Hi i had the same problem with my new hyper pro uk engine, it is worth persisting, and always make sure after a failed turn on the starter box to put the flywheel back to bdc(bottom dead cetre) or you will do as described in earlier posts and it will eat the starter wheel, i had to undo the plug a little then as it stated to turn over when it begins to fire do up the plug with the glow stater to give it more compression, and then take out the glow stater and finish by tightening the plg properly with the plug spanner, they are tight but persist it is worth it when it fires up, it will get easier to start with the box after a few heat cycles.

hope this helps

Rod