17
DOLMAR GmbH
1
1
4
5
3
2
10 Cylinder / piston / decompression valve
10-01 Dismantling the cylinder
To dismantle the cylinder, unscrew the 4
screws (1) from the cylinder foot.
Pull cylinder off crankcase and piston.
10-01 Dismantling the cylinder - piston
Remove piston pin securing ring (2) from the
annular slot in the piston using pointed pliers.
Push piston pin out.
Note: During assembly, make sure the secur-
ing ring clicks completely into the groove.
10-01 Mounting the cylinder - piston
When mounting piston, the arrow on top of
the piston has to point in direction of muffler.
Note: Before assembling the piston ensure
that the cylinder base gasket (3) is fitted
correctly.
13-02 Testing the decompression valve
Unscrew valve and check valve seating (5)
and the hole in the cylinder for dirt. Replace
valve if dirty. Clean hole carefully.
10-01 Mounting the cylinder
After positioning the cylinder, tighten fixing
screw with a force of 14 Nm (see page 22).
10-01 Mounting the cylinder
Position the fork (4) of the piston ring tightening
device (parts no. 944.601.001) onto the crank-
case. Press the piston ring together using the
ring clamp. When positioning the cylinder, push
the ring clamp away downwards.
Summary of Contents for PC-7312 HappyStart
Page 23: ...23 DOLMAR GmbH Notice...