MTD Electrical Problem?


Old 09-18-07, 08:14 AM
Thread Starter
Join Date: Feb 2007
Posts: 4
MTD Electrical Problem?

I have an MTD lawn tractor that continually blows the fusses. I looked at all the wires and no rub anywhere. I replaced the wiring harness and the battery and the solenoid and still blow fusses. Engine cranks when solenoid is shorted out. Have new ignition switch on the way but from what I've been told it may not be that. Looked up the schematic from the manufacturer and all wires go to where they should go? HELP I'm going nuts (and bolts) replacing things here.
Sponsored Links
Old 09-18-07, 02:27 PM
puey61's Avatar
Join Date: Apr 2004
Location: Upstate New York
Posts: 3,224
The purpose of the fuse is to protect from overload within the starting circuit which would indicate a starter motor problem. If, as it appears, you have covered all possible wire issues by installing a new wiring harness.
Old 09-18-07, 11:33 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 16,822
Actually, the starter motor draws it's current directly from the battery, not involving the fuse. Many mowers have a short engine harness that unplugs from the main harness, and I doubt the new harness would have included this. If so, it may be the problem...or the diode on the alternator is blown (unplug the alternator plug and see if it still blows the fuse). Or, the alternator wire or other wire(s) could be pinched between the starter housing and the engine.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes