Petrol strimmer, saw, trimmer

Titan petrol multi strimmer, saw,hedge cutter my son bought and used the strimmer 3 or 4 times then the motor would not start so continued using his electric one this was put aside to take back under warranty but was left in the shed and forgotten so selling as spares the saw and hedge cutter have never been used the motor turns but appears not to have a spark ?.