Be sure to turn the switch back to the “on” position after you get it started or you can do damage to the engine.
Under the seat is 2 hooks, one on each side of the bike. All you have to do is put the metal “D” loop from your helmet on the hook and then close the seat. The helmet is locked to the bike. As far as the rest of your gear goes you will get used to always having a backpack with you. In some cases you can lock your jacket and pants to the bike using a chain and a lock(the kind you used to lock up your ten speed/mountain bike back in the day) running through the sleeves and/or legs and locking that to the bike. Great to see you are gearing up!!! ATGATT !! ( =All The Gear All The Time) We have a lot to worry about out there!
Great Bike!