Yamaha YZF-R125, Service Manual

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ENGINE SPECIFICATIONS
2-7
Runout limit C 0.030 mm (0.0012 in)
Big end side clearance D 0.110–0.410 mm (0.0043–0.0161 in)
Big end radial clearance E 0.004–0.014 mm (0.0002–0.0006 in)
Balancer
Balancer drive method Gear
Clutch
Clutch type Wet, multiple-disc
Clutch release method Inner push, cam push
Clutch lever free play 10.0–15.0 mm (0.39–0.59 in)
Friction plate 1 thickness 2.90–3.10 mm (0.114–0.122 in)
Wear limit 2.80 mm (0.1102 in)
Plate quantity 1 pc
Friction plate 3 thickness 2.90–3.10 mm (0.114–0.122 in)
Wear limit 2.80 mm (0.1102 in)
Plate quantity 3 pcs
Friction plate 2 thickness 2.90–3.10 mm (0.114–0.122 in)
Wear limit 2.80 mm (0.1102 in)
Plate quantity 1 pc
Clutch plate thickness 1.45–1.75 mm (0.057–0.069 in)
Plate quantity 4 pcs
Warpage limit 0.20 mm (0.0079 in)
Clutch spring free length 38.71 mm (1.52 in)
Minimum length 36.77 mm (1.45 in)
Spring quantity 4 pcs
Push rod bending limit 0.500 mm (0.0197 in)
Transmission
Transmission type Constant mesh 6-speed
Primary reduction system Helical gear
Primary reduction ratio 73/24 (3.042)
Secondary reduction system Chain drive
Secondary reduction ratio 48/14 (3.429)
Operation Left foot operation
Gear ratio
1st 34/12 (2.833)
2nd 30/16 (1.875)
3rd 30/22 (1.364)
4th 24/21 (1.143)
5th 22/23 (0.957)
6th 21/25 (0.840)
Main axle runout limit 0.08 mm (0.0032 in)
Drive axle runout limit 0.08 mm (0.0032 in)
D
A
E
C C
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