PIAGGIO MP3 400 i.e. - Exhaust; Intake Head Fixing Nuts:

- Check that the head lubrication channel is per-
fectly clean. Clean with compressed air jets, if
required.
- Insert the head.
- Lubricate the stud bolts and the 4 fixing stud
bolts.
- Tighten the 4 fixing stud bolts crosswise to the prescribed torque as shown in the figure.
Locking torques (N*m)
Head fixing stud bolts: ***
*** Apply a preliminary torque of 7 Nm in a crossed
sequence.
- Tighten by 90° in a crossed sequence.
- Tighten again by 90° in a crossed sequence.
- Tighten the fastening nuts on the exhaust and on
the intake side to the prescribed torque.
Locking torques (N*m)
Exhaust / intake head fixing nuts: 10 - 12
- Tighten the 3 side screws to the prescribed tor-
que.
Locking torques (N*m)
Head fixing screws 10 - 12
Engine MP3 400 i.e.
ENG - 70