
Particularly Important Information12
Finding The Required Page12
Description12
Renseignements Generaux13
How To Read Descriptions14
Illustrated Symbols16
Index18
Table Of Contents20
General Information26
Engine26
Informazioni Generali27
Machine Identification28
Vehicle Identification Number28
Engine Serial Number28
Model Label28
Numero Di Serie Del Mezzo29
Identification De La Moto29
Important Information30
Preparation For Removal And Disassembly30
Informations Importantes31
Wichtige Informationen31
Informazioni Importanti31
All Replacement Parts32
Gaskets, Oil Seals And O-Rings32
Lock Washers/Plates And Cotter Pins32
Bearings And Oil Seals32
Circlips34
Checking Of Connection36
Verification Des Connexions37
Controllo Del Collegamento37
Special Tools38
Outils Speciaux41
Attrezzi Speciali47
Control Functions50
Engine Stop Switch50
Clutch Lever50
Shift Pedal50
Bedienungselemente Und Deren Funktion51
Funzioni Di Controllo51
Fonctions Des Commandes51
Front Brake Lever52
Rear Brake Pedal52
Fuel Cock52
Hot Starter Lever52
Cold Starter Knob52
Detachable Sidestand54
Valve Joint54
Spark Plug Wrench54
Nipple Wrench54
Fuel56
Carburant57
Starting And Break-In58
Starting A Cold Engine58
Mise En Marche Et Rodage59
Starten Und Einfahren59
Avviamento E Rodaggio59
Starting A Warm Engine62
Restarting An Engine After A Fall62
The Engine Fails To Start62
Break-In Procedures64
Torque-Check Points64
Points De Verification Des Couples De Serrage67
Anzugsdrehmomente Kontrollieren68
Punti Di Controllo Serraggio69
Cleaning And Storage70
Nettoyage Et Remisage71
Pflege Und Lagerung71
General Specifications74
Chassis76
Maintenance Specifications77
General Torque Specifications90
Definition Of Units90
Caracteristiques91
Caracteristiques Generales91
Caracteristiques D'entretien94
Caracteristiques Generales De Couple107
Definition Des Unites107
Moteur107
Technische Daten108
Allgemeine Technische Daten108
Wartungsdaten111
Elektrische Anlage123
Allgemeine Anzugsmomente124
Carburante125
Dati Tecnici125
Dati Tecnici Generali125
Specifiche Di Manutenzione132
Specifiche Generali Di Serraggio141
Definizione Delle Unità Di Misura141
Cable Routing Diagram142
D'acheminement Des Cables143
Kabelführungsdia Gramme143
Schema Percorso Dei Cavi143
Regular Inspection And Adjustments154
Maintenance Intervals154
Controllie Regolazioni Periodiche163
Intervalli Di Manutenzione163
Pre-Operation Inspection And Maintenance166
General Inspection And Maintenance166
Kraftstoff168
Controlli E Manutenzione Da Compiere Prima Della Messa In Funzione169
Coolant Level Inspection170
Motore171
Coolant Replacement172
Radiator Cap Inspection174
Radiator Cap Opening Pressure Inspection176
Cooling System Inspection176
Clutch Adjustment178
Throttle Cable Adjustment180
Throttle Lubrication180
Hot Starter Lever Adjustment182
Air Filter Cleaning182
Engine Oil Level Inspection186
Engine Oil Replacement190
Oil Pressure Inspection194
Pilot Screw Adjustment194
Engine Idling Speed Adjustment196
Valve Clearance Inspection And Adjustment196
Brake System Air Bleeding208
Parte Ciclistica209
Front Brake Adjustment210
Rear Brake Adjustment212
Front Brake Pad Inspection And Replacement212
Rear Brake Pad Inspection And Replacement216
Rear Brake Pad Insulator Inspection220
Brake Fluid Level Inspection220
Sprockets Inspection222
Drive Chain Inspection222
Drive Chain Slack Adjustment224
Front Fork Inspection226
Front Fork Oil Seal And Dust Seal Cleaning228
Front Fork Internal Pressure Relieving228
Front Fork Rebound Damping Force Adjustment228
Front Fork Compression Damping Force Adjustment230
Rear Shock Absorber Inspection232
Rear Shock Absorber Spring Preload Adjustment234
Rear Shock Absorber Rebound Damping Force Adjustment236
Rear Shock Absorber Low Compression Damping Force Adjustment238
Rear Shock Absorber High Compression Damping Force Adjustment240
Tire Pressure Check242
Spokes Inspection And Tightening242
Wheel Inspection242
Steering Head Inspection And Adjustment244
Lubrication250
Electrical252
Spark Plug Inspection252
Impianto Elettrico253
Ignition Timing Check254
Seat, Fuel Tank And Side Covers256
Removal Points258
Side Cover258
Number Plate258
Air Scoop258
Exhaust Pipe And Silencer260
Tubo Di Scarico E Silenziatore261
Silencer And Exhaust Pipe262
Silencer Fiber Replacement262
Radiator266
Radiator Inspection268
Radiator Assembly And Installation268
Carburetor272
Carburetor Disassembly274
Pilot Screw278
Needle Valve280
Throttle Valve280
Jet Needle280
Float Height282
Float282
Starter Plunger284
Accelerator Pump284
Accelerator Pump Timing Adjustment294
Carburetor Installation294
Camshafts298
Cylinder Head Cover298
Arbres A Cames299
Alberi A Camme299
Assembly And Installation Camshaft308
Decompression System308
Timing Chain Tensioner308
Cylinder Head316
Cylinder Head Inspection318
Cylinder Head Assembly And Installation320
Valves And Valve Springs322
Soupapes Et Ressorts De Soupapes323
Ventile Und Ventilfedern323
Valvole E Molle Valvole323
Valve Lifter And Valve Cotter324
Valve326
Valve Spring334
Cylinder And Piston340
Cylindre Et Piston341
Zylinder Und Kolben341
Piston And Piston Ring342
Cilindro E Pistone345
Piston Ring346
Piston Pin348
Piston Ring And Piston348
Cylinder350
Clutch354
Clutch Boss358
Clutch Housing And Boss358
Primary Driven Gear358
Clutch Spring358
Friction Plate360
Clutch Plate360
Push Lever Shaft360
Push Rod360
Oil Filter Element, Water Pump And Right Crankcase Cover368
Impeller Shaft372
Oil Seal372
Oil Delivery Pipe372
Impeller Shaft Gear374
Right Crankcase Cover376
Kickstarter Crank378
Water Pump Housing380
Oil Filter Element380
Balancer382
Balancer Shaft Drive Gear And Balancer Shaft Driven Gear384
Primary Drive Gear, Balancer Shaft Drive Gear And Balancer Shaft Driven Gear384
Balancer Shaft384
Balancer Shaft, Balancer Shaft Drive Gear And Balancer Shaft Driven Gear386
Oil Pump388
Pompe A Huile389
Oil Tank392
Kick Shaft And Shift Shaft400
Arbre De Kick Et Axe De Selecteur401
Kickhebelwelle Und Schaltwelle401
Albero Pedale E Albero Del Cambio403
Kick Shaft Assembly404
Shift Guide And Shift Lever Assembly404
Segment404
Kick Shaft And Ratchet Wheel404
Shift Shaft406
Stopper Lever406
Kick Idle Gear412
Cdi Magneto414
Volant Magnetique Cdi415
Magnete Cdi415
Rotor416
Woodruff Key416
Engine Removal422
Depose Du Moteur423
Motor Demontieren423
Drive Sprocket426
Rimozione Del Motore427
Engine Installation428
Brake Pedal428
Neutral Switch And Hose Guide430
Crankcase And Crankshaft432
Carter Moteur Et Vilebrequin433
Carter E Albero Motore433
Crankcase Bearing436
Crankcase438
Crankshaft440
Timing Chain And Timing Chain Guide440
Oil Strainer442
Oil Delivery Pipe 2442
Transmission, Shift Cam And Shift Fork450
Transmission452
Gears452
Shift Fork, Shift Cam And Segment454
Front Wheel And Rear Wheel460
Roue Avant Et Roue Arriere461
Ruota Anteriore E Posteriore461
Rear Wheel462
Wheel Bearing (If Necessary)464
Wheel464
Wheel Axle466
Brake Disc466
Front Wheel468
Front Brake And Rear Brake478
Frein Avant Et Frein Arriere479
Freno Anteriore E Posteriore479
Rear Brake480
Brake Caliper Disassembly482
Brake Master Cylinder Disassembly484
Brake Fluid486
Brake Caliper Piston486
Brake Caliper Piston Seal Kit488
Brake Master Cylinder488
Brake Caliper490
Brake Hose490
Front Brake Caliper492
Rear Brake Caliper494
Brake Master Cylinder Kit496
Front Brake Master Cylinder498
Rear Brake Master Cylinder500
Front Brake Hose502
Rear Brake Hose504
Front Fork510
Et Caches Lateraux511
Front Fork Disassembly512
Damper Assembly514
Adjuster516
Inner Tube516
Base Valve518
Collar520
Fork Spring520
Outer Tube522
Forcella Anteriore523
Front Fork Assembly524
Handlebar544
Grip546
Steering556
Steering Ring Nut558
Lower Bearing558
Bearing Race558
Steering Stem558
Bearing And Bearing Race560
Lower Bracket560
Swingarm566
Swingarm Disassembly568
Bras Oscillant569
Forcellone Oscillante569
Cap570
Bearing570
Relay Arm570
Connecting Rod572
Bearing And Oil Seal572
Rear Shock Absorber582
Tube D'echappement Et Silencieux583
Amortisseur Arriere585
Ammortizzatore Posteriore585
Electrical Components And Wiring Diagram596
Color Code596
Partie Electrique597
Composants Electriques Et Schema De Cablage597
Map-Controlled Cdi Unit598
Principal Of 3-Dimensional Control598
Ignition System598
D'admission599
Motor600
Systeme D'allumage603
Impianto Di Accensione605
Spark Gap Test606
Couplers, Leads And Ignition Coil Connection Inspection606
Engine Stop Switch Inspection606
Ignition Coil Inspection608
Cdi Magneto Inspection608
Neutral Switch Inspection610
Cdi Unit Inspection610
Throttle Position Sensor System612
Drosselklappensensor614
Sistema Sensore Posizione Farfalla615
Couplers And Leads Connection Inspection616
Throttle Position Sensor Coil Inspection616
Throttle Position Sensor Replacement And Adjustment618
Carburateur619
Vergaser619
Carburatore619
Throttle Position Sensor Input Voltage Inspection622
Tuning624
Carburetor Setting624
Abstimmung625
Main System628
Pilot System628
Main Jet Adjustment630
Effects Of Changing The Main Jet (Reference)630
Pilot Jet Adjustment632
Effects Of Adjusting The Pilot Jet (Reference)634
Jet Needle Groove Position Adjustment634
Effects Of Changing The Jet Needle Groove Position (Reference)634
Jet Needle Adjustment636
Effects Of Changing The Jet Needle (Reference)636
Leak Jet Adjustment (Accelerator Pump Adjustment)638
Relationship With Throttle Opening638
Carburetor Setting Parts640
Examples Of Carburetor Setting Depending On Symptom642
Selection Of The Secondary Reduction Ratio (Sprocket)646
Fahrwerk647
Drive And Rear Wheel Sprockets Setting Parts648
Front Fork Setting650
Change In Amount And Characteristics Of Fork Oil650
Fourche651
Teleskopgabel651
Setting Of Spring After Replacement652
Lenker653
Front Fork Setting Parts654
Rear Suspension Setting654
Choosing Set Length656
Federbein659
Rear Shock Absorber Setting Parts660
Suspension Setting664