Yamaha YZFR1W 2007, Service Manual

Page: 34 / 429

ENGINE SPECIFICATIONS
2-6
Oil ring
Dimensions (B
×
T) 1.50
×
2.25 mm (0.06
×
0.09 in)
End gap (installed) 0.10–0.40 mm (0.0039–0.0157 in)
Connecting rod
Oil clearance (using plastigauge®) 0.034–0.058 mm (0.0013–0.0023 in)
Bearing color code 1.Blue 2.Black 3.Brown 4.Green
Crankshaft
Width A 55.20–56.60 mm (2.173–2.228 in)
Width B 298.75–300.65 mm (11.76–11.84 in)
Runout limit C 0.030 mm (0.0012 in)
Big end side clearance D 0.160–0.262 mm (0.0063–0.0103 in)
Journal oil clearance (using plastigauge®) 0.014–0.037 mm (0.0006–0.0015 in)
Bearing color code 0.White 1.Blue 2.Black 3.Brown 4.Green
Clutch
Clutch type Wet, multiple-disc
Clutch release method Outer pull, rack and pinion pull
Clutch lever free play 10.0–15.0 mm (0.39–0.59 in)
Friction plate thickness 2.90–3.10 mm (0.114–0.122 in)
Wear limit 2.80 mm (0.1102 in)
Plate quantity 9 pcs
Clutch plate thickness 1.90–2.10 mm (0.075–0.083 in)
Plate quantity 8 pcs
Warpage limit 0.10 mm (0.0039 in)
Clutch spring free length 43.80 mm (1.72 in)
Spring quantity 6 pcs
Transmission
Transmission type Constant mesh 6-speed
Primary reduction system Spur gear
Primary reduction ratio 65/43 (1.512)
Secondary reduction system Chain drive
Secondary reduction ratio 45/17 (2.647)
Operation Left foot operation
Gear ratio
1st 38/15 (2.533)
2nd 33/16 (2.063)
3rd 37/21 (1.762)
4th 35/23 (1.522)
5th 30/22 (1.364)
6th 33/26 (1.269)
Main axle runout limit 0.08 mm (0.0032 in)
Drive axle runout limit 0.08 mm (0.0032 in)