Question about 1998 Ducati Monster 900

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ALTERNATOR TO VOLTAGE REGULATOR WIRES MELTING ?

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Would mean circuit is over loaded/shortted

check diode pack for polarity and battery

Posted on Nov 17, 2009

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Posted on Jan 02, 2017

SOURCE: my fzr 600 keeps blowing the main fuse, if i try

Check your battery cables to see if you have direct short. that is what it sounds like.

Posted on Aug 22, 2009

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1989 dodge 250 the red ignition wire is getting hot and melting in two when the key is turned to the run position


Blue wire to ignition switch,from alternator voltage regulator.( 12 volts ) ECU power wire, Red wire to battery terminal. Blue wire goes from alternator to the ignition switch. The voltage regulator senses the incoming voltage from the blue wire. ) it grounds the green field wire This energizes the alternator field, and the alternator begins to produce a charge and sends it to the battery via the main output wire. When the voltage regulator senses 14 volts from the blue field wire, it cuts the ground to the green field wire. Good-Day!

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Alternater wont charge battery and fusable link on starter keeps burning


Bad voltage regulator. Usually built-into alternator.
Start car and unplug battery, if it dies your alternator is dead. Get new alternator. If car keeps running, get a voltmeter and check voltage coming through - should be higher than 12v but less than 18v. Any other number means your voltage regulator is dead, cheaper to get a new alternator.

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Hello, again, again Bridget. First I sent you explanation of the ignition system and I gave you my best guess---ignition module on your 1994 Plymouth with V6 3.4 L engine.

As far as voltage regulation goes there isn't any external devise to do this. This voltage voltage regulation take place inside the alternator after the three phase AC voltage is turn into none regulated DC voltage. Now this DC voltage goes thru a voltage regulator that built into the alternator where the output DC voltage is 13.8 to 14.1 DC Volts. Now, the alternator is regulated for current by the it wire windings in the alternator. Larger the copper wire the more current the alternator will produce. GB.....stewbison

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1 Answer

Alternator on montero melted the wire and almost welded itself to the alternator i need to re wire the alternator and need to know what all wires i need to check and replace i need this fixed asap for it...


WHAT COLOR WIRES MELT TO ALTERNATOR ONE WHITE WIRE BATTERY FEED FUSE LINK WIRE OR THE WHITE AND BLUE WIRE TO VOLTAGE REGULATOR TO COMBINATION METER. WHEN YOU REPLACE ELECTRICAL WIRES BESURE TO PUT FLEXIBLE CONDUIT AROUND WIRES TO KEEP ENGINE HEAT AWAY FROM WIRES AND CONDUIT WILL KEEP WIRES FROM RUBBING CAUSING SHORT TO GROUND.

Jul 27, 2011 | 1999 Mitsubishi Montero Sport

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Hi I have a 2001 Honda shadow ACE motorbike. There are 3 yellow wires going from the alternator to the voltage regulator through a 3 pronged plug. They have become very hot and fried themselves at...


3) there may be damage that has caused this
2)doesnt matter which yellow wire
1)maybe fried regulator or stator coils or aged insulation which has allowed a short between windings

The three wires are the 3 poles of the stator windings,

Fix the wires and plug first(electronics shops will have suitable 3 or 4 pin plugs to use)
get a multi meter and check resistance, any pair should have same resistance, non should short to ground.
with the bike running they will produce AC current (maybe 50-60vAC)again any pair.
If you are getting good AC voltace, then put the meter across the battery 12vDC engine stopped should rise to 14 vDC (about) when engine revved to 3000rpm

No AC -new stator
No DC-new regulator
Note voltages are estimates, many bikes run very similar charging systems

Jun 08, 2011 | 2001 Honda VT 750 CD Shadow A.C.E. Deluxe

1 Answer

I am trying to locate the alternator and voltage regulator in my 1985 jaguar xj6 there was an electrical problem and some on the wires melted down in the dash board we replacedd the wires and got a new...


FOLLOW ALTERNATOR WIRES AND BATTERY POSITIVE FEED WIRE.IT WILL TAKE YOU TO THE VOLTAGE REGULATOR BOX.CHECK ALTERNATOR FUSE.IF YOU HAD WIRES TO BURN AND MELT.MORE LIKELY YOU HAVE A BLOWED FUSE.

Sep 17, 2010 | 1985 Jaguar XJ6

3 Answers

Where is the voltge regulator on a 1989 lincoln town car


VOLTAGE REGULATOR IS LOCATED BEHIND BATTERY.YOU PROBABLY MIGHT HAVE TO REMOVE BATTERY TO REMOVE THE VOLTAGE REGULATOR.

May 16, 2010 | 1989 Lincoln Town Car

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20 hP briggs engine keeps burning up the altenator under flywheel. Checked amperage and doesn't seem to be high.After the engine runs a few minutes it melts the alternator and it grounds out. When the...


Yes it sounds like the voltage regulator is shorted.The 30 ac volts is correct for the alternator output.The yellow leads on the regulator shouldn't read ohms between each other or to the aluminum case.The red lead shouldn't read ohms to the aluminum case.If you do a diode test between either of the yellow wires to the red wire it should read one way only. If it reads both ways in a diode test it is bad.Voltage regulators are cheap on ebay

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1 Answer

Charging alternater wire gets hot and archs


yep the regulator is stuck open replace it

Aug 26, 2008 | 1985 Ford Ranger

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