I have a scag turf tiger model SMT 61A serial # 7775173 that won't start with the key. I can jump across the the starter solenoid and start it and I can remove the accessory/starter relay and use a jumper wire and either use the key to start it or use the jumper wire on the right pins and bypass the key and start it but when I put the new relay on andtry to start it nothing. The fuel pump comes on but that's all.