Hi hazwaz .It can be done providing you only want it for something like a small child but you could relocate your batterys to behind the bulkhead in the rear and that would enable you to put a nomal seat in but its still a bit cramped. Best thing if you realy want a lightweight is to get a 12 volt general service one its a lot less hassle with the electical spares too as they are the same as the normal 2 1/4 petrol .Hope this helps. Tony
