how to test a cdi box on a scooter

But if both these differ so this means your CDI is faulty or needs replacement. More about us. The main power wire can usually be found near the battery, and it will be clearly labeled. ), Mauritania (USD Before we move further If you need a reliable multimeter that lasts long and delivers amazing quality, I highly recommend buying it from here without any additional charge. How to test a CDI box with a multimeter? As we have discussed previously the new CDI box is not expensive but you should test it thoroughly using Multimeter before replacement. Here in this video you would learn how to test a bike or motorcycle cdi unit using a multi meter. Amazon Affiliate Disclosure: DirtBikeMoto.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to amazon.com, endless.com, smallparts.com, myhabit.com, and any other website that may be affiliated with Amazon Service LLC Associates Program. L), Monaco (EUR ), Tunisia (USD Testing motorcycle CDI unit with multimeter cagmito76 8.45K subscribers Subscribe 39K views 2 years ago Testing motorbike ecu, icu, computer ignition (keeway superlight 125). Here in this video you would learn how to test and repair a bike or motorcycle cdi unit using a multi meter. Sh), Thailand (THB Some of our partners may process your data as a part of their legitimate business interest without asking for consent. .), Andorra (EUR $), Malawi (MWK This sudden discharge produces a high spike of voltage in the ignition coil. A dead cylinder may also be caused by a bad ignition coil or a bad diode. $), China (CNY Also, Connect the red lead one on any other terminals one by one. Clamp the black probe of your multimeter to the ground and then test in turns the yellow and pink wires by pressing the probe at the end of the cables. Share them with us in the comments below! To test the faulty CDI we need a multimeter, Outboard engine, Spark plug tester, and Spark plug wire to test perfectly. $), Bhutan (USD If theres no power, it will read 0 volts. By testing CDI makes for a more enjoyable ride. ), Zambia (USD In this article, we willlearn, how to test a CDI box with a multimeter. A multimeter is a useful tool for accessing and testing the health status of a CDI box. The voltage, continuity and resistance is generally the same as on the stator end. All rights reserved. kr. Also, you need to analyze the outcome as what you do next depends on your analysis. ), Christmas Island (AUD Replace any damaged or worn parts as needed and fill up the brake fluid if it's low. $), Tonga (TOP This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. The alternator (exciter) coil is typically powered with an AC voltage ranging anywhere up to 400 Vac. $), How to Check 240 Voltage with a Multimeter, Afghanistan (AFN The ignition system may need to be checked. $), South Georgia & South Sandwich Islands (GBP Lei), Russia (RUB $), Caribbean Netherlands (USD ), Belize (BZD In this article, we shall be discussing how to test a CDI box with a multimeter. Lets get right in. ), Kuwait (USD Conversely, if your cinch is too tight, youll be incredibly uncomfortable and may even injure yourself or your horse. Also, this resistance should be between 387 and 487. Without this signal the CDI will never spark. Because every model of the bike has a different box. During World War Two, Bosch had fitted thyratron (tube type) CD ignitions to some piston engined fighter aircraft. Plus, its always better to catch problems early on so that you can fix them before they cause too much damage. C$), Niger (XOF This is my first time I have visited here. It was the Robert Bosch company which was the pioneer of the first electronic CD ignitions. $), Turkey (USD With the main power wire disconnected, you can now work on your bike without worry. ), Grenada (XCD ), Tunisia (USD $), Kazakhstan (KZT $), St. Martin (EUR Before conducting any testing you must have the required material to save from any danger or any electric shock. If your bike fails to stop when you hit the killswitch, you should disconnect the black and white stripe wire while your bike is still running and ground it. Post by scootertuner1000 onSep 6, 2013 at 9:46am. You should be worried if your resistance results arent within these ranges and in that case, book an appointment with your mechanic. $), Bulgaria (BGN Shop Owner. It is not complicated, and anybody can use it to measure resistance and other parameters it was created to measure. CDIs are active components that have capacitance inside although this is usually minimal (i.e. MK), Malaysia (MYR .), Senegal (XOF We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. How To Check AC Fan Motor With Multimeter, How To Test A Motherboard With A Multimeter. $), South Africa (USD CHF), Lithuania (EUR Before we find out the various ways of testing the CDI boxes, it might interest you to learn about the internal workings of your CDI ignition. Fr), Congo - Brazzaville (XAF If your cdi is working well, you should not hear any sounds. You should see a reading of between 0.5 and 2 ohms. - Geeky Engineers Wed. Jul 12th, 2023 Connect the Black probe of multimeter with ground. Visually inspect the CDI box for any physical damage. For replacement find that one which exactly matches your bike. The ignition stop switch grounds all excess voltage. Copyright ToolsGaloreHQ 2023 ), Guatemala (GTQ How To Tune A Dirt Bike Carburetor | Simple Steps, Can You Add Electric Start to a Dirt Bike, How to Start a Mini Bike Without a Pull Cord, How to Put Lights on a Dirt Bike Without a Battery, How to Adjust a Carburetor on a Dirt Bike. S/. CDI Circuit using an SCR, a few Resistors and Diodes. ), Bosnia & Herzegovina (BAM (Or put another way - how to startup a motorcycle in a MacGyver style.) In U.S. Patent 609,250 first filed February 17, 1897, Tesla writes 'Any suitable moving portion of the apparatus is caused to mechanically control the charging of a condenser and its discharge through a circuit in inductive relation to a secondary circuit leading to the terminals between which the discharge is to occur, so that at the desired intervals the condenser may be discharged through its circuit and induce in the other circuit a current of high potential which produces the desired discharge.' In this article, I will explain in detail the CDI and how to test The CDI box with a multimeter. To test your CDI, you engage in both cold testing and hot testing procedures. Fr), Serbia (RSD Testing CDI using Multimeter the Cold Test. Thanks so much for such encouraging words. ), St. Pierre & Miquelon (EUR P), Brazil (USD $), Morocco (MAD $), Bahrain (USD Most new bikes come with a kill switch as a standard feature. $), Morocco (MAD for more. However, this should only be done in an emergency as it can damage the engine. We have tried to every aspect of the topic and look for more and try to add those in the next update. I checked it by the service manual. ), Botswana (BWP While measuring voltage, crank your bike for few seconds. Disconnecting this from the motorcycle should not be too difficult. When this coil becomes positive, the charge is directed to the forward biased diode till the capacitor gets fully charged ( usually after 3 to 4 magnet rotations). Place your scooter on the main stand and make sure it's secure. Check the red wire on the stator. How To Test The CDI Box With a Multimeter? 3 Easy Steps ), Rwanda (RWF $), Uruguay (UYU Thats because you can avoid the cost of having to re-print and ship products that dont meet customer expectations due to a design flaw. Kawasaki 300 bayou two wheel drive was running and it just died put new stator pickup coil Cdi and coil and plug still no spark read more. . This will not only save the cost but also save time. The Voltage should be at least 150V DC. The Internal Operations of CDI :) skype: dcatoffm. Under the seat of your motorcycle, you will find a connector with a blue and white wire coming straight from the stator and going to the CDI box. The needle on the voltmeter should read 12 volts and the test light should light up. ), Finland (EUR Your multimeter should be in continuity mode before you begin the cold test. ElectronicsHacks > Tools > Multimeters > How to Test a CDI Box With a Multimeter? The CDI is usually connected with insulated leads and pin connectors. If one is not working other will work. In your automotive vehicle, the CDI is one of the most important components. You dont want to have to deal with the injuries linked to electrical equipment for failing to observe safety measures. Among the advantages of a CDI box is that it is not sensitive to shunt resistance. If theres power present, the voltmeter will register a voltage. First, connect the voltmeter or test light to the battery-positive terminal. Now Lets Learn How to Test a CDI Box with a Multimeter, How to Make a Capacitive Discharge Ignition Box, How to Test a Stator with a Multimeter (3-Way Test Guide). Just a quickie run through on testing you motorcycles coils and Ignition system - this was picked from Honda but it's all pretty universal -- For IC igniter . $), Turks & Caicos Islands (USD Fr), Croatia (EUR Experts recommend measuring continuity on the multimeter via the stator end instead of the CDI end. Next, touch the red multimeter lead to the positive terminal on the battery, and touch the black lead to the black/negative terminal on the battery. $), Libya (USD It was designed by Edward S. Huff with US patent #882003 filed July 1, 1905 and assigned to Henry Ford. So, if youre having a similar issue, you might want to check the CDI unit with a multimeter. Read More:>> Testing Purge Valve using a Multimeter, Here is the image we used above again as a reminder of the internal circuitry. Each make and model will usually have the CDI box located in a different place. Like wise, measure the resistance between white wire and. ), Australia (AUD When this happens, the bike will often run erratically or stall completely. ), Slovenia (EUR This unit is typically found underneath the seat. ), Botswana (BWP I can tell you from experience working with electrical equipment that safety and the dangers that come from not protecting yourself adequately can be very dangerous. Trying to see how to test a cdi box with a multimeter? Many riders believe that testing the CDI can help to diagnose problems with the bike. ), Burkina Faso (XOF The trigger tells the box to fire, the box determines when to fire which coil with the capacitors, and zap goes the spark plug, ad infinitum. I wouldnt mind composing a post or elaborating on some of the subjects you Referring to the above capacitor discharge ignition circuit diagram, we see a simple configuration consisting of a few diodes, resistors, a SCR and a single high voltage capacitor. $), Sierra Leone (SLL Your multimeter should be set at 2k ohms resistance. L), Algeria (DZD The blue and white resistance should be between 77 and 85 ohms. Fr), Malta (EUR Le), Singapore (SGD ), French Polynesia (XPF Continue with Recommended Cookies. $), Sweden (SEK DR350 Rebuild #4 25 May 2020 in DIY Today lets have a chat about the switches - the kill switch and the ignition switch, exactly. ), Luxembourg (EUR ), Netherlands (EUR CDI consists of three main components named the stator, in which the engine charging system generates a low voltage electric signal sent to the trigger coil. $), Uzbekistan (UZS .), United Kingdom (GBP One thing that is often overlooked in checking the cdi for its health and functionality with a multimeter. $), Togo (XOF By now we hope that you have understood clearly how to test CDI box using a multimeter as well as its advantages and how the CDI box operates. If the multimeter reading changes when you touch the red lead to different terminals, then the CDI box is functioning properly. 2,242 satisfied customers. $), Bolivia (BOB ), Romania (RON Due to backfiring unburned fuel ignites in the exhaust system. ), Albania (ALL ), Philippines (PHP I've got a 139qmb gy6 in a scooter that I'm trying to troubleshoot. One source is a low voltage around 12 . ), South Korea (KRW The blue wire to white wire resistance should be between 77 and 85, while the white wire to the ground should be 387 and 487. Dan's Motorcycle "Electronic Ignition" A CDI box is used in motorcycles and other vehicles to store electrical energy and deliver it to the spark plugs to ignite the air-fuel mixture in the cylinders. ), Ghana (USD Measure the blue and white resistance; it should be between 77-85 ohms and the white wire to the ground show be between 360-490 ohms. $), Suriname (USD ), United Arab Emirates (AED There are a few possible reasons for this: a blown fuse, a bad ground connection, or a faulty ignition switch. $), Svalbard & Jan Mayen (USD Fr), Cook Islands (NZD Save my name, email, and website in this browser for the next time I comment. Let it sit for at least 30 minutes to 1 hour to allow the internal capacitance to discharge. The minimum that should be use cut resistant and water proof mechanical gloves, protective and protective eyewear. How to tell my style of CDI? Piaggio no spark- CDI testing | Blog | Pedparts UK But the basic principle for a cdi to work is the same. ), Peru (PEN $), Austria (EUR USh), Ukraine (UAH You can check our learning section for more multimeter guides. All comments are moderated before being published. Fuzzy voltage signals could originate from a faulty blocking/forward diode. Fr), Western Sahara (MAD FYI the stator is made up of several coils. You may face a starting problem. We may receive a commission for purchases made through these links. .. Once the capacitor is charged, the pulse rotor sends a trigger to the SCR which, in turn, initiates a conduction process that discharges the capacitor immediately. Anatomy of an ATV: CDI Box | Scooter's Powersports If youre having trouble with your dirt bikes CDI box, follow these steps to test it and see if its the cause of the problem. Of course, before getting into your CDI, you want to be sure that there are problems with it. How to Test a CDI Box With a Multimeter? - ElectronicsHacks ), Sri Lanka (LKR ), Montserrat (XCD This is a fast and quick method than the cold test where you need to remove the stator. ), St. Kitts & Nevis (XCD $), Moldova (MDL How to Test CDI Box with Multimeter - Complete Guide 2023 - Mr Fix It Ca ), New Caledonia (XPF ), Norfolk Island (AUD Furthermore, understanding how a CDI box operates will aid you to take care better care of it by assessing any faulty symptoms displayed by your CDI box. If it moves, your CDI box might be fine. ), Eswatini (USD ), Guatemala (GTQ . Capacitor discharge ignition, also known as CDI is a trigger mechanism with coils covered with a black box equipped with capacitors and other circuitry. yourself? ), Wallis & Futuna (XPF To test your CDI box, you will need a multimeter. The brakes may need to be serviced.
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