ENGINE SPECIFICATIONS (YP125R)
2-7
Limit
0.60 mm (0.0236 in)
Ring side clearance
0.030–0.070 mm (0.0012–0.0028 in)
Limit
0.120 mm (0.0047 in)
Oil ring
Dimensions (B
×
T)
1.50
×
1.95 mm (0.06
×
0.08 in)
End gap (installed)
0.20–0.70 mm (0.0079–0.0276 in)
Ring side clearance
0.060–0.150 mm (0.0024–0.0059 in)
Crankshaft
Width A
45.95–46.00 mm (1.809–1.811 in)
Runout limit C
0.030 mm (0.0012 in)
Big end side clearance D
0.150–0.450 mm (0.0059–0.0177 in)
Big end radial clearance E
0.004–0.014 mm (0.0002–0.0006 in)
Clutch
Clutch type
Dry, centrifugal automatic
Automatic centrifugal clutch
Clutch shoe thickness
2.0 mm (0.08 in)
Limit
1.0 mm (0.04 in)
Clutch shoe spring free length
33.0 mm (1.30 in)
Clutch housing inside diameter
135.0 mm (5.31 in)
Limit
135.5 mm (5.33 in)
Compression spring free length
112.0 mm (4.41 in)
Limit
106.4 mm (4.19 in)
Weight outside diameter
20.0 mm (0.79 in)
Limit
19.5 mm (0.77 in)
Clutch-in revolution
3500–4100 r/min
Clutch-stall revolution
5300–6300 r/min
V-belt
V-belt width
22.0 mm (0.87 in)
Limit
19.8 mm (0.78 in)
Transmission
Transmission type
V-belt automatic
Primary reduction system
Helical gear
Primary reduction ratio
41/14 (2.929)
Secondary reduction system
Helical gear
B
T
D
A
E
C
C
Summary of Contents for YP125R
Page 1: ...SERVICE MANUAL 2010 37P F8197 E0 YP125R YP250R...
Page 6: ......
Page 8: ......
Page 28: ...SPECIAL TOOLS 1 19...
Page 30: ...COOLING SYSTEM DIAGRAMS YP250R 2 73 CABLE ROUTING YP250R 2 75...
Page 31: ......
Page 55: ...LUBRICATION POINTS AND LUBRICANT TYPES YP125R 2 24...
Page 62: ...CABLE ROUTING YP125R 2 31 Front fork front view A 1 1 1 1 2 2 2 3 4 5 6 7...
Page 66: ...CABLE ROUTING YP125R 2 35 Engine right side view A 7 3 2 2 2 1 3 4 5 6 7...
Page 70: ...CABLE ROUTING YP125R 2 39 Engine left side view 2 1 3 4 A 3...
Page 72: ...CABLE ROUTING YP125R 2 41 Handlebar top view A 1 2 3 4 4 5 6 7 8 9 10 11 12 13 14 15 16 17...
Page 76: ...CABLE ROUTING YP125R 2 45 Tail brake light top view 2 1 3 4 B A 1 5 6...
Page 103: ...LUBRICATION POINTS AND LUBRICANT TYPES YP250R 2 72...
Page 108: ...CABLE ROUTING YP250R 2 77 Front fork front view 1 1 2 3 4 5 6 7 1 2 A 1 2...
Page 112: ...CABLE ROUTING YP250R 2 81 Engine right side view A 7 3 2 2 2 1 3 4 5 6 7 8 B...
Page 116: ...CABLE ROUTING YP250R 2 85 Engine left side view 2 1 3 4 5 6 B A 3 7...
Page 118: ...CABLE ROUTING YP250R 2 87 Handlebar top view A 1 2 3 4 4 5 6 7 8 8 9 10 11 12 13 14 15 16 17...
Page 122: ...CABLE ROUTING YP250R 2 91 Tail brake light top view 2 1 3 4 B A 1 5 6 8 7...
Page 124: ...CABLE ROUTING YP250R 2 93...
Page 127: ......
Page 172: ...ELECTRICAL SYSTEM 3 45...
Page 175: ......
Page 240: ...REAR SHOCK ABSORBER ASSEMBLIES AND SWINGARM 4 65...
Page 245: ......
Page 305: ...CRANKSHAFT YP125R 5 60 a 1...
Page 366: ...CRANKSHAFT YP250R 5 121...
Page 394: ...THROTTLE BODY 7 11...
Page 397: ......
Page 411: ...CHARGING SYSTEM 8 14...
Page 423: ...SIGNALING SYSTEM 8 26...
Page 427: ...COOLING SYSTEM 8 30...
Page 453: ...FUEL INJECTION SYSTEM 8 56...
Page 457: ...FUEL PUMP SYSTEM 8 60...
Page 466: ...IMMOBILIZER SYSTEM 8 69 a Light on b Light off...
Page 467: ...IMMOBILIZER SYSTEM 8 70...
Page 495: ......
Page 496: ...YAMAHA MOTOR ESPA A S A...