Yamaha YZF-R1(P) 2002 Service Information page 12

Item
Valve springs
Free length
Intake
Exhaust
Installed length (valve closed)
Intake
Exhaust
Compressed spring force
(installed)
Intake
Exhaust
Spring tilt
Intake
Exhaust
Winding direction (top view)
Intake
Exhaust
Cylinders
Cylinder arrangement
Bore stroke
Compression ratio
Bore
Max. taper
Max. out-of-round
7
ENGINE SPECIFICATIONS
Standard
38.9 mm
40.67 mm
34.5 mm
35 mm
82 X 96 N (8.2 X 9.6 kg)
110 X 126 N (11.0 X 12.6 kg)
SSS
SSS
Clockwise
Clockwise
Forward-inclined, parallel 4-cylinder
74 58 mm
11.8 : 1
74.00 X 74.01 mm
SSS
SSS
2-6
SPEC
Limit
37.0 mm
38.6 mm
SSS
SSS
SSS
SSS
2.5_/
1.7 mm
2.5_/
1.8 mm
SSS
SSS
SSS
SSS
SSS
SSS
0.05 mm
0.05 mm