Question about Harley Davidson XL 1200 C Sportster Custom Motorcycles

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White wire and red wire for Harley coil. Which is hot? Which is ground?

Posted by Anonymous on

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  • Harley Davidson Master
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Hi Anonymous, the red is hot, the white is ground. Have nice day.

Posted on May 31, 2015

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Posted on Jan 02, 2017

  • 738 Answers

SOURCE: i jus bought a new

This coil lill not fit the 2wires on your coil are for diferent circuits, single wire coils are suitable for ac ignition systems and require 1end of the circuit going to earth, the 2wires on your coil known as a secondary circuit are 1 circuit, 1wire goes. In around the circuit secondary coil and back out

Posted on Feb 22, 2011

wd4ity
  • 4565 Answers

SOURCE: i have a 99 harley

If you have three wires going to your original tail lamp, you're probably right that one is ground, one is the brake light and one is the tail light. Since you say the black wire was grounded in the OEM tail lights this leaves you only two wires, one for the brake and one for the taillight. Simply turn on the ignition switch to turn on the headlight and you one of the wires should go "hot" or have electrical power on it. Use a volt ohm meter to figure out which one, Once you find the "hot" wire, this is the tail light wire. Then, step on the rear brake and the other wire should go "hot". This is the brake light and should be the brightest of the two filaments in the tail light bulb.

Good Luck
Steve

Posted on Mar 16, 2011

wd4ity
  • 4565 Answers

SOURCE: i have a 1984 harley

I can send you a complete wiring diagram for your Sportster. The wires you are talking about go to the stock igniton unit, the "brain box" or "black box" that is behind the triangular plate on the right side of the bike as best as I can remember (1984 was a long time ago). There should be two white wires on the coil and one is the "hot" wire and the other goes to the ignition unit. The pink wire goes to the tachometer. The blue wire goes to the opposite side of the coil from the white wire, same side as the pink wire. The black wire is a ground wire for the igntion unit most likely. But, I'm confused by you saying the wires go to a "sensor". The only sensor on the bike is in the timer cavity on the right side of the engine and the wires coming from it are different color from what you mention. Are you sure it's not simply a plug? Contact me directly at wd4ity@bellsouth.net and I'll send you the diagram. Remind me of what you need.

Steve

Posted on Jul 25, 2011

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My 1980 harley davidson sporster turning over but no spark


Hi Patrick, could be a number of places. With the ignition switch on and the run stop switch is in the run position take a test lite and check for power across all circuit breakers and that all connections are clean and tight and no broken or damaged wires. Then check for power at the coil this would be the white wire. Then check for power going into ignition module white wire and that the module has a good ground, it won't work if it is not grounded properly. There is a 3 wire harness coming out of module with a red, green, and black wire, check the red wire for power at the timing sensor located behind the timing cover which has 2 rivets holding it in place you will have to drill them out. If the test lite fails at any of these points track the wires back to a known good source and look for broken, cut , or pinched wires and repair as necessary also check all connector blocks a nd connector pins in the block these pins can fail frequently. Make sure you are grounding the spark plug threads when checking for spark and that the electrode is clean and dry. If every thing checks out then check the coil for proper voltage remove blue wire and hook up a volt meter between the coil and ground it should read the same voltage as your fully charged battery within half a volt. Also make sure your run stop switch is in the run position. If the coil checks out then it's either the timing sensor or ignition module, start by replacing the timing sensor first. If you have points replace condensor. Hope this helps good luck

Apr 13, 2015 | Harley Davidson Motorcycles

1 Answer

Wiring


the kill is your feed ..it goes to the jumped side..its hot all the time...the other sides of the coil are the breaker side of your coils..white to white...the other 2 are for 1 front and 1. rear...put a test lite on the wire and check when the cylinder is up to tell witch goes where

May 08, 2013 | Harley Davidson Motorcycles

1 Answer

I have a 1984 harley sportster with a 3 wire sensor(white,black,and blue wires) that i need to hook up to my new dual fire ignition coil, and new barrel type key ignition. not sure where the wires for...


I can send you a complete wiring diagram for your Sportster. The wires you are talking about go to the stock igniton unit, the "brain box" or "black box" that is behind the triangular plate on the right side of the bike as best as I can remember (1984 was a long time ago). There should be two white wires on the coil and one is the "hot" wire and the other goes to the ignition unit. The pink wire goes to the tachometer. The blue wire goes to the opposite side of the coil from the white wire, same side as the pink wire. The black wire is a ground wire for the igntion unit most likely. But, I'm confused by you saying the wires go to a "sensor". The only sensor on the bike is in the timer cavity on the right side of the engine and the wires coming from it are different color from what you mention. Are you sure it's not simply a plug? Contact me directly at wd4ity@bellsouth.net and I'll send you the diagram. Remind me of what you need.

Steve

Jul 25, 2011 | Harley Davidson XLS 1000 Motorcycles

2 Answers

When i got the bike it wasnt running .it had no coils ,no plugs .iv bought new ones and need to know what lead goes were from waht coil .


The coil for the #1/4 spark plugs is mounted on the left side of the bike, and has the solid orange (ground) wire and the red-with-white-tracer-stripe (hot) wire input leading to it.

The coil for the #2/3 spark plugs is mounted on the right side of the bike, and has the solid grey (ground) wire and the red-with-white-tracer-stripe (hot) wire input leading to it.

Mar 23, 2011 | Yamaha XJ 900 F Motorcycles

2 Answers

I have a 99 harley ultra classic. the rear tail light has 3 wires, black, red and blue. the black i figure is ground cuz it was grounded on the oem tali lamp, but the blue and red i cant figure out. i have...


I would suspect that the black is still ground and the red goes to the red from the bike and that the white is for brake switch when you press the pedal or lever. Hook it up that way and see what you get. Good luck.

HDTV GURU JAY

Mar 16, 2011 | 2003 Harley Davidson FLHR Road king

1 Answer

Installing a GE digital wall timer. Instructions say" connect Hot/live wire of main to black of timer. Connect Hot/live wire of load to red of timer. connect white of (neutral) to white of timer. green...


Review:
Black goes to Hot wire from breaker box
Red wire goes to Load (light, fan, motor)
White wire goes to Neutral
Green to bare copper ground wire

Orientation:
Your original switch had 2 wires plus bare ground.
One of these wires is Hot, the other goes to Load.
You said original wires are Red and Black

How do you find Hot wire?
-Your original switch had 2 wires.
-Remove timer from box.
-Pull original 2 wires out where you can test them
-Turn on power
-Use regular tester
-Tape tester leads to wood sticks so your hands stay away from voltage
-Power is on
-Test each original wire to bare ground wire
-When tester lights up, that is Hot wire ... this wire connects to Black wire on timer
- The other wire goes to Load so it connects to Red wire on timer

How to test for Neutral wire
Test Hot wire to your white wires - No need to untwist them.
When tester lights up, that is Neutral
White wire from timer connects to Neutral.
Green goes to ground wire.

How to reset timer
I'm not sure which timer you have. Probably GE 15086. Reset is small round button below HOUR button. Use paper clip and push-in reset until timer flashes 12 o'clock.

Sep 25, 2010 | Intermatic Inc. EJ500C Digital Wall Switch...

1 Answer

... There are too white wires, 1 with red strips


if 1 is live and 1 is ground then yes there for your coil
1 side in is hot // other side out is ground or it wont work.

Nov 19, 2009 | 1988 Dodge Colt Hatchback

2 Answers

Installing FUH cealing heater used 10-3 wire


If you use the white wire as a hot wire, you must identify the wire as being a hot wire at the breaker panel and the unit. The white
wire must be marked about 6 inches back from the terminal
connections with black paint or wrapped with black insulation tape.

It would be easier to use the red wire, since most electricians would identify it as being a hot wire

Jan 09, 2009 | Fahrenheat Ceiling-Mount Industrial Heater...

1 Answer

Ignition module wiring on 85 f150


The red wire goes to constant hot and the white wire is on the key on/off. The green is a tach signal and the black is ground.

Jul 15, 2008 | 1985 Ford F150

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