i am havinga problem with my 2005 troy bilt, bronco, riding mower. for the past 6 months i have had trouble getting the tractor to start. I get a lot of clicking but it will not catch. I have changed the battery 2 times and replaced the starter. also i changed the spark plug.still no luck. At times it has finnallycome around in about 5 minutes, but other times i've had to jump start it. I'm thinking maybe it,s the key ignition. your thoughts please----thanks

bob connelly, March 2011

You can get a clicking sound if you either have bad earths or connections on the main leads - even with a new battery. Corrosion builds up on the cables and then you don't get full power. With a weak battery you can also damage the solenoid so even with a new battery solenoid will only click.
Check all leads are clean and tight on connections to both battery and earth to chassis.
If that all checks out okay change solenoid.

epark mowers, April 2011