On Sunday, May 10, 2015 at 5:24:29 AM UTC-4, Frank Thompson wrote:
doing trouble shooting on 3 yo lightly used keyed brush mower.. which is most likely and which is most unlikely candidate for problems.
ignition switch
solenoid
starter

Battery is fully charged & when key is turned to start only a clicking sound occurs

good luck on getting parts. might be better off to install a non keywed switch or relay