The wiring coming from the ignition might be rubbing against the steering column causing one of the wires to become abraided.
jeff lee
May 2008
More than likely its the solenoid, connected in the heavy starter motor wires thats at fault.....disconnect the thin wires at the push on terminals, turn the ignition on and see if the fuse holds.
John
May 2008
I can answer this question...
why is the fuse blowing on my sears garden tractor mod. no. 917.276320?