Sym GTS 250 Service Manual page 95

7. Cylinder / Piston
Coat some engine oil to inside of cylinder, piston
and piston rings.
Care to be taken when installing piston into
cylinder. Press piston rings in one by one as
installation.
Caution
Do not push piston into cylinder forcefully
because piston and piston rings will be
damaged.¡ C
Install coolant hose onto cylinder.
Install cylinder head (refer to Chapter 6).
7-8
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Coolant hose