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YP125RA 2014
Yamaha YP125RA 2014 Manuals
Manuals and User Guides for Yamaha YP125RA 2014. We have
1
Yamaha YP125RA 2014 manual available for free PDF download: Service Manual
Yamaha YP125RA 2014 Service Manual (482 pages)
Brand:
Yamaha
| Category:
Scooter
| Size: 16.23 MB
Table of Contents
Table of Contents
7
General Information
9
Identification
10
Vehicle Identification Number
10
Model Label
10
Features
11
Outline of the Fi System
11
Fi System
12
OUTLINE of the ABS (for YP125RA)
13
Abs Component Functions
17
Abs Operation
23
Abs Warning Light and Operation
26
Instrument Functions
27
Important Information
33
Preparation for Removal and Disassembly
33
Replacement Parts
33
Gaskets, Oil Seals and O-Rings
33
Lock Washers/Plates and Cotter Pins
33
Bearings and Oil Seals
34
Circlips
34
Rubber Parts
34
Basic Service Information
35
Quick Fasteners
35
Electrical System
36
Special Tools
45
Specifications
47
General Specifications
48
Engine Specifications
49
Chassis Specifications
55
Electrical Specifications
58
General Tightening Torque Specifications
61
Tightening Torques
61
Engine Tightening Torques
62
Chassis Tightening Torques
65
Engine
69
Lubrication Points and Lubricant Types
69
Chassis
71
Lubrication System Diagrams
72
Cooling System Diagrams
74
Cable Routing
76
Periodic Checks and Adjustments
111
General Maintenance and Lubrication Chart
112
Introduction
112
Periodic Maintenance
112
Periodic Maintenance Chart for the Emission Control System
112
Adjusting the Valve Clearance
115
Checking the Fuel Line
115
Checking the Spark Plug
115
Checking the Throttle Body Joint and Intake Manifold
117
Adjusting the Exhaust Gas Volume
118
Checking the Breather Hose
118
Checking the Exhaust System
118
Replacing the Air Filter Element
119
Checking the Brake Operation
120
Cleaning the V-Belt Case Air Filter Element
120
BLEEDING the HYDRAULIC BRAKE SYSTEM (for YP125R)
121
Checking the Brake Fluid Level
121
BLEEDING the HYDRAULIC BRAKE SYSTEM (ABS) (for YP125RA)
122
Checking the Front Brake Pads
123
CHECKING the REAR BRAKE PADS (for YP125R)
123
Checking the Front Brake Hoses
124
Checking the Rear Brake Hose
124
CHECKING the REAR BRAKE PADS (for YP125RA)
124
Checking the Tires
124
Checking the Wheels
124
Checking and Adjusting the Steering Head
126
Checking the Wheel Bearings
126
Checking the Chassis Fasteners
127
Lubricating the Levers
127
Adjusting the Rear Shock Absorber Assemblies
128
Checking the Centerstand
128
Checking the Front Fork
128
Checking the Rear Suspension
128
Checking the Sidestand
128
Checking the Sidestand Switch
128
Lubricating the Centerstand
128
Lubricating the Sidestand
128
Checking the Engine Oil Level
129
Changing the Engine Oil
130
Checking the Coolant Level
131
Checking the Cooling System
131
Changing the Coolant
132
Changing the Final Transmission Oil
133
Checking and Lubricating the Cables
134
Checking the Brake Light Switches
134
Replacing the V-Belt
134
Checking the Switches, Lights and Signals
135
Checking the Throttle Grip Operation
135
Lubricating the Rear Suspension
135
Adjusting the Headlight Beam
136
Replacing the Headlight Bulb
136
Chassis
137
General Chassis
140
Installing the Center Panels
149
Installing the Storage Box
149
Removing the Center Panels
149
Installing the Rear Upper Cover
150
Removing the Rear Panels
150
Removing the Rear Upper Cover
150
Installing the Rear Panels
151
Installing the Upper Panel and Front Cowling Cover
151
Removing the Front Cowling Cover and Upper Panel
151
Installing the Front Upper Panel
152
Removing the Front Cowling
152
Removing the Front Upper Panel
152
Installing the Front Cowling
153
Removing the Main Switch Cover
153
Installing the Footrest Board
154
Installing the Main Switch Cover
154
Removing the Footrest Board
154
Disposing of a Seat Hinge Damper
155
Handling the Seat Hinge Damper
155
Front Wheel
156
Checking the Front Wheel
159
Disassembling the Front Wheel
159
REMOVING the FRONT WHEEL (for YP125R)
159
REMOVING the FRONT WHEEL (for YP125RA)
159
MAINTENANCE of the FRONT WHEEL SENSOR and SENSOR ROTOR (for YP125RA)
160
Assembling the Front Wheel
161
Adjusting the Front Wheel Static Balance
162
INSTALLING the FRONT WHEEL (FRONT BRAKE DISC) (for YP125R)
163
INSTALLING the FRONT WHEEL (FRONT BRAKE DISCS) (for YP125RA)
164
Rear Wheel
166
Adjusting the Rear Wheel Static Balance
168
Checking the Rear Wheel
168
Installing the Rear Wheel (Rear Brake Disc)
168
MAINTENANCE of the REAR WHEEL SENSOR ROTOR (for YP125RA)
168
REMOVING the REAR WHEEL (DISC) (for YP125R)
168
REMOVING the REAR WHEEL (DISC) (for YP125RA)
168
Checking the Front Brake Disc
176
Front Brake
176
Introduction
176
Replacing the Front Brake Pads
177
Checking the Front Brake Caliper
178
Disassembling the Front Brake Caliper
178
Removing the Front Brake Caliper
178
Assembling the Front Brake Caliper
179
Installing the Front Brake Caliper
179
Assembling the Front Brake Master Cylinder
180
Checking the Front Brake Master Cylinder
180
Removing the Front Brake Master Cylinder
180
Installing the Front Brake Master Cylinder
181
Rear Brake
183
Checking the Rear Brake Disc
192
Introduction
192
REPLACING the REAR BRAKE PADS (for YP125R)
192
REPLACING the REAR BRAKE PADS (for YP125RA)
193
DISASSEMBLING the REAR BRAKE CALIPER (for YP125RA)
194
Removing the Rear Brake Caliper
194
CHECKING the REAR BRAKE CALIPER (for YP125R)
195
CHECKING the REAR BRAKE CALIPER (for YP125RA)
195
Assembling the Rear Brake Caliper
196
INSTALLING the REAR BRAKE CALIPER (for YP125R)
196
INSTALLING the REAR BRAKE CALIPER (for YP125RA)
197
Assembling the Rear Brake Master Cylinder
198
Checking the Rear Brake Master Cylinder
198
Removing the Rear Brake Master Cylinder
198
Installing the Rear Brake Master Cylinder
199
ABS (ANTI-LOCK BRAKE SYSTEM) (for YP125RA)
201
Checking the Hydraulic Unit Assembly
202
Installing the Hydraulic Unit Assembly
202
Removing the Hydraulic Unit Assembly
202
Hydraulic Unit Operation Tests
204
Checking the Abs Warning Light
207
Handlebar
208
Checking the Handlebar
210
Installing the Handlebar
210
Removing the Handlebar
210
Front Fork
213
Disassembling the Front Fork Legs
215
Removing the Front Fork Legs
215
Assembling the Front Fork Legs
216
Checking the Front Fork Legs
216
Installing the Front Fork Legs
218
Steering Head
220
Checking the Steering Head
222
Installing the Steering Head
222
Removing the Lower Bracket
222
Rear Shock Absorber Assemblies and Swingarm
224
(For YP125RA)
226
Checking the Rear Shock Absorber Assembly
226
Checking the Swingarm
226
Maintenance of the Rear Wheel Sensor
226
Removing the Rear Shock Absorber Assemblies
226
Removing the Swingarm
226
Installing the Swingarm
227
Engine
229
Engine Inspection
232
Measuring the Compression Pressure
232
Engine Removal
233
Installing the Engine
236
Cylinder Head
238
Checking the Cylinder Head
240
Removing the Cylinder Head
240
Checking the Camshaft Sprocket
241
Checking the Timing Chain Tensioner
241
Installing the Cylinder Head
242
Camshaft
245
Checking the Camshaft
246
Checking the Decompression System
246
Removing the Camshaft
246
Checking the Rocker Arms and Rocker Arm Shafts
247
Installing the Camshaft and Rocker Arms
248
Valves and Valve Springs
249
Checking the Valves and Valve Guides
250
Removing the Valves
250
Checking the Valve Seats
252
Checking the Valve Springs
253
Installing the Valves
254
Checking the Cylinder and Piston
257
Cylinder and Piston
257
Removing the Piston
257
Checking the Piston Rings
258
Checking the Piston Pin
259
Checking the Timing Chain Guide
259
Installing the Piston and Cylinder
259
V-Belt Automatic Transmission
261
Removing the Primary Sheave
264
Removing the Secondary Sheave
264
Checking the Clutch Housing
265
Checking the Clutch Shoes
265
Checking the V-Belt
265
Disassembling the Secondary Sheave
265
Assembling the Primary Sheave
266
Checking the Primary Sheave
266
Checking the Primary Sheave Sliders
266
Checking the Primary Sheave Weights
266
Checking the Secondary Sheave
266
Assembling the Secondary Sheave
267
Installing the V-Belt
268
Starter Clutch and Generator
270
Checking the Starter Clutch
272
Removing the Generator
272
Removing the Starter Clutch
272
Installing the Generator
273
Installing the Starter Clutch
273
Electric Starter
275
Checking the Starter Motor
277
Oil Pump
279
Assembling the Oil Pump
280
Checking the Oil Pump
280
Installing the Oil Pump
281
Transmission
282
Checking the Transmission
284
Installing the Transmission
284
Removing the Transmission
284
Crankshaft
285
Checking the Crankshaft and Connecting Rod
287
Checking the Timing Chain and Timing Chain Guide
287
Disassembling the Crankcase
287
Removing the Crankshaft Assembly
287
Checking the Bearing and Oil Seal
288
Checking the Crankcase
288
Checking the Oil Pump Drive Gear
288
Checking the Oil Strainers
289
Installing the Crankshaft
289
Assembling the Crankcase
290
Cooling System
293
Checking the Radiator
295
Installing the Radiator
295
Radiator
295
Thermostat
297
Checking the Thermostat
298
Installing the Thermostat Assembly
298
Water Pump
299
Assembling the Water Pump
300
Checking the Water Pump
300
Disassembling the Water Pump
300
Installing the Water Pump
301
Fuel System
303
Fuel Tank
304
Checking the Fuel Pump Body
305
Installing the Fuel Pump
305
Installing the Fuel Tank
305
Removing the Fuel Pump
305
Removing the Fuel Tank
305
Checking the Fuel Pressure
306
Throttle Body
307
Checking the Fuel Injector
309
Checking the Throttle Body
309
Installing the Fuel Hose
309
Installing the Intake Manifold
309
Installing the Throttle Body
309
Removing the Fuel Hose
309
Checking the Isc (Idle Speed Control) Unit
310
Checking the Throttle Position Sensor
310
Electrical System
311
Circuit Diagram
314
Ignition System
314
Troubleshooting
316
CIRCUIT DIAGRAM (for YP125R)
318
Electric Starting System
318
CIRCUIT DIAGRAM (for YP125RA)
320
STARTING CIRCUIT CUT-OFF SYSTEM OPERATION (for YP125R)
322
STARTING CIRCUIT CUT-OFF SYSTEM OPERATION (for YP125RA)
324
Troubleshooting
326
Charging System
328
Circuit Diagram
328
Troubleshooting
330
Circuit Diagram
332
Lighting System
332
Troubleshooting
334
CIRCUIT DIAGRAM (for YP125R)
336
Signaling System
336
CIRCUIT DIAGRAM (for YP125RA)
338
Troubleshooting
340
Circuit Diagram
346
Cooling System
346
Troubleshooting
348
CIRCUIT DIAGRAM (for YP125R)
350
Fuel Injection System
350
CIRCUIT DIAGRAM (for YP125RA)
352
Ecu Self-Diagnostic Function
354
Diagnostic Mode
355
Troubleshooting Method
355
Troubleshooting Details
358
CIRCUIT DIAGRAM (for YP125R)
386
Fuel Pump System
386
CIRCUIT DIAGRAM (for YP125RA)
388
Troubleshooting
390
Circuit Diagram
392
Immobilizer System
392
General Information
394
Part Replacement and Key Code Registration Requirements
394
Self-Diagnosis Fault Code Indication
398
Troubleshooting
398
ABS (ANTI-LOCK BRAKE SYSTEM) (for YP125RA)
402
Circuit Diagram
402
Abs Components Chart
404
Abs Coupler Location Chart
406
Abs Troubleshooting Outline
408
Maintenance of the Abs Ecu
408
Basic Instructions for Troubleshooting
409
Basic Process for Troubleshooting
410
[A-1] Only the Abs Warning Light Fails to Come on
411
[A-2] the Abs Warning Light and All Other Indicator Lights Fail to Come on
411
[A-3] the Abs Warning Light Comes on
411
[A] Checking the Abs Warning Light
411
[B-1] Malfunction Are Currently Detected
412
[B-2] Diagnosis Using the Fault Codes
412
[B-3] Deleting the Fault Codes
438
[C-1] Final Check
438
Electrical Components
440
Checking the Switches
444
Checking the Bulbs and Bulb Sockets
447
Checking the Fuses
448
Checking and Charging the Battery
449
Checking the Relays
452
Checking the Turn Signal/Hazard Relay
453
Checking the Diodes
454
Checking the Ignition Coil
455
Checking the Spark Plug Cap
455
Checking the Crankshaft Position Sensor
456
Checking the Ignition Spark Gap
456
Checking the Lean Angle Sensor
457
Checking the Starter Motor Operation
457
Checking the Fuel Sender
458
Checking the Rectifier/Regulator
458
Checking the Stator Coil
458
Checking the Radiator Fan Motor
459
CHECKING the SPEED SENSOR (for YP125R)
459
Checking the Coolant Temperature Sensor
460
Checking the Throttle Position Sensor
460
Checking the Intake Air Pressure Sensor
461
Checking the Intake Air Temperature Sensor
461
Checking the Air Temperature Sensor
462
Checking the Fuel Injector
462
Checking the Isc (Idle Speed Control) Unit
463
Troubleshooting
465
General Information
466
Incorrect Engine Idling Speed
466
Starting Failure/Hard Starting
466
Troubleshooting
466
Faulty Clutch
467
Overheating
467
Poor Medium-And-High-Speed Performance
467
Faulty Front Fork Legs
468
Faulty Lighting or Signaling System
468
Overcooling
468
Poor Braking Performance
468
Unstable Handling
468
Self-Diagnostic Function and Diagnostic Code Table
471
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