BX2370 blowing 50amp fuse

[mdkeener75]

Does anyone have any idea what would cause the 50amp fuse to blow when trying to start the tractor? It is less than a year old and has about 70 hrs on it? When I replace the fuse and turn it to accessory it is ok but when I actually try to start it it blows the fuse. I have checked the wiring at the starter, alternator, and the battery, I see no bare wire or anything that might be shorted. Could the ignition switch be bad? Would a bad starter cause it? Any help would be appreciated.

 

[85Hokie]

Does anyone have any idea what would cause the 50amp fuse to blow when trying to start the tractor? It is less than a year old and has about 70 hrs on it? When I replace the fuse and turn it to accessory it is ok but when I actually try to start it it blows the fuse. I have checked the wiring at the starter, alternator, and the battery, I see no bare wire or anything that might be shorted. Could the ignition switch be bad? Would a bad starter cause it? Any help would be appreciated.

Have you checked for rat damage? They can eat away at insulation and create havoc!!!

YOU have a positive hitting a ground somewhere once the starter is engaged.

 

[OLD GAR]

50 amp! What is fused with that beast? As 85Hokie say you may have a bare wire from the ignition to the starter. Another likely cause is the starter bearings are letting the armature drag and pulling an overload.

 

[100 td]

Lift the small start wire from the starter solenoid and try again, if it doesn't blow, then you have a fault in the starter/solenoid, if it still blows, track the wire back to the switch.