SERVICE STATION MANUAL Vespa LX 125 - 150 4T Euro 3

Engine Vespa LX 125 - 150 4T Euro 3
- Insert the retention plate and tighten the two
screws shown in the figure to the prescribed torque.
Locking torques (N*m)
Locking torque 4 ÷ 6
- Refit the spacer on the cam shaft.
- Rotate the engine so that the piston is at top dead
centre, using the reference marks on the flywheel
and the crankcase.
- While doing so, fit the chain onto the control camshaft
pulley and keep the reference 2V in correspondence
with the reference mark on the head.
- Fit the pulley onto the camshaft.
- Assemble the counterweight with the corresponding
fixing screw and tighten to the specified
torque.
Locking torques (N*m)
Locking torque 7 ÷ 8.5
-Fit the end-stop ring on the automatic valve-lifter
cam and fit the automatic valve-lifter cam to the
cam shaft.
- Fit the automatic valve-lifter return spring.
- During this operation the spring must be loaded
approximately 180°.
N.B.
GREASE THE END STOP RING TO PREVENT
IT COMING OUT AND FALLING INTO THE EN-
GINE.
ENG - 38