Wow. That's a lot to take in. Um, i guess i'm getting that's it ok to use choke to shut down the engine as long as i turn the fuel off too... it won't hurt the engine if i do it. I don't know why my kill switch stopped working, just kinda happened one day. I checked all the wires and they are still connected. So, i dunno. Anyway, thanks guys for answering my question...the outboard engine stuff was interesting too.