Applies to Hot Spark 3-Series (red) ignition kits. Final Thoughts. The ignition coil also called ignition armature, is a crucial functional tool in the power system of a leaf blower, especially the one powered by gas. Touch your positive lead to each of the terminals on the ignition coil a good coil should read close to 9k Ohms, If your coil has more then 12-14K Ohms resistance then this is likely it needs replacing. Decided to leave the group of brown wires on that post instead of letting them hang loose in the engine compartment like I found them. Many riders face issues with the coil. Set the meter to 20K Ohm setting, and attach the leads to the ignition coil's center terminal. Ignition designs that use the electromagnetic field of an ignition coil to store spark energy are technically known as "Kettering" ignition systems, named after its original designer 75 years ago. Use coil with 3.0 ohms primary resistance. 1.4 Ohm Ballast Resistor - Ideal for Use with Electronic Ignition and High-Voltage Charging Systems. It’s advisable to check at the manufacturer’s specifications for correct readings. 2000 Y33 q45 Ignition coil Ohm test explained bad good. If you own a Harley Davidson bike, one of the things that might bother you is the ignition coil. The pick up in the nose cone, the modual, and all the wiring in between. No continuity to chassis ground. That will show a completely open coil, replace them. ? A working ignition coil will give a reading of between 2.5 – 5 k ohms. Set your Multi-Meter to 20K Ohms and connect the black ground lead to the spark plug wire. Coils can be tested with an ohmmeter (most coils will give a reading around 8,000 ohms) or with the small scope on a Sun machine. Compatible Coils for Use with Hot Spark ® Ignition. (4- and 6-cylinder) engines: Use a coil that has resistance, measured between the + and - terminals of the coil, of at least 3.0 Ohms (Ω). The correct amount of resistance is less than 5 ohms. If resistance is not .6-.8 ohm, replace ignition coil. I'm looking for an ignition miss. Testing or checking an ignition coil can tell you a lot about the health of your ignition system. Cylinder ignition coil (electronic ignition system with map-controlled ignition) Primary: 0.5 Ω–2.0 Ω/Secondary: 8.0 kΩ–19.0 kΩ Single-spark or dual-spark ignition coil (fully electronic ignition system) Primary: 0.3 Ω–1.0 Ω/Secondary: 8.0 kΩ–15.0 kΩ I am getting about 18K ohms, on the secondary, measured are the plug cap. Also r educes burning and pitting of contact breaker points. I tested everything and it's down to bad coil or bad ignition module. Resistance can be measured with a Multimeter. Recommended - DC1-1. It first acted up when my battery went bad. Coil Ohms are describing inductance. You can't see this happen with a test lamp. Since the coil is the center of the system, it has to be working right or the car will not run right. You will find that the primary resistance will be a low number; 0.5 to 5 ohms, for example. I think (correct me if I'm wrong) the stock coils are 5.8 Ohms. Spin the engine over (at least 250 RPM) and watch for spark in the tester window. Ignition Coil: The ignition coil is probably the easiest thing to check and therefore the first thing to check when embarking upon ignition system troubleshooting. After checking the readings, if a zero reading is displayed, it means your ignition coil has a problem within the primary winding. The secondary resistance will be in the thousands of ohms. so if the pick-up coil is suppose to be 130-190 ohms and i get a reading of 145.6 k-ohms then this is out of range and the part is bad… no?? I later discovered the correct Nology coil for the Thunderbird Sport is their model number PFC-06S. Part Number: ALM-140405 Not Yet Reviewed The FCC will come after you. Step 3: Test the secondary coil resistance. The coil is probably the easiest thing to check and therefore the first thing to check when embarking upon ignition system troubleshooting. Ive ruled out Flooding and it does have spark, but I'm wondering about the ignition coil that once it heats up it fails. Install the 19368 spark tester between the high-tension lead and a good engine ground. Set the positive lead of the multi-meter in position where the spark plug would usually insert – ensure it has made good contact. It is used to show the relative power of a coil. Rather than get into the specifics of every application we make the general recommendation - 5 ohm for street, 3 ohm for race. Measure resistance between coil tower and each terminal of distributor 2-pin connector. See if the reading is within this range. If the coil fires when you cause a momentary ground, then the ignition would be suspect. Setting multimeter on 20k ohms: the secondary reads 5.74. When testing your Harley Davidson ignition coil you will be testing ohms resistance. Testing the Coil or Armature Clip one end of the spark tester (service part number 19368) to the ignition cable and the other grounded to the cylinder head Dynatek Twin Fire Ignition Coils will enhance the benefits of, and is the perfect compliment to the DD2000-HD1EP* Digital Ignition System. If you are reading 0.0 between the tower terminal and either of the 2 other terminals, the coil is bad If I'm reading the manual correct, they are supposed to be 1.8 - 2.2 ohms. NOTE: DO NOT use the DC6-5 coil with the DS6-2. Ignition coils take energy from the battery (usually 12 volts) and convert it to a high enough voltage (50,000 volts or more) to create a spark. Ignition coil: Primary: 1.7 ohms (out of range) Secondary: 10.64kohms (in range) Pick-up Coil: 145.6 k-ohms, “Infinity” ohms, and 0.957 M-ohms. Damage to the coil and ignition will result and will NOT be warranted. Of course the vapor tends to get warmer and warmer as you go from 2.0 Ohms to 1.0 Ohms, however not as warm as with sub ohm coils. Testing the coil requires an ohms meter. Brought to you by Infiniti Parts USA, your OEM source for Q45 parts! You'll want to start by checking for signs of bad ignition coils, and then follow up that diagnosis by testing the coils with a multimeter. Ignition Coil, Round, Female/Socket, 3.0 ohms, Yellow, Coil Wire, Mounting Bracket, Harley-Davidson®, Kit. ? Ignition Type: Coil Type : Ballast Resistor Requirements : OEM Breaker points: OEM coils (2.0 ohm primary resistance) Retain stock 3.0 ohm ballast. Step 2. The coil fires because the ign applies a momentary ground to the coil. Resistance should be 12,500-18,000 ohms. Ignition Coil Primary Resistance Definition & Description. Consider 1.83 ohm auto-replacement ballast per above discussion for improved performance at the expense of accelerated points wear and slight increased potential for premature early coil failure So, I'm testing the primary windings on both ignition coils to find resistance around 3.2 - 4.2. I have about 2 ohms on the primary I was able to find the spec for that and it is good. With the ignition switch off and the points open, touch the ohmmeter leads to # 1 and # 15 of the coil, repeat on the other coil. Step 1. Coil Warning: DO NOT use a low-resistance or an HEI-style coil. book says 130-190 "ohms" Battery: Still 12.17 ohms. the incorrect type of HT coil, IE one that does not have the metal frame around the coil body this maybe the cause of poor starting. Primary resistance is the measure of how hard it is for current to flow through the primary windings. However, for experts, identifying the problem is quite easy; but, it can be brain-racking for newbies or who isn’t familiar with motorbike mechanical issues. The plug caps, plug wires or the spark plugs themselves must have about 5K Ohms or you will be generating RF energy. Standard ignition coils will have a primary resistance close to 3 ohms while ballast ignition coils are typically between 1 ohms and 2 ohms. Post Reply . It is expressed in ohms (Ω). With this primary reading, is this coil suspect? Many threads point to possible ignition coils going bad. I have an MTD with a Kohler engine SV530-0029 The engine runs for like 5-10 min and suddenly stops. It is the part that starts the device and may fail to run when there is a problem. Using a standard coil on a ballasted ignition system will result in low spark voltages potentially leading to running problems. How to Tell if an Ignition Coil is Bad. In checking my coil I have readings as follows: Primary side: 1.1 ohms Secondary side: 4.65 K ohms I've read readings should be .7 ohms (primary) & 4.7K ohms (secondary). Setting multimeter on 200 ohms: the primary is bouncing between 0.8 and 0.9. Ignition coil secondary resistance = 5K to 10K Ohms" Today, I measured the secondary of one of my coils (did not remove the coil from the engine) and I measured 6.24K Ohms from tower to tower. 1.4 Ohm heavy-duty, external ceramic ballast resistor - installed between coil's + terminal and condenser or HotSpark ignition's red wire. Set the multi-meter to the 20 k ohms setting. A Q45 forum / Cima forum for the President of Infiniti's lineup. Incorrect or low quality HT coils should be replaced for the correct sort. Inductance is about electromagnetic force. How is it measured? No spark condition. Plugged the ignition coil back in. Step 2. Print view; 3 posts • Page 1 of 1. willko1 Posts: 123 Joined: Mon Aug 13, 2012 9:22 pm However, when the coils arrived, the coils were 3.0 ohm rather than the 0.6 ohm coils necessary fo the Thunderbird Sport ignition. Ignition coil’s primary resistance should be ranging between 0.4 and 2 ohms. However, it is more common for coil problems to show up as hard starting, a repeated high-speed miss or a gradual decline in ignition system performance. Product Overview II . Step 1. If resistance is not as specified, replace ignition coil. Canister Coils are designed for those stock or street/strip applications while E-Coils are engineered to suit high-vibration, high-performance applications and Direct OEM replacement FORD COP and GM LS Coils round out the line. But that's a whole nother set of stuff to work through. PerTronix Flame-Thrower Coils are designed to mate with our line of Ignition products, but they can also benefit virtually any distributor type inductive system. 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