I'm sure there's a way to do it, but I've never seen it done. The pedal switch kind of acts like a key switch to get it started. Once the engine is running the starter automatically turns to generator, so it's really the same either way. I bench tested my starter/gen and it worked fine, so you just have to put power and ground to it and it fires right up. You'll have to experiment a bit, but I'm sure it can be done. I have considered doing the same thing but with a starter button. Same idea just no key. Be sure to post pics!