Husqvarna 2013 TC 250R Workshop Manual page 190

ENGINE REASSEMBLY
TE 250R - 310R 2013 I.E. / TE 310R 2013 I.E. USA
TC 250R 2013 - TC 250R 2013 I.E. USA
TXC 250R - 310R 2013 I.E. USA
Lubricate the cylinder liner (7) with engine oil and slide it over the piston rings.
Make sure to collect the timing chain (8).
Position the slider (9).
Workshop Manual Ed. 07-2012
H.42