Refitting The Cylinder; Inspecting The Cylinder Head - PIAGGIO Fly 150 4T Workshop Manual

Fly 125 - 150 4T

Refitting the cylinder

- Insert the cylinder base gasket with the thickness
determined above.
- Using the fork support and the piston ring retain-
ing band, refit the cylinder as shown in the figure.
N.B.
BEFORE FITTING THE CYLINDER, CAREFUL-
LY BLOW OUT THE LUBRICATION DUCT AND
OIL THE CYLINDER BARREL.
Specific tooling
020426Y Piston fitting fork
020427Y Piston fitting band

Inspecting the cylinder head

- Using a trued bar check that the cylinder head
surface is not worn or distorted.
- Check that the camshaft and rocking lever pin
bearings show no signs of wear.
- Check that the cylinder head cover surface, the
intake manifold and the exhaust manifold are not
worn.
Characteristic
Maximum admitted unevenness: Head check
0.05 mm
Specification
Standard diameter
Standard diameter
Standard diameter
STANDARD DIAMETER
Desc./Quantity
A Ø 32.5 ÷ 32.525
B Ø 20 ÷ 20.021
C Ø 12 ÷ 12.018
Engine
ENG - 113