4 - ENGINE
110
VALVE SPRINGS (a)
Inlet, free length: 33,24 mm
Exhaust, free length: 33,24 mm
Inlet, working length (valve closed): 26 mm
Exhaust, working length (valve closed): 26 mm
Inlet, work load: 101,87-116,13 N (10,19-11,61 Kgf)
Exhaust, work load: 101,87-116,13 N (10,19-11,61 Kgf)
- Spring contact face.
Wear/damage/scratches =>
Renew.
INSPECTING THE CAMSHAFT
1. Check:
- Geometry of the cams (standard values).
CAM SIZE
Inlet “A”: 31,44-31,54 mm
Inlet “B”: 23,95-24,05 mm
Inlet (lifted) “C”: 7,49 mm
Exhaust “A”: 30,81-30,91 mm
Exhaust “B”: 23,95-24,05 mm
Exhaust (lifted) “C”: 6,86 mm
Grooves/scratches/blue colouring =>
Renew.
2. Inspect:
MAXIMUM CAMSHAFT WARP
Inlet: 0,008 mm
Exhaust: 0,008 mm
MAXIMUM CAMSHAFT AXIAL PLAY
Inlet: 0,4 mm
Exhaust: 0,4 mm
Outside that specified =>
Renew
.
B
A
C
Summary of Contents for GPR 125 Racing
Page 1: ...WORKSHOP MANUAL GPR 125 4 stroke ...
Page 169: ...6 COOLING SYSTEM 169 6 1 DIAGRAM OF THE SYSTEM ...
Page 170: ...6 COOLING SYSTEM 170 ...
Page 179: ...7 LUBRICATION SYSTEM 179 7 1 DIAGRAM OF THE SYSTEM ...
Page 180: ...7 LUBRICATION SYSTEM 180 ...
Page 192: ...8 CHASSIS 192 FITTING FRONT SUSPENSION ...
Page 202: ...9 BRAKING SYSTEM 202 9 BRAKING SYSTEM FRONT BRAKE REAR BRAKE 203 211 9 1 9 2 ...
Page 247: ...Rev 0 2009 ...