Scooterotica

Got a t5 classic set off few days ago first andsecond gear ok put into third and not engaging just revving . Occaisoinally it will engage sometimes no gears at all ! Checked selector that is changing to every gear fine going away tomorrow for a week but any ideas where to start when I return much appreciated lads. Engine was rebuilt 18 months ago all new seals bearings and genuine cruxiform put in. Thanks in advance.

Push rod that cruciform is fixed too loose?
Or gear selector arm pin loose maybe?

Cheers for that checked pin is ok will look at the other when I back home.

Selector arm pin was indeed out completely I assumed cos it was changing gears it was ok thanks for the advice norrie cheers.