Pocket bike engine (fixing it)?

you don't need the electric start but you probably need the key switch for the ignition. so don't remove that unless you can rewire it. since it is a small engine you need the primer on so you can start the engine, with out it you'll pull you arm out trying to start it. I would say if you can find an old weed wacker try to snag the on off that. it's hard to tell, with the engine but my guess is that is is a two stroke so you will need a gas and oil mix. I believe you can take the starter out but if it's not in the way then don't worry about it.