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2008 YZ250FX
Yamaha 2008 YZ250FX Manuals
Manuals and User Guides for Yamaha 2008 YZ250FX. We have
2
Yamaha 2008 YZ250FX manuals available for free PDF download: Owner's Service Manual
Yamaha 2008 YZ250FX Owner's Service Manual (776 pages)
Brand:
Yamaha
| Category:
Motorcycle
| Size: 25.46 MB
Table of Contents
English
7
Important Notice
4
Table of Contents
7
General Information
8
Chapter 1
9
Description
9
Identification
10
Checking of Connection
11
Special Tools
12
Control Functions
16
Torque-Check Points
19
Cleaning and Storage
20
Specifications
21
Chapter 5 Chassis
22
Maintenance Specifications
23
Chapter 2 Specifications
25
Chapter 3
27
Engine
27
Chassis
28
Electrical
29
Tightening Torques
30
Lubrication Diagrams
36
Cable Routing Diagram
38
Regular Inspection and Adjustments
45
Maintenance Intervals
46
Inspection and Maintenance
49
Engine
50
Checking Radiator Cap/Opening Pressure
50
Chassis
58
Electrical
67
Seat, Fuel Tank and Side Covers
68
Exhaust Pipe and Silencer
70
Chapter 4
72
Radiator
72
Carburetor
74
Camshafts
81
Chapter 7
86
Cylinder Head
86
Valves and Valve Springs
88
Cylinder and Piston
92
Clutch
96
Oil Filter Element and Water Pump
101
Balancer
105
Oil Pump
107
Kick Shaft and Shift Shaft
111
CDI Magneto
116
Engine Removal
118
Crankcase and Crankshaft
122
Cam and Shift Fork
128
Front Wheel and Rear Wheel
131
Front Brake and Rear Brake
136
Front Fork
146
Handlebar
154
Steering
158
Swingarm
162
Absorber
167
Rear Shock Absorber
168
Components and Wiring Diagram
172
Chapter 6
173
Ignition System
173
Throttle Position Sensor System
176
Tuning
179
Carburetor Setting
179
Adjusting Main Jet
179
Adjusting Jet Needle Groove Position
180
Adjusting Pilot Screw/Jet
180
Français
193
Caracteristiques
194
Identification de la Moto
196
Fonctions des Commandes
202
Mise en Marche Et Rodage
203
Points de Verification des Couples de Serrage
205
Diagrammes de Lubrification
222
Renseignements Generaux
194
Controles Et Reglages Periodiques
231
Moteur
236
Châssis
244
Partie Electrique
254
Arbres a Cames
269
Soupapes Et Ressorts de Soupapes
277
Cylindre Et Piston
282
Pompe a Huile
299
Arbre de Kick Et Axe de Selecteur
304
Depose du Moteur
311
Carter Moteur Et Vilebrequin
315
Roue Avant Et Roue Arriere
324
Frein Avant Et Frein Arriere
329
Composants Electriques Et Schema de Cablage
365
Mise Au Point
372
Deutsch
389
Allgemeine Angaben
390
Regelmässige Wartungs- und Einstellarbeiten
390
Bedienungselemente und Deren Funktion
398
Starten und Einfahren
398
Anzugsdrehmomente Kontrollieren
401
Pflege und Lagerung
402
Technische Daten
390
Motor
432
Fahrwerk
440
Elektrische Anlage
450
Ventile und Ventilfedern
473
Zylinder und Kolben
478
Kickhebelwelle und Schaltwelle
498
Motor Demontieren
505
Elektrische Bauteile und Schaltplan
559
Abstimmung
566
Numero DI Serie del Mezzo
586
Informazioni Importanti
586
Punti DI Controllo Serraggio
595
Dati Tecnici Generali
597
Schema Percorso Dei Cavi
615
Intervalli DI Manutenzione
621
Impianto Elettrico
645
Tubo DI Scarico E Silenziatore
648
Alberi a Camme
662
Valvole E Molle Valvole
667
Cilindro E Pistone
673
Albero Pedale E Albero del Cambio
694
Magnete CDI
699
Rimozione del Motore
701
Carter E Albero Motore
705
Ruota Anteriore E Posteriore
716
Freno Anteriore E Posteriore
719
Ammortizzatore Posteriore
750
Sistema Sensore Posizione Farfalla
759
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Yamaha 2008 YZ250FX Owner's Service Manual (193 pages)
Brand:
Yamaha
| Category:
Motorcycle
| Size: 7.37 MB
Table of Contents
Important Notice
6
How to Read Descriptions
8
Illustrated Symbols
8
Table of Contents
9
Contents
10
General Information
10
General Information
11
Description
11
Machine Identification
12
Important Information
12
Vehicle Identification Number
12
Included Parts
12
All Replacement Parts
13
Gaskets, Oil Seals and O-Rings
13
Lock Washers/Plates and Cotter Pins
13
Checking of Connection
13
Special Tools
14
Clutch Lever
18
Engine Stop Switch
18
Starting and Break-In
18
Control Functions
18
Starting a Cold Engine
19
Starting a Warm Engine
19
Restarting an Engine after a Fall
19
The Engine Fails to Start
19
Break-In Procedures
20
Torque-Check Points
21
Cleaning and Storage
22
General Specifications
23
Chassis
24
Maintenance Specifications
25
Tightening Torques
32
General Torque Specifications
37
Definition of Units
37
Lubrication Diagrams
38
Cable Routing Diagram
40
Maintenance Intervals
47
Regular Inspection and Adjustments
47
Maintenance Intervals
48
General Inspection and Maintenance
51
Chassis
51
Pre-Operation Inspection and Maintenance
51
Checking the Coolant Level
52
Changing the Coolant
52
Checking Radiator Cap/Opening Pressure
52
Engine
52
Lubricating the Throttle
53
Checking the Cooling System
53
Adjusting the Throttle Cable Free Play
53
Adjusting the Clutch Cable Free Play
53
Cleaning the Air Filter Element
54
Adjusting the Hot Starter Lever Free Play
54
Checking the Engine Oil Level
54
Changing the Engine Oil
55
Adjusting the Engine Idling Speed
56
Adjusting the Pilot Screw
56
Checking the Oil Pressure
56
Adjusting the Valve Clearance
57
Intake
59
Exhaust
59
Bleeding the Hydraulic Brake System
60
Adjusting the Front Brake
60
Adjusting the Rear Brake
60
Chassis
60
Checking and Replacing the Front Brake Pads
61
Checking and Replacing the Rear Brake Pads
61
Checking the Rear Brake Pad Insulator
62
Checking the Brake Fluid Level
62
Checking the Sprocket
62
Checking the Drive Chain
63
Adjusting the Drive Chain Slack
63
Adjusting the Front Fork Rebound Damping Force
64
Cleaning the Front Fork Oil Seal and Dust Seal
64
Relieving the Front Fork Internal Pressure
64
Checking the Front Fork
64
Adjusting the Rear Shock Absorber Spring Preload
65
Adjusting the Rear Shock Absorber Low Compression Damping Force
65
Adjusting the Rear Shock Absorber High Compression Damping Force
66
Checking the Tire Pressure Checking and Tightening the Spokes
66
Checking the Wheels Checking and Adjusting the Steering Head
66
Lubrication
68
Checking the Ignition Timing
69
Checking the Spark Plug
69
Electrical
69
Seat, Fuel Tank and Side Covers
70
Removing the Seat, Fuel Tank and Side Covers
70
Removing the Side Cover
71
Removing the Number Plate
71
Installing the Air Scoop
71
Removing the Exhaust Pipe and Silencer
72
Installing the Silencer and Exhaust Pipe
73
Changing the Silencer Fiber
73
Checking the Silencer and Exhaust Pipe
73
Removing the Radiator
74
Handling Note
75
Checking the Radiator
75
Installing the Radiator
75
Removing the Carburetor
76
Disassembling the Carburetor
77
Checking the Throttle Valve
79
Checking the Carburetor
79
Checking the Needle Valve
79
Removing the Pilot Screw
79
Checking the Float
80
Checking the Starter Plunger
80
Checking the Accelerator Pump
80
Assembling the Carburetor
80
Adjusting the Accelerator Pump Timing
82
Installing the Carburetor
82
Camshafts
83
Removing the Cylinder Head Cover
83
Removing the Camshafts
84
Checking the Camshaft
85
Checking the Camshaft Sprocket
86
Checking the Decompression System
86
Checking the Timing Chain Tensioner
86
Installing the Camshaft
86
Removing the Cylinder Head
88
Checking the Cylinder Head
89
Installing the Cylinder Head
89
Removing the Valves and Valve Springs
90
Removing the Valve Lifter and Valve Cotter
91
Checking the Valve
91
Checking the Valve Springs
92
Checking the Valve Lifters
93
Installing the Valves
93
Removing the Cylinder and Piston
94
Checking the Cylinder and Piston
95
Checking the Piston Ring
95
Removing the Piston and Piston Ring
95
Checking the Piston Pin
96
Installing the Piston Ring and Piston
96
Installing the Cylinder
96
Removing the Clutch
98
Removing the Clutch Boss
100
Checking the Clutch Housing and Boss
100
Checking the Primary Driven Gear
100
Checking the Clutch Springs
100
Installing the Clutch
101
Removing the Oil Filter Element and Water Pump
103
Removing the Impeller Shaft
105
Removing the Oil Seal
105
Checking the Oil Delivery Pipe
105
Checking the Impeller Shaft
105
Installing the Oil Filter Element
106
Installing the Water Pump Housing
106
Installing the Kickstarter Crank
106
Installing the Right Crankcase Cover
106
Removing the Balancer
107
Checking the Primary Drive Gear, Balancer Shaft Drive Gear and Balancer Shaft Driven Gear
108
Checking the Balancer Shaft
108
Installing the Balancer
108
Removing the Oil Pump
109
Removing the Oil Tank
111
Installing the Oil Pump
112
Checking the Oil Pump
112
Removing the Kick Shaft and Shift Shaft
113
Kick Shaft and Shift Shaft
113
Removing the Kick Shaft Assembly
115
Removing the Shift Guide and Shift Lever Assembly
115
Removing the Segment
115
Installing the Segment
115
Kick Shaft and Shift Shaft
115
Installing the Kick Shaft Assembly
116
Installing the Shift Shaft
116
Installing the Shift Guide and Shift Lever Assembly
116
Installing the Kick Idle Gear
117
Removing the CDI Magneto
118
Removing the Rotor
119
Checking the CDI Magneto
119
Checking the Woodruff Key
119
Installing the CDI Magneto
119
Engine Removal
120
Removing the Engine
120
Removing the Drive Sprocket
122
Installing the Engine
122
Installing the Brake Pedal
122
Installing the Neutral Switch
123
Removing the Crankshaft
124
Crankcase and Crankshaft
124
Removing the Crankcase Bearing
126
Checking the Crankshaft
127
Checking the Timing Chain and Timing Chain Guide
127
Disassembling the Crankcase
127
Checking the Crankcase
127
Checking the Oil Strainer
128
Checking the Oil Delivery Pipe 2
128
Installing the Crankcase Bearing
128
Installing the Crankshaft
128
Removing the Transmission, Shift Cam and Shift Fork
130
Removing the Transmission
131
Checking the Gears
131
Checking the Bearing
131
Installing the Transmission
131
Removing the Front Wheel
133
Front Wheel and Rear Wheel
133
Removing the Rear Wheel
134
Installing the Front Wheel
135
Front Wheel and Rear Wheel
135
Checking the Brake Disc
135
Checking the Wheel
135
Removing the Wheel Bearing
135
Installing the Rear Wheel
136
Removing the Front Brake
138
Front Brake and Rear Brake
138
Removing the Rear Brake
139
Disassembling the Brake Caliper
140
Disassembling the Brake Master Cylinder
141
Checking the Brake Master Cylinder
142
Removing the Brake Caliper Piston
142
Removing the Brake Caliper Piston Seal Kit
142
Draining the Brake Fluid
142
Checking the Brake Caliper
143
Checking the Brake Hose
143
Installing the Brake Caliper Piston
143
Installing the Front Brake Caliper
143
Installing the Rear Brake Caliper
144
Installing the Brake Master Cylinder Kit
144
Installing the Front Brake Master Cylinder
144
Installing the Rear Brake Master Cylinder
145
Installing the Front Brake Hose
145
Installing the Rear Brake Hose
146
Filling the Brake Fluid
146
Removing the Front Fork
148
Disassembling the Front Fork
149
Removing the Damper Assembly
150
Removing the Adjuster
150
Removing the Inner Tube
150
Removing the Base Valve
150
Checking the Base Valve
151
Checking the Collar
151
Checking the Fork Spring
151
Checking the Inner Tube
151
Installing the Front Fork
154
Removing the Handlebar
156
Installing the Handlebar
157
Checking the Handlebar
157
Removing the Grip
157
Removing the Brake Master Cylinder
157
Removing the Steering
160
Removing the Steering Ring Nut
162
Removing the Lower Bearing
162
Removing the Bearing Race
162
Installing the Lower Bracket
162
Removing the Swingarm
164
Disassembling the Swingarm
165
Checking the Relay Arm
166
Removing the Cap
166
Checking the Swingarm
166
Removing the Bearing
166
Installing the Swingarm
167
Removing the Rear Shock Absorber
169
Notes on Disposal
171
Checking the Rear Shock Absorber
171
Installing the Bearing
171
Installing the Rear Shock Absorber
172
Installing the Spring (Rear Shock Absorber)
172
Electrical Components and Wiring Diagram
174
Ignition System Inspection Steps
175
Spark Gap Test
176
Checking the Couplers, Leads and Ignition Coil Connection
176
Checking the Ignition Coil
176
Checking the Engine Stop Switch
176
Checking the Neutral Switch
177
Checking the CDI Unit
177
Throttle Position Sensor System
178
Checking the Throttle Position Sensor Coil
179
Changing and Adjusting the Throttle Position Sensor
179
Checking the Couplers and Leads Connection
179
Checking the Throttle Position Sensor Input Voltage
180
Tuning Engine
181
Carburetor Setting
181
Atmospheric Conditions and Carburetor Settings
181
Adjusting the Main Jet
181
Relationship with Throttle Opening
182
Adjusting the Pilot Jet
182
Adjusting the Jet Needle
182
Adjusting the Jet Needle Groove Position
182
Carburetor Setting Parts
183
Specifications of Jet Needle
184
Examples of Carburetor Setting Depending on Symptom
184
Selection of the Secondary Reduction Ratio (Sprocket)
186
Drive and Rear Wheel Sprockets Setting Parts
186
Tire Pressure
186
Front Fork Setting
186
Setting of Spring after Replacement
187
Front Fork Setting Parts
187
Rear Suspension Setting
187
Choosing Set Length
187
Rear Shock Absorber Setting Parts
188
Suspension Setting (Front Fork)
189
Suspension Setting (Rear Shock Absorber)
190
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