46 - English
17.3 Assembly
Fig. 7
1. Lubricate the needle bearing (A) and t it in the
connecting rod. See gure 7.
2. Place the piston with the arrow facing the exhaust
port. Slide the wrist pin in (D) and t the circlips (C).
See gure 7.
3. Fit the intake manifold on the cylinder before tting
the cylinder to the crankcase. Apply grease to the
sealing surface. Tighten the 4 screws. The square
nuts (B) can be replaced if damaged. See gure 8.
4. Fit the decompression valve (B) if it has been
removed. See gure 10.
5. Fit the gasket on the cylinder base. Press it up so
that it fastens on the sleeve of the cylinder.
6. Oil the piston ring and sides of the piston with two
stroke oil.
7. Compress the piston ring, either by hand or with tool
Piston assembly kit. See gure 9. Carefully t the
cylinder.
8. Align the cylinder base gasket with the four screws
(A) and tighten them alternately and then fully. See
gure 10.
9. Assemble the vibration damping unit (C) on the
cylinder. See gure 12.
10. Carry out a pressure test as shown in chapter
Troubleshooting.
Fig. 8
CAUTION! Exercise care so that dirt and
foreign particles do not get into the
crankcase.
Fig. 9
A
B
C
Fig. 10
Piston and cylinder
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