Maintenance Specifications - Yamaha YZ125N1 Service Manual

EC212000

MAINTENANCE SPECIFICATIONS

EC212100
ENGINE
Item
Cylinder head:
Combustion chamber capacity
Warp limit
Cylinder:
Bore size
Taper limit
Out of round limit
Piston:
Piston size/
Measuring point*
Piston clearance
Piston offset
Piston pin:
Piston pin outside diameter
Piston ring:
Sectional sketch
End gap (installed)
Side clearance (installed)
Crankshaft:
Crank width "A"
Runout limit "C"
Connecting rod big end
side clearance "D"
Small end free play "F"
Clutch:
Friction plate thickness
Quantity
Clutch plate thickness
Quantity
Warp limit
Clutch spring free length
Quantity
Clutch housing thrust clearance
Clutch housing radial clearance
Clutch release method
MAINTENANCE SPECIFICATIONS
10.2 cm 3
(0.359 Imp oz, 0.345 US oz)
...
54.000~54.014 mm
(2.1260~2.1265 in)
...
...
53.957~53.972 mm
(2.1243~2.1249 in)
17.5 mm (0.69 in)
0.040~0.045 mm
(0.0016~0.0018 in)
1.0 mm (0.039 in)/EX-side
14.995~15.000 mm
(0.5904~0.5906 in)
Plain
B=1.0 mm (0.039 in)
T=2.15 mm (0.085 in)
0.5~0.7 mm (0.020~0.028 in)
0.035~0.080 mm
(0.0014~0.0031 in)
55.90~55.95 mm
(2.201~2.203 in)
0.03 mm (0.0012 in)
0.20~0.70 mm (0.008~0.028 in)
0.8~1.0 mm (0.031~0.039 in)
2.9~3.1 mm (0.114~0.122 in)
8
1.5~1.7 mm (0.059~0.067 in)
7
...
40.1 mm (1.579 in)
5
0.20~0.25 mm (0.008~0.010 in)
0.015~0.049 mm
(0.0006~0.0019 in)
Outer pull, rack and pinion pull
2-3
Standard
SPEC
Limit
...
0.03 mm (0.0012 in)
54.1 mm (2.130 in)
0.05 mm (0.0020 in)
0.01 mm (0.0004 in)
...
...
0.1 mm (0.004 in)
...
14.975 mm
(0.5896 in)
...
...
...
1.2 mm (0.047 in)
0.1 mm (0.004 in)
...
0.05 mm (0.0020 in)
...
2.0 mm (0.08 in)
2.8 mm (0.110 in)
...
...
...
0.2 mm (0.008 in)
38.1 mm (1.500 in)
...
...
...
...