Motor blows fuse

Thanks for the details, they do help. Is there a way you can disconnect different electrical circuits from the battery? Like Disconnect the lights, horn, or other components then start adding them back until you find the circuit or group of wires that causes the short. Because it seems you have a short somewhere, or something really putting a load on that 30 Amp fuse. So I'd break the circuits down to smaller pieces so that when you reconnect the lights, or starter, or whatever....that the fuse pops and you know the circuit causing the issue. You may have to open engine components like a magneto to isolate the circuits. But it shouldn't cost you anything except time.

It sounds like another fuse is blown or possibly a relay. Check all of them, if none are bad, then make sure your battery cables are good, use a test light to check them. Its more then likely a bad relay though. Good luck !

The Main Fuse, is located behind the left hand side panel below the drivers seat. It is a 30 amp green fuse that is in the starter relay. Pulling out this fuse will cut all power to all parts of the bike.

In order to determine where your electrical drain is while your bike is off, replace the 30 amp main fuse back into the starter relay, and pull fuses from the fuse box, one at a time. Let your bike sit, for however long it takes to drain your battery, to determine what system is draining your battery.

For example, pull the fuse labeled for the lights and see if the battery drain goes away. If it does, then you will need to check all the wires that power the lights. If the drain persists, replace the fuse you removed and remove a different fuse and see if the drain is still there. This will help you determine what system is draining your battery and help you focus on that system to pin point the drain.

It is most likely a wire that has rubbed its insulation off and is coming in contact with either the frame or two or more wires that have fused together through heat or insulation being rubbed off.

KPCYCLES.com Hawaii

Check under the hood in the fuse relay box for a blown fuse. They blow sometimes when changing batteries.

When you say "the fuses at the relay", I'm taking that to mean the system fuses located behind the left crankcase cover just aft of the coolant reservior. Have you checked the main 30 amp fuse located under the saddle? There should be two 30 amp fuses under the saddle; one is a spare, the other is active. If the main fuse blows out, nothing will work.

YES!
Good link here:
http://www.flygenring.dk/yamaha/artikler/1100ChargingSystem.pdf

Symptoms:
Lights flickering at times and/or battery gets hot to the touch

Problem:
Reglator/Rectifier

When the regulator dies, it allows as much as 19 volts to appear across the battery. This is not good. It will cook the battery and the battery could even explode. Fuse can not stand up to this!

take your battery and have it tested. just because you have voltage dosnt mean its there under a load

I know this sounds aomewhat general, however please give the following some thought:
Check your relays, if you have an aftermarket horn you may have a different relay. To troubleshoot unplug your headlight, unplug your horn, etc.. Turn your ignition switch to accessory only. See if the fuse pops. If it does unplug whatever added accessories you may have still have plugged in. Once you can get the fuse to stop popping, turn the ignition switch to on. Then one at a time plug you accessory, headlight, etc. back in. When you find what pops the fuse, unplug that item, start plugging in the other items, if the fuse has not popped you have potentially isolated the circuit causing the issue. Now check the wiring for loose connections, bad ground, and CHECK the relay if that item has one. Hope this helps,

JP

Hi and welcome to FixYa,

To address the "...bike is dead...", initially:

• externally charge the battery;
  
• chec/replace the 30 Amps main fuse located at the starter relay;
  
• to locate the starter relay, follow the big cable from the battery's + terminal;
  
• if the fuse blows,. disconnect the regulator and replace the fuse to try again.
  

Postback results of initial tests.

Good luck and thank you for asking FixYa.

a jump box is nothing more then a battery with leads on it so where are you connecting it verses the new battery you put in the bike. that doesn't make since unless you are connecting the box right to the starter motor then it be constently running the motor untill you unhooked it. check all your fuses and examine all wire harnesses for damage, burns, or any mellting.