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Asia star primary coil

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I have a 2001 roadking it has no spark


Remove the plugs and visually check the condition of the plugs and then reinstall them and leaving both plugs installed remove the spark plug cable from one of the spark plugs and THEN attach the HT cable to a SPARK TESTER and clip the tester to the cylinder head bolt and crank the engine over looking for spark and repeat the procedure on the other cylinder also. Be aware that the Engine will not spark with both spark plugs removed, so when checking for spark, use a SPARK TESTER with both plugs installed.



If you have no spark test the coil first. There should be power to the coil primary all the time the run switch and ignition switches are ON. If not check all switches, relays and fuses.

If the CKP is defective you will also get no spark so check it last.

Test the primary coil resistance on your coil. Disconnect all the wires going to the small terminals (primary) on your coil. Using a good ohmmeter on Rx1 setting, test the resistance between the two small terminals. You should read somewhere between 2 and 3 ohms. If you read more, the coil is bad. Before you do this test short out both leads of the ohmmeter and if the reading is not zero you will need to write down or otherwise remember the number and subtract it from the reading you get from the primary circuit test or you will have an incorrect resistance reading for the primary wires because you will also be reading the ohmmeter internal resistance and/or the wire and lead resistance added to the primary wiring resistance.

You can also test the coil by leaving the "hot" wire on the coil and replacing the other side (ground side) with a short piece of wire. Turn the ignition on and temporarily ground the short piece of wire you put on the "out" (ground) side. When you take the wire away from the ground, (which will collapse the primary current into the secondary) you should see a spark at the plugs if it is a wasted spark system or at one of the plugs if it is not a wasted spark system. If you have current to both sides of the primary of a two part coil both plugs should get a spark whether wasted spark system or not as you are energizing both sides of the primary and collapsing both into both secondaries at the same time when you remove the ground wire from the cylinder head ground.

MORE:

Ignition Coil Primary Circuit Test
Remove the coil. THEN set your ohmmeter scale to RX1 and place ohmmeter leads on the primary coil windings A (front of coil) to B (middle of coil), B to C (front of coil) and check for primary coil winding resistance which normal resistance range is 0.5-0.7 ohms. If primary resistance is not within this range check out test results below.

Ignition Coil Secondary Circuit Test
With the ignition coil removed from the motorcycle and the ohmmeter set to the RX1K scale place the ohmmeter leads on the secondary coil windings B (middle terminal) to
R (rear secondary terminal/socket), B to F (front secondary terminal/socket) and check for secondary coil winding resistance which normal resistance range will be 5.5-7.5K ohms. If secondary resistance is not within this range check out test results below.

Test Results
A low resistance value indicates a short in the coil winding which requires coil replacement.

A high resistance value might indicate that there is some corrosion/oxidation of the coil terminals requiring the coil terminals to be cleaned and the resistance test then repeated and if after the test is repeated the resistance is still high after the terminals were cleaned the coil must be replaced.
If there is an infinite ohms or no continuity) resistance value the coil is open and must be replaced.

Sep 29, 2014 | Harley Davidson Motorcycles

1 Answer

Free wiring diagrams


There is not really a negative primary coil wire per se BUT ...............

The 2006 carbureted models have a three wire 83B connector with #3 wire being BE/O Front coil wire carrying the primary current supplied from the #2 W/BK wire to and through the front coil primary circuit to the ECM (#2 wire being W/BK and supplying current from the Stop Run Switch to both front and rear coil primary circuits at the same time) and the #1 wire being Y/BE Rear coil wire carrying primary current supplied through the W/BK wire to and through the rear primary wire #1 to the ECM. So, current comes to both coil segments (front and rear) simultaneously, passing both primary windings by two separate wires to ground through/in the ECM until the ECM opens each circuit independently of the other and thereby collapse the current in each primary winding into each secondary winding at the appropriate time to fire the respective spark plug.

The 2006 EFI models have a four wire 83B connector with wire "A" being Y/GN Power supply wire; wire "B" being GY/BE and the ION sense wire to the ECM; wire "C" being Y/BE Rear primary coil segment and Wire "D" being BE/O Front primary coil segment. Again current comes to the coil through the Y/GN "A" wire and passes through the front primary circuit to the ECM via the BE/O wire until the ECM opens the circuit which collapses the front coil primary current into the front coil secondary circuit inducing a high voltage current which then bridges the gap and fires the front spark plug and through the rear coil segment primary circuit to the ECM via the Y/BE wire until the ECM opens the circuit which collapses the rear primary current into the rear secondary circuit inducing a high voltage current which then bridges the gap and fires the rear cylinder spark plug.

I hope this answers your question whichever 2006 Softail model you have.

Jul 11, 2014 | Harley Davidson FXSTB Night Train...

1 Answer

What causes clutch drag on 2009 vstar 950?


Hi, Anonymous and the usual suspects are:
1. Clutch controls improperly adjusted.
2. Oil level too high in primary chaincase.
3. Primary chain badly misaligned.
4. Clutch discs warped.
5. Insufficient clutch spring tension.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
09 Star 950 Clutch Life
2004 Yamaha Star 1100 Clutch Replacement
2009 2012 Yamaha XVS950 Star Service Repair Manual DOWNLOAD Download...
OEM parts for Yamaha
YAMAHA XVS950A Owner Manual

Jun 10, 2014 | 2009 Yamaha V Star 950 Tourer

1 Answer

1974 xlch won't start


Check the coil first off if you have no spark. There should always be current to the coil primary when the ignition and run switches are on.

Test the primary coil resistance on your coil. Disconnect all the wires going to the small terminals (primary) on your coil. Using a good ohmmeter on Rx1 setting, test the resistance between the two small terminals. You should read somewhere between 2 and 3 ohms. If you read more, the coil is bad. Before you do this test short out both leads of the ohmmeter and if the reading is not zero you will need to write down or otherwise remember the number and subtract it from the reading you get from the primary circuit test or you will have an incorrect resistance reading for the primary wires because you will also be reading the ohmmeter internal resistance and/or the wire and lead resistance added to the primary wiring resistance.

You can also test the coil by leaving the "hot" wire on the coil and replacing the other side (ground side) with a short piece of wire. Turn the ignition on and temporarily ground the short piece of wire you put on the "out" (ground) side. When you take the wire away from the ground, (which will collapse the primary current into the secondary) you should see a spark at the plugs if it is a wasted spark system or at one of the plugs if it is not a wasted spark system. If you have current to both sides of the primary of a two part coil both plugs should get a spark whether wasted spark system or not as you are energizing both sides of the primary and collapsing both into both secondaries at the same time when you remove the ground wire from the cylinder head ground.

May 26, 2014 | 1979 Harley Davidson XLS 1000

1 Answer

How to trouble shoot code p0360


P0360 - Ignition Coil '10' Primary/Secondary Circuit Malfunction

Ignition Coil Primary/Secondary harness is open or shorted
- Ignition Coil Primary/Secondary circuit poor electrical connection
- Faulty Ignition Coil Primary/Secondary
- Faulty Engine Control Module (ECM

Read more: http://engine-codes.com/p0360.html#ixzz21fHBlyUw

Jul 25, 2012 | Chevrolet Silverado 2500HD Cars & Trucks

1 Answer

I have a 2004 Ford Taurus ses with a 3.0 liter v6(not the dohc model either). Today the check engine light came on. I took it to autozone to have the code run and they told me that it could be the primary...


Does the vehicle have coil on plug ignition or coilpack ? And it's not primary or secondary coil malfunctioning It's primary or secondary circuit . I'm assuming it has a coil pack because you say plug wires.
P0350 - Ignition Coil (Undetermined) Primary/Secondary Circuit Malfunction Each ignition primary circuit is continuously monitored. The test fails when the PCM does not receive a valid IDM pulse signal from the ignition module (integrated in the PCM).
  • Open or short in the Ignition START/RUN circuit.
  • Open coil driver circuit.
  • Coil driver circuit shorted to ground.
  • Damaged coil.
  • Damaged PCM.
  • Coil driver circuit shorted to VPWR.
P0351 - Ignition Coil A Primary/Secondary Circuit Malfunction See the description for DTC P0350. See the possible causes for DTC P0350.
Pull the spark plugs out an look at them , check the gap ,if too wide replace them . If the spark plug gap gets too worn ,the spark won't jump the gap. It will find the least resistance path to ground ,and it will do it inside the coil . Going from the secondary circuit back to the primary coil an to ground through the PCM - engine computer . The PCM has transistors inside that open an close the primary side to ground ,this builds up a magnetic field around the secondary inducing high voltage spark . Well this can short out the transistor inside the PCM . Most of the time that's what these type codes mean . The PCM would need to be replaced an programmed . This can also damage the catalytic converter. Your best bet , take your vehicle to a qualified repair shop.

Jul 21, 2017 | 2004 Ford Taurus

2 Answers

Igniton coil f p0356 primary or secondary circut malfunction what does this mean


Integrated ignition coil on plug

Ignition coil F is cylinder number 6 need to check or replace
Spark plug or coil,

Very rare you have to check PCM pin E39 to see if you have a short in the wire.

Sep 26, 2009 | 2005 Ford Expedition

1 Answer

2005 yamaha royal star venture. Still haven't found the problem with no spark on left rear coil. I replaced the coil, but there still isn't any spark. The wires (orange and black/red have continuity to the...


If you have continuity from the coil to the ignitor, the problem lies within the ignitor. The coils function by having a constant battery voltage on the red/black wire (you'll notice that ALL the coils have a red/black wire) - the primary windings in the coil charge up, until the ignitor "grounds" the colored wire (grey and white in the front, orange and yellow in the rear). As the voltage in the primary winding drops, it creates a strong magnetic field - the magnet (laminated iron) in the center of the coil charges the secondary windings, and the very high voltages generated fire the plug. You've already determined that the voltage on the orange wire is higher than the voltage on the yellow wire; that could only be because the orange wire is not being "grounded" on a recurring basis by the ignitor. (You have to remember that the meter you're testing the leads with cannot react to changes in voltage nearly as quickly as they happen; to really "see" what's happening at the coil, you'd need to use an oscilloscope).

Aug 25, 2009 | 2005 Yamaha Royal Star Venture

1 Answer

4.6 wont star no spark


Most likely place to start, coil, control module, distributor cap and rotor. If you have a manual and a multimeter you can test the coil or take the control module and coil to Autozone and they can test them for you. Then there's plug wires. With the multimeter, turn the key to the on position and you should read 12-14 volts on the primary side of coil. If you aren't getting any juice there, you bay be looking at a bad ignition switch. If this helps please rate this. Thanks.

Jul 04, 2009 | 1997 Ford Thunderbird LX

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