Ok so I have a Yamaha big bear that will not spark a lick. Ive checked everything I know to check on this thing can cant locate the problem. The only way I can get it to start and run is to jump the two back wires coming off the key switch theres 4 wires on the key switch. If I jump them two it will start and run great but it will not die when I turn the switch off the only way I can kill the motor is to turn the engine stop/run switch off. If it was mine id run the heck out of it that way but its a older friend of mine and I would rather have the key switch operating correctly. I have already replaced the key switch with 2 different switches and it does the same thing. I have also replaced the cdi and still has not changed anything. I would highly appreciate any advise I am at a lost on this thing. thanks