Standard Valve Length - PIAGGIO MP3 400 i.e. Service Manual

MP3 400 i.e.
Specification
Standard clearance:
Admissible limit:
Specification
Standard clearance:
Admissible limit:
Specification
Outlet:
- Check that there are no signs of wear on the surface of contact with the articulated register terminal.
- If the checks above give no failures, you can use
the same valves. To obtain better sealing perform-
ance, grind the valve seats. Grind the valves gently
with a fine-grained lapping compound. During the
grinding, keep the cylinder head with the valve ax-
es in a horizontal position. This will prevent the
lapping compound residues from penetrating be-
tween the valve stem and the guide (see figure).
CAUTION
OUTLET

STANDARD VALVE LENGTH

Inlet:
INLET
Desc./Quantity
0.013 - 0.04 mm
Desc./Quantity
0.025 ÷ 0.052 mm
Desc./Quantity
95.0 ± 0.3 mm
94.2 ± 0.3 mm
Engine
0.08 mm
0.09 mm
ENG - 65