Exposing The Cylinder; Cylinder And Piston - Stihl 064 Service Manual

STIHL 064, 066
4.2

Exposing the Cylinder

1 = Washer
2 = Sleeve
Always check and, if necessary, repair the
fuel system, carburetor, air filter and ignition
system before looking for faults on the
engine.
- Troubleshooting chart - see 2.2.
- Drain the fuel and oil tanks.
- Remove the shroud - see 3.2.
- Unscrew the spark plug.
- Remove the muffler - see 4.1.
- Remove the carburetor - see 11.3.
- Pull the washer off the studs and
remove the sleeve from the manifold.
Note: The previous backing plate
and gasket were replaced by the
washer and sleeve from machine
number X 20 742 548.
Reassemble in the reverse sequence.
4.3

Cylinder and Piston

Removal
4.3.1
Top:
Throughholes to cylinder base
screws
Bottom:
Removing cylinder and pushing
manifold out of tank housing
- Release and unscrew the cylinder
base screws.
- Pull the cylinder off the piston and, at
the same time, push the manifold
through the tank housing opening.
Caution: Do not use pointed or
sharp-edged tools for this job.
- Remove the cylinder gasket.
Top:
Removing cylinder gasket
Bottom:
1 = Hose clamp
2 = Manifold
- Release the hose clamp on the
manifold. Pull the manifold off the intake
port.
- Inspect the cylinder and replace
it if necessary.
Note: If a new cylinder has to be
installed, always fit the matching
piston. Replacement cylinders are
only supplied complete with piston
for this reason. If a new piston is
needed, only fit the special re-
placement piston.
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