The FCC will come after you. Set the multi-meter to the 20 k ohms setting. Measure resistance between coil tower and each terminal of distributor 2-pin connector. Ive ruled out Flooding and it does have spark, but I'm wondering about the ignition coil that once it heats up it fails. I'm looking for an ignition miss. You will find that the primary resistance will be a low number; 0.5 to 5 ohms, for example. I tested everything and it's down to bad coil or bad ignition module. If resistance is not as specified, replace ignition coil. 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. 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?? Setting multimeter on 20k ohms: the secondary reads 5.74. 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. Set the positive lead of the multi-meter in position where the spark plug would usually insert – ensure it has made good contact. So, if you are a smoker trying to make the switch or a vaping beginner then a device with 1.5 – 1.8 Ohm coils would be advisable, however, in the end everything depends on personal preference. Product Overview II . If you are reading 0.0 between the tower terminal and either of the 2 other terminals, the coil is bad Also r educes burning and pitting of contact breaker points. It first acted up when my battery went bad. 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. The correct amount of resistance is less than 5 ohms. But that's a whole nother set of stuff to work through. The pick up in the nose cone, the modual, and all the wiring in between. See if the reading is within this range. 1.4 Ohm heavy-duty, external ceramic ballast resistor - installed between coil's + terminal and condenser or HotSpark ignition's red wire. Set the meter to 20K Ohm setting, and attach the leads to the ignition coil's center terminal. With this primary reading, is this coil suspect? Coil Ohms are describing inductance. Resistance should be 12,500-18,000 ohms. Final Thoughts. You can't see this happen with a test lamp. Brought to you by Infiniti Parts USA, your OEM source for Q45 parts! 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. Part Number: ALM-140405 Not Yet Reviewed Compatible Coils for Use with Hot Spark ® Ignition. 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. 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. 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. ? Testing or checking an ignition coil can tell you a lot about the health of your ignition system. 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. 1.4 Ohm Ballast Resistor - Ideal for Use with Electronic Ignition and High-Voltage Charging Systems. 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 Incorrect or low quality HT coils should be replaced for the correct sort. I think (correct me if I'm wrong) the stock coils are 5.8 Ohms. Many riders face issues with the coil. If resistance is not .6-.8 ohm, replace ignition coil. 2000 Y33 q45 Ignition coil Ohm test explained bad good. The coil is probably the easiest thing to check and therefore the first thing to check when embarking upon ignition system troubleshooting. It is used to show the relative power of a coil. I later discovered the correct Nology coil for the Thunderbird Sport is their model number PFC-06S. 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. When testing your Harley Davidson ignition coil you will be testing ohms resistance. Testing the coil requires an ohms meter. Step 1. Rather than get into the specifics of every application we make the general recommendation - 5 ohm for street, 3 ohm for race. The coil fires because the ign applies a momentary ground to the coil. Resistance can be measured with a Multimeter. NOTE: DO NOT use the DC6-5 coil with the DS6-2. Ignition Coil, Round, Female/Socket, 3.0 ohms, Yellow, Coil Wire, Mounting Bracket, Harley-Davidson®, Kit. Using a standard coil on a ballasted ignition system will result in low spark voltages potentially leading to running problems. If the coil fires when you cause a momentary ground, then the ignition would be suspect. No spark condition. 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. It is the part that starts the device and may fail to run when there is a problem. Ignition coil’s primary resistance should be ranging between 0.4 and 2 ohms. Use coil with 3.0 ohms primary resistance. Coil Warning: DO NOT use a low-resistance or an HEI-style coil. Standard ignition coils will have a primary resistance close to 3 ohms while ballast ignition coils are typically between 1 ohms and 2 ohms. (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). 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). No continuity to chassis ground. That will show a completely open coil, replace them. Post Reply . How is it measured? 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. 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. Recommended - DC1-1. Setting multimeter on 200 ohms: the primary is bouncing between 0.8 and 0.9. Spin the engine over (at least 250 RPM) and watch for spark in the tester window. Step 3: Test the secondary coil resistance. The normal, acceptable range for a standard 12-volt car is 1.5 to 1.7 Ohms. Install the 19368 spark tester between the high-tension lead and a good engine ground. It is expressed in ohms (Ω). book says 130-190 "ohms" Battery: Still 12.17 ohms. The plug caps, plug wires or the spark plugs themselves must have about 5K Ohms or you will be generating RF energy. 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. Applies to Hot Spark 3-Series (red) ignition kits. Set your Multi-Meter to 20K Ohms and connect the black ground lead to the spark plug wire. Ignition Type: Coil Type : Ballast Resistor Requirements : OEM Breaker points: OEM coils (2.0 ohm primary resistance) Retain stock 3.0 ohm ballast. Dynatek Twin Fire Ignition Coils will enhance the benefits of, and is the perfect compliment to the DD2000-HD1EP* Digital Ignition System. Plugged the ignition coil back in. Primary resistance is the measure of how hard it is for current to flow through the primary windings. After checking the readings, if a zero reading is displayed, it means your ignition coil has a problem within the primary winding. However, when the coils arrived, the coils were 3.0 ohm rather than the 0.6 ohm coils necessary fo the Thunderbird Sport ignition. A Q45 forum / Cima forum for the President of Infiniti's lineup. Print view; 3 posts • Page 1 of 1. willko1 Posts: 123 Joined: Mon Aug 13, 2012 9:22 pm I have about 2 ohms on the primary I was able to find the spec for that and it is good. How to Tell if an Ignition Coil is Bad. 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. It’s advisable to check at the manufacturer’s specifications for correct readings. So, I'm testing the primary windings on both ignition coils to find resistance around 3.2 - 4.2. If you own a Harley Davidson bike, one of the things that might bother you is the ignition coil. 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. 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 Damage to the coil and ignition will result and will NOT be warranted. I have an MTD with a Kohler engine SV530-0029 The engine runs for like 5-10 min and suddenly stops. Since the coil is the center of the system, it has to be working right or the car will not run right. 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 Many threads point to possible ignition coils going bad. Inductance is about electromagnetic force. I am getting about 18K ohms, on the secondary, measured are the plug cap. A working ignition coil will give a reading of between 2.5 – 5 k ohms. ? 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