So I picked up a nice little 5200 the other day with a Kohler K181 pull start. Cleaned the tank and carb and got it running only to find out the on/off key switch didn't work and I had to pull the wire off the plug. No shocks, thank goodness. Question, is that key switch just going to ground when its "on" or something? I want to replace it so I can get it running right. The switch looks to only have one wire going to it and just one blade on the back of the switch. Any ideas?