APRILIA ETX 150 Service Station Manual page 96

Engine
•
Remove the cap (2)
•
Remove the springs (3)
•
Remove the exhaust valve (4)
NOTE
CARRY OUT THE PREVIOUSLY DESCRIBED PROCEDURE
ALSO FOR THE REMOVAL OF THE INTAKE VALVE
Checking the overhead camshaft
CAMSHAFT
Characteristic
Standard diameter
25 +/- 0.03 mm (0.98 +/- 0.0012 in)
Intake cam height
6.075 mm (0.239 in)
Exhaust cam height
5.704 mm (0.224 in)
CAMSHAFT GEAR CHECK
ENG - 96
ETX - STX 150