Yamaha 2009 YFM25RY Service Manual page 27

Crankshaft
Width A
Runout limit C
Big end side clearance D
Limit
Big end radial clearance E
Balancer
Balancer drive method
Clutch
Friction plate thickness
Limit
Plate quantity
Clutch plate thickness
Plate quantity
Clutch plate warpage limit
Clutch spring free length
Limit
Spring quantity
Clutch release method
Push rod 2 bending limit
Transmission
Main axle runout limit
Drive axle runout limit
Main axle assembly width
Shifting mechanism
Shift mechanism type
Shift fork guide bar bending limit
ENGINE SPECIFICATIONS
69.25–69.30 mm (2.726–2.728 in)
0.03 mm (0.0012 in)
0.350–0.650 mm (0.0138–0.0256 in)
0.50 mm (0.0197 in)
0.010–0.025 mm (0.0004–0.0010 in)
Gear
2.90–3.10 mm (0.114–0.122 in)
2.80 mm (0.110 in)
6 pcs
1.50–1.70 mm (0.059–0.067 in)
5 pcs
0.20 mm (0.0079 in)
47.80 mm (1.88 in)
46.50 mm (1.83 in)
5 pcs
Inner push, cam push
0.10 mm (0.004 in)
0.06 mm (0.0024 in)
0.06 mm (0.0024 in)
102.2–102.4 mm (4.02–4.03 in)
Shift drum and guide bar
0.05 mm (0.002 in)
2-8