I have a Murray riding mower model 42544x8b.I need the troubleshooting procedure for a no crank condition resulting from a faulty safety interlock.I replced the PTO switch.I still have a no crank condition.If I connect a jumper wire from the new battery to the starter the engine cranks and produces spark.How do you jump the other 2 switches. The seat switch is 2 prong while the clutch switch is 4 prong?Thanks

Paul proatty@comcast.net, June 2007

Replace the 15 amp fuse.

Paul, June 2007

are you getting voltage at the small terminal at the starter solenoid when you try to start it ....if so it might be a bad starter solenoid

bg, June 2007