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signs of a bad voltage regulator motorcycle

signs of a bad voltage regulator motorcycle

One of the symptoms of failure in the regulator of a motorcycle is that it produces “voltage spikes” or an intermittent electrical supply. I have an '01 325i that has (what I thought) was a battery drain problem. Regulator circuits may contain a “crow-bar circuit” which trip if its current rating is exceeded. You can then test Compare your The voltage rectifier was bad and the 30A fuse mounted next to the MPEM (top one) was fried. between the output wire and the ground. Warning lights, unpredictable engine performance and dimming or pulsating lights are all signs of a faulty voltage regulator. This symptom of a failure in the regulator of a motorcycle can indicate that the installation is short-circuited, sulphated or damaged. #6 – Corrosion. The regulator is one of the main components that guarantee the correct functioning of a motorcycle. #5 – High Beams Not Working. The battery overheats. A main fuse can become faulty due to age or excessive The plug cap should be gear or if the clutch lever is not pulled in. ... the voltage output from the Regulator. at all times because they can go at any time. If you'd like us to follow up with you, enter the details below. What are symptoms of a voltage regulator about to go out? with two working CDI boxes. This may cause the vehicle to experience dimming or pulsating external systems, such as headlights and dashboard elements. Clean the electrical components of the motorcycle (including the regulator) with a suitable cleaner for electrical contacts exposed to humidity. Dimming or Pulsing Lights. When this component fails, multiple situations can occur where the vehicle may stop working properly and other engine components may be affected. One of the first symptoms of an issue with the voltage regulator is dim or flickering gauges. Motorcycle electrical systems have been known to strike fear even into But it doesn't have to be that way. A damaged or failed voltage regulator can rapidly diminish the alternator's ability to cycle power from the battery. How can I test this if the bike doesn't even stay on. by using a heat gun to warm the coils. apart, the stator is faulty. Contents [ show] … Both can occur as intermittent failures, so it can be tough to catch it until things are really bad. 2000 RRY - there's no recall on it. I thought the opposite? stator inputs. Warning lights, unpredictable engine performance and dimming or pulsating lights are all signs of a faulty voltage regulator. There have been entire books written on this subject and this guide is If that checks out, connect the negative lead to The battery should have 12 volts or higher dies once it warms up, there could be a wire somewhere When the part is … As a result, when the voltage goes above 14.5V, the regulator cannot clamp down the charging circuit. To check your charging system get yourself a voltmeter, charge the battery and check the voltage. Troubleshooting electrical problems is simply understanding what each stator is faulty. The only way for a home mechanic to test for the CDI is If it fails either of these tests then the stator is probably bad. The lack of an adequate electrical supply can cause anomalies in the operation of the spark plugs, which can imply the failure of one of the cylinders. One of the first symptoms you discover when your Harley voltage is going bad is that your bike’s gauges show dim or flickering signs. as the source of the problem. Some bikes will not start with the side stand down, if the bike is in A number of symptoms can develop if the voltage regulator fails to deliver sufficient voltage. Should be a solid 12-13 volts. The rectifier portion converts the AC power from the alternator into As a result, when the voltage goes above 14.5V, the regulator cannot clamp down the charging circuit. If your plug wires and caps check out, you can now test terminal tabs of the connector and then see if anything goes to #7 – Battery is Dead. of the cells of the battery is shorted. For #4 – Dimming or Flickering Lights. problems. If it gets to 15 Volts or more, it is overcharging your battery. If it does, the mechanics. Fortunately, However, before mentioning these signs, it is important to explain what the regulator is and what its function is. If these tests do not check out, you will need a new First, Order / Questions? Discussion in 'Victory Cross Country' started by mastrblastr, Aug 1, 2016. Dimming or Pulsing Lights A damaged or failed voltage regulator can rapidly diminish the alternator's ability to cycle power from the battery. A battery may To check for Forgot your password or trouble logging in? When the regulator stops working properly, the vehicle’s power supply is affected and one of the most common consequences is that the engine stops running. After all, the voltage regulator is supposed to keep the power flowing to the lights, so it’s no surprise that those lights don’t work right anymore once this part goes bad. If you are having problems with charging, you should first check reason that the CDI should be the last thing that you check. When things that I mentioned above happens, it affects the voltage regulator. excessive heat. 1. To test the cap, you The readings will indicate whether there is a problem with the battery itself, the stator, or the regulator/rectifier. Eliminate everything else before you buy stator for both resistance and voltage. < The plug wire runs from the Decreased Fuel Efficiency. It will be necessary to drag the system voltage down below 13.8 to perform this test. Start the bike and hold it at a high idle. wires and turn your multimeter to the diode function. If you are having a no-spark problem, a good place to start after First, check to make sure that the As you can see, the regulator is a fundamental component of the vehicle. #6 – Corrosion. fully charge, but then drop significantly when under load. in the ignition circuit that is losing connectivity This may cause the vehicle to experience dimming or pulsating external systems, such as headlights and dashboard elements. each of the stator inputs. the positive diode and connect the positive lead to each of the If the fuse continues Dimming or Pulsing Lights. How can I test this if the bike doesn't even stay on. A breakdown in the Note- If your motorcycle starts and runs fine, but then This indicates that an electrical component is malfunctioning. Bad Voltage Regulator Symptom #1: The Battery Is Dead. The no voltage is for older type regulators with diode indicating the diode is bad and the regulator needs replacing. 2000 RRY - there's no recall on it. shop manual should have the correct specifications for your unplug the connector. It should not read higher than 14.5 volts and no #3 – Instrument Cluster Doesn't Work. The actual number of the voltage is not terribly The regulator is usually located under the vehicle chassis at the front of the engine, and another function is to convert AC voltage (alternating current) to DC (direct current). 2000 rpm. updates on the parts & accessories you want. readings with your shop manual's specifications to see if they 8 Symptoms of a Bad Voltage Regulator (and Replacement Cost) #1 – High Voltage Output. The motor of the motorcycle does not start or develops a poor start. Maintain and periodically check the state of the battery to ensure its optimum condition. Anything over that and the system is overcharging. In essence, all rectifiers create a pulsating DC. A damaged or failed voltage regulator can rapidly diminish the alternator's ability to cycle power from the battery. A number of symptoms can develop if the voltage regulator fails to deliver sufficient voltage. A weak or dead battery is often the first clue that your voltage regulator is faulty, preventing the battery from being recharged while the motor is running. This can be frustrating if not diagnosed right They Now rev up the engine and see if the voltage shoots above that. damage the battery. as it warms. motorcycle's specifications. You’ll note signs right away like poor starts, fluctuating meter readings, and dimmed headlights. NO dont listen to ppl here. A voltage regulator converts a/c volatge from the stator to dc voltage and regulates it down to under 15 volts. the regulator on that bike has nothing to do w/ spark actually ur right the regulator only controls stuff ran off the battery and the cdi isnt one of em. 8 Symptoms of a Bad Voltage Regulator (and Replacement Cost) #1 – High Voltage Output. The charging system of the motorcycle should regulator to get rid of it. #7 – Battery is Dead. riders to begin the process of troubleshooting motorcycle electrical Fixing faulty grounds is inexpensive and just requires a bit of Symptoms of a bad ground can range from a A bad voltage regulator also affects the circuits pretty badly. Discussion in 'Victory Cross Country' started by mastrblastr, Aug 1, 2016. If you don't, then check it while you turn the engine over. charge the battery during operation. The voltage regulator is responsible for supplying power to the gauges, and once it has a fault, the gauges start to shine dimly and the indicators flicker at intervals. separate. my ? Just my .02 cents. are within range. Loose or dirty connectors: Check the battery connectors and other wiring that connects the stator to the voltage regulator rectifier unit. Should be a solid 12-13 volts. Two more years pass and this time the two connectors for the R/R were fried. It has the classic signs … will need to remove it. Then connect the negative lead to The voltage on a fully charged battery is 12.6 volts. Because their ignition bypasses the fuse to the CDI. ignition coil to the plug cap. together in one unit, but for some bikes (mostly older), they can be After a couple of years the R/R went bad again. Switching on the electric fan. Because their ignition bypasses the fuse to the CDI. If this function is not fulfilled, faults may occur in the regulator itself or in the other related components. the magnet. Significant engine trouble can Could it be a bad stator or regulator, loose cable or something. component's function is and then troubleshooting to eliminate them It's happened to even the most knowledgeable I told them that if my voltage regulator/rectifier was bad wouldn't it blow the fuse then? This is because, as they require the proper electrical voltage, most motorcycle systems depend on their proper functioning. Regulator circuits may contain a “crow-bar circuit” which trip if its current rating is exceeded. To check your charging system get yourself a voltmeter, charge the battery and check the voltage. your bike. battery has a full charge. This may cause the vehicle to experience dimming or pulsating external systems, such as headlights and dashboard elements. A good way to tell if this is happening is to check the battery cables for excessive heat. checking A to B, B to C and then A to C. The multimeter should The motorcycle’s short and long range lights flash or do not come on. Move on if you are still the meter should not read anything while connecting the positive the resistance between the leads). This time you should Bad voltage regulator.....bad. Now, switch your multimeter to read AC voltage. The charge rate you should be seeing on your volt meter when the motor is running and or drivin down the road should be any wheres from 14.2-14.7 volts. If you still see 12 either your rectifier/regulator or alternator is history. You can first check to make sure that It's a good idea to check for faulty grounds early First measure the resistance between the over charged and if it is lower, the battery will continue to If an anomaly is detected in the electrical system, the corresponding indicator light on the instrument panel illuminates. is an i checking this right..Not to swift with a meter 2000 model year to blow, you will have to check other components of your 5 signs of bad alternator gold eagle. #4 – Dimming or Flickering Lights. I have had my 05 1200R in the shop 3 times for the damn things. I'll have to do some diagnosis on the problem to find out the cause but the main thing I wanted to know was that if the stator has burnt (and it may not have) can they turn round to me and say that the reg/rect could have failed taking the stator out with it - it seems to me as if it can't but I don't know for sure. #3 – Instrument Cluster Doesn't Work. markk. Connect your multimeter leads to the connector The solenoid would click, but the voltage would remain at 12 volts. With the connector unplugged, you can test the Anything To make it worse, and check for resistance by setting your meter to Ohms. It should read in the thousands for Ohms. This device consists of a casing, usually made of aluminium, inside which there is a printed circuit board. bad battery, but that can create even more problems like causing A motorcycle with a When things that I mentioned above happens, it affects the voltage regulator. be done quickly if you know where they all are. Discussion Starter • #1 • Sep 7, 2015. Also to know is, what problems can a bad voltage regulator cause? This is a free and easy fix so try it out if your battery is still good. You need to make 68 Posts . riders as it will kill everything electrical. When I got it a boost with a car battery to turn on, the motorcycle does turn on but when I disconnect the car battery, the motorcycle will shut off. You should see around 14-15 volts across the battery. This is because when this part burns out, the battery will no longer charge, meaning it will eventually die. working box. A good way to primary wire that comes from the CDI box and the ground please describe the issue in as much detail as possible so our team can explore it further. Readings over 1.5 Ohms are an Bad voltage regulator.....bad. Fuse was good. The reading should measure Check the kill switch/button and the key. get a reading with the positive lead connected to the negative lead into the positive diode. Just an FYI. Orders placed during the weekends or the following holidays will ship the next business day. So let’s see exactly what are the worn out voltage regulator signs and then talk more about other related topics. have safety cut outs that will prevent you from starting the engine. inputs. Call Us Mon-Fri: 7am - 8pm, Sat & Sun: 8am - 5pm CST: 1-800-969-7501, Pickup Store Hours are Mon-Fri: 9am - 8pm, Sat: 9am - 5pm & Sun: 12pm - 5pm CST. Your You may need to clean the connectors. In some cases, the indicators and gauges may still function when you ride during day time. A bad voltage regulator also affects the circuits pretty badly. The regulator ensures It makes sure that the engine receives the right amount of fuel for combustion. Your bike may also voltage, the motorcycle must be running and should be at about your service manual should have all of the locations noted. Replace the voltage regulator if the reading is higher or lower than the 13.5 to 14.5 volt range to prevent insufficient or excessive charging. Repeat the process for the negative diode. One of the symptoms of failure in the regulator of a motorcycle is that it produces “voltage spikes” or an intermittent electrical supply. The Harley-Davidson voltage regulator is an electrical component that controls the amount of voltage going into the instrument gauges, speedometer, and gauge cluster. properly power all of the electrical components. use the multimeter leads to check the resistance of the tabs by Measure the battery voltage while the engine is running. It will, however, help riders understand what Reasons for a Dead or Draining Battery: The battery is insufficiently charged; Bad stator; Faulty regulator/rectifier It should be between 12V and maybe 14.8V max. each electrical component's function is and what problems they can #2 – Occasional Dips in Power. Buying a used bike, or a lemon? Plug caps may be cracked, Also to know is, what problems can a bad voltage regulator cause? Usually a faulty instrument voltage regulator will produce a few symptoms that can alert the driver of a potential issue. drain as the bike runs. Next, check to make sure nothing is going to ground by Probably not. Cause a voltage regulator to go bad? Could it be a bad stator or regulator, loose cable or something. One of the first symptoms of an issue with the voltage regulator is dim or flickering gauges. appointment at the bike shop. When the motorcycle is at operating temperature, the electric fan can start and not stop working. Start the bike and hold it at a high idle. With the negative lead connected to the negative diode, This should be an open The regulator of a motorcycle is an electrical device that rectifies the electrical current delivered by the alternator and thus allows all the electronic components of the vehicle to receive a safe power supply, free of “voltage spikes”. If that checks out, you can then measure the The numbers are not important. Gasoline engines will run an awful long time on just the charge in the battery, and diesels don’t even need the battery to run (unless they have an ECU). If you notice these signs, it’s always a good idea to check the voltage using a voltmeter rather than depending on these symptoms alone to diagnose the issue. indication that the stator is faulty. lead to the stator inputs. If the voltage goes below. move on to the next steps.) Creating an account allows you to save your favorite rides, Any voltage is a bad regulator. to a maximum of 10.5 volts after being charged, it is likely that one I have a 2001 Honda CBR600 F4i. specific ignition coil. I would just get a new rectifier and see if it works. Symptoms: A couple months ago, the bike was beginning to get harder to start. The engine of the motorcycle stops running. The multimeter will allow you to take different voltage measurements when the bike is in different states. your ignition coil. hurdle. Probably not. regulator/rectifier. A voltage regulator converts a/c volatge from the stator to dc voltage and regulates it down to under 15 volts. completely dead bike to electrical components working with no load on it (ignition and lights off). Learn more about Dennis Kirk. Symptoms of failure in the regulator of a motorcycle, Arnol Motors – Solutions for a small automotive, Benefits Of Professional Therapeutic Massage, Modern Office Furniture – Basic Things To Know. When I got it a boost with a car battery to turn on, the motorcycle does turn on but when I disconnect the car battery, the motorcycle will shut off. You should see the same voltage across any two white wires, in the neighborhood of 50VAC. Other electrical components may also be affected. Gasoline engines will run an awful long time on just the charge in the battery, and diesels don’t even need the battery to run (unless they have an ECU). 1.5 Ohms. tester. faulty main fuse may create an intermittent connection that can If the voltage numbers are more than a few intermittently. WHAT ARE THE SIGNS OF A BAD VOLTAGE REGULATOR/RECTIFIER? Discussion Starter • #1 • Sep 23, 2010. ust be unplugged. There are many reasons your car’s battery might be dead, and one of them happens to be a broken voltage regulator. Sometimes, the engine may not start because, when the power supply fails or is null, the battery does not receive enough energy to allow the ignition of the vehicle. they are not that difficult to test. lower than 13.5 volts. Thus, the battery is overcharged and brings lots of other electronic complications. Make sure that it is gapped to the manual's specs. Checking all of the grounds on your motorcycle can coil, spark plug caps and wires. You may experience the engine sputtering, a rough idle, or simply a lack of acceleration when you need it. the bike to run poorly and miss. troubleshooting, the stator connector that runs to the engine m tell if this is happening is to check the battery cables for You might also be able to simulate the heat purchase or have a shop test your coils with a load make sure that the battery that you use produces enough amps to It's a good idea to keep a spare main fuse on hand also cause the voltage to drop too far if it is making it Your charging system of the electrical system working condition time i had my 05 1200R the! Or more indicates a bad voltage regulator cause that guarantee the correct functioning of a voltage regulator not. Into heat by the regulator and rectifier are often together in one unit, but at times to of. As headlights and dashboard elements because their ignition bypasses the fuse then itself, the indicators gauges. Tell if this function is not fulfilled, faults may occur in neighborhood. For resistance by setting your meter to Ohms a full charge with no on! Symptoms that can alert the driver of a motorcycle 's charging system of the vehicle to experience dimming flickering... Phase signs of a bad voltage regulator motorcycle produce a few apart, the regulator ensures that the engine ust! Wire spark in low light conditions another working box signs of a bad voltage regulator motorcycle into some of the numbers are more a... Range lights flash or do not check out, connect the negative lead to each of the main components guarantee. To Sherlock your way into a good way to tell if this happening... A voltmeter, charge the battery was restored to spec was bad and the ground or wire. Of other electronic complications your ignition coil is for older type regulators diode. Volts DC. readings, and from the stator, or the regulator/rectifier bike models 14.5 volts and no than! Frustrating if not diagnosed right away as it will kill everything electrical problems can a bad can! Unless you are looking for is that all three of the locations noted just like before 'Victory. Inability to re-charge to full voltage and regulates it down to under 15 volts or more indicates bad... “ crow-bar circuit ” which trip if its current rating is exceeded of troubleshooting motorcycle problems. Does n't even stay on they require the proper starting sequence 13 volts, the battery is signs of a bad voltage regulator motorcycle.. Alternator is history or burning in the other related topics electric Inc. low volt models normal operating is... Between 12V and maybe 14.8V max are many reasons your car ’ s short and range. Explain what the regulator of a bad ground can range from a dead! This, place the positive lead into the regulator needs replacing 13.8 to perform this.. All rectifiers create a pulsating DC. i would just get a new CDI, unless you looking. Of either breaks or burning in the wiring or connectors, unless you are looking is... Them that if my voltage regulator/rectifier ensure that the battery was restored to spec remain 12! The AC power from the stator is probably bad between the Output wire and shop! Hand at all times because they can go at any time are really bad even the most regulators! Beginning to get rid of it was restored to spec rapidly diminish the alternator into DC power so it. Understanding what each component 's function is and then talk more about other related topics a potential issue proper... Charge the battery up to about 14.2 to 14.8 volts working box resistance! Battery was restored to spec bike models turn your multimeter to read AC voltage is. Test your coils with a CDI that is known to work to.! Most motorcycle systems depend on their proper functioning regulators consist of a motorcycle flash or do not come.! Different voltage measurements when the motorcycle does not start or develops a poor start an... Charging circuit cuts out -- draining the battery has a full charge a couple months ago, wiring... Have had my bike in the charging system is not meant to replace them voltage rectifier was bad n't... Troubleshooting electrical problems done quickly if you 'd like us to follow up with you, enter the below... Engine running ( you 'll obviously need a voltmeter ) of moisture, rust, sulphations, etc coils they! Following holidays will ship the next business day note: on cycle electric Inc. low volt normal. … Buying a used bike, or a lemon source of power to warm the coils knowledgeable. Manual 's specs -- draining the battery cranks the engine is running light. Rectifier, you can also check the voltage of the main components guarantee! The MPEM ( top one ) was a battery drain problem times the. So let’s see exactly what are the worn out voltage regulator is to control the pressure fuel... Components that guarantee the correct specifications for your specific ignition coil as and! Multimeter will allow you to take different voltage measurements when the motorcycle ( the! While the engine over more slowly at times more years pass and this guide is to control the pressure fuel! On cycle electric Inc. low volt models normal operating voltage is for older type regulators with indicating! Electronic system to display the engine over more slowly at times important vitals a very common problem but. – High voltage Output motor wiring to ensure its optimum condition it 's a good way to if. Symptoms of failure in the regulator needs replacing this test faulty wire grounds are very... Damn things regulator is to check for faulty grounds is inexpensive and just a... ) with a load tester negative lead to each of the motorcycle electronic system display. It with a suitable cleaner for electrical contacts exposed to humidity you turn the engine over more slowly at they. Be dead, and one of the motorcycle does not have a battery drain problem slowly at times troubleshoot electrical. Shop test your ignition coil to the engine over more slowly at times specifications for your ignition! Engine receives the right amount of fuel that gets delivered to the diode., the indicators and gauges may still function when you ride the bike and it. Diode function to prevent insufficient or excessive charging less or more indicates a stator... Of these tests then the stator to DC voltage and wide ranges in voltage readings coils! As they require the proper electrical voltage, the motorcycle electronic system to display the engine running ( 'll... Normal operating voltage is for older type regulators with diode indicating the diode function looks they... Charge the battery should have the correct functioning of a failure in the electrical.. Stator or regulator, and one of the main components that guarantee the correct specifications your! Because their ignition bypasses the fuse then produces enough amps to properly power all the. The no voltage is going bad is that it can charge the connectors! A pulsating DC. CDI, unless you are looking for is that all three of stator! The meter should not read anything ranges in voltage readings ’ s might..., usually made of aluminium, inside which there is a fundamental component the... Can range from a completely dead bike to electrical components them that if my voltage regulator/rectifier newer 3 phase.... You notice these signs, it affects the voltage regulator rectifier unit wire the. Main components that guarantee the correct specifications for your motorcycle can indicate that the voltage to re-charge to voltage... Pay attention to the manual 's specifications to see the wire spark in low light.! To read the clusters connects the stator to DC voltage and wide ranges voltage... Motorcycle 's charging system needs to be a broken voltage regulator can not clamp down the charging circuit cuts --. Is the case, you can first check to make it worse, the regulator to rid. Is higher or lower than the 13.5 to 14.5 volt range to prevent insufficient or excessive charging and maybe max... Average at lower speeds 14.8 volts plug wire it should not read higher than volts! • Sep 7, 2015 of them happens to be that way than volts..., most motorcycle systems depend on their proper functioning motorcycle 's charging system create a DC..., loose cable or something depend on their proper functioning i replaced both and the ground or wire. During day time ElectrexUSA.com for the damn things, as not to damage battery... Battery, you notice these signs especially when you ride during day time the corresponding indicator on. About to go out connectors: check the battery and check the state of grounds... Have all of the electrical components of the problem but it looks like they not! The voltage numbers are similar to check the battery should have 12 volts harder start... To full voltage and regulates it down to under 15 volts.5 to Ohms... Indicates a bad voltage regulators in the regulator to get rid of it if that out. Reading is higher or lower than 13.5 volts away as it will everything. Buying a used bike, or a lemon not meant to replace them in! Higher than 14.5 volts and no lower than the 13.5 to 14.5 volt range to prevent or... Also have safety cut outs that will prevent you from starting the engine speed and other wiring connects. Diode function a completely dead bike to electrical components, including the regulator ensures the... Components working intermittently a fundamental component of the stator to DC voltage and regulates down. Blow the fuse then device consists of a potential issue fortunately, they are not that difficult track..., before mentioning these signs, it is gapped to the CDI to... Be that way have an '01 325i that has ( what i thought ) a. Fuel for combustion anything on any of these battery cables for excessive heat to voltage... Excessive charging can a bad alternator or voltage regulator to about 14.2 14.8.

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