Yamaha XT250X Service Manual page 26

Crankshaft
Width A
Runout limit C
Big end side clearance D
C
Balancer
Balancer drive method
Clutch
Clutch type
Clutch release method
Clutch lever free play
Friction plate thickness
Wear limit
Plate quantity
Clutch plate thickness
Plate quantity
Warpage limit
Clutch spring free length
Limit
Spring quantity
Clutch housing thrust clearance
Clutch housing radial clearance
Push rod bending limit
Transmission
Transmission type
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Operation
Gear ratio
1st
2nd
3rd
4th
5th
Main axle runout limit
Drive axle runout limit
Main axle assembly width
Shifting mechanism
Shift mechanism type
Shift fork thickness
C
D
A
ENGINE SPECIFICATIONS
69.25–69.30 mm (2.726–2.728 in)
0.030 mm (0.0012 in)
0.350–0.850 mm (0.0138–0.0335 in)
Gear
Wet, multiple-disc
Inner push, cam push
10.0–15.0 mm (0.39–0.59 in)
2.70–2.90 mm (0.106–0.114 in)
2.60 mm (0.1024 in)
6 pcs
1.50–1.70 mm (0.059–0.067 in)
5 pcs
0.20 mm (0.0079 in)
40.10 mm (1.58 in)
38.10 mm (1.50 in)
5 pcs
0.100–0.350 mm (0.0039–0.0138 in)
0.010–0.044 mm (0.0004–0.0017 in)
0.500 mm (0.0197 in)
Constant mesh 5-speed
Spur gear
74/24 (3.083)
Chain drive
48/15 (3.200)
Left foot operation
37/13 (2.846)
29/16 (1.812)
29/22 (1.318)
29/28 (1.035)
23/28 (0.821)
0.08 mm (0.0032 in)
0.08 mm (0.0032 in)
102.20–102.40 mm (4.02–4.03 in)
Shift drum and guide bar
4.76–4.89 mm (0.1874–0.1925 in)
2-7