Yamaha YZF-R15 Service Manual page 22

Valve opening temperature
Valve full open temperature
Valve lift (full open)
Radiator core
Width
Height
Depth
Water pump
Water pump type
Reduction ratio
Spark plug (s)
Manufacturer/model
Manufacturer/model
Spark plug gap
Cylinder head
Volume
Warpage limit
Camshaft
Drive system
Camshaft lobe dimensions
Intake A
Limit
Intake B
Limit
Exhaust A
Limit
Exhaust B
Limit
Camshaft runout limit 0.03 mm
B
A
2-3
ENGINE SPECIFICATIONS
80.5–83.5 °C
95.0 °C
3.0 mm
198.0 mm
128.0 mm
24.0 mm
Single suction centrifugal pump
½ (0.500)
NGK/CR8E
DENSO/U24ESR-N
0.7–0.8 mm
9.90–10.50 cm³
0.03 mm
Chain drive (left)
25.177 ± 0.05 mm
25.027 mm
30.275 ± 0.05 mm
30.125 mm
25.115 ± 0.05 mm
24.965 mm
30.282 ± 0.05 mm
30.132 mm