Symptoms Bad Voltage Regulator Generator

This voltage is directly connected to the Arduino 3. This time it should be at least 14. The engine is model 303447 and has two red wires coming off it,1 to ignition and 1 from the rectifier/regulator. I'm more of a construction guy and not much. Once the Generator is enabled by the ECM, the voltage regulator controls generator output independently of the ECM. 3V regulator will be destroyed and may allow current to flow backwards to the 5V node, and then backwards further to the PC’s USB port. The generator voltage regulator increases the amount of current it produces, raising the voltage back to it's proper level. Automatic voltage regulators are used on generator sets on ships, in emergency power supplies, on oil rigs, etc. Also, check the voltage regulator’s harness for resistance. Start your engine and read voltage. Check the golf cart on a hard, level surface and set the parking brake. Swap went fine but have not hooked up the charging circuit yet. The regulator/rectifier doesn't test right according to my Clymer manual or the Suzuki workshop manual, but I swapped it out and it made no difference. When the parts fail or begin to show symptoms of failing, it can have far-reaching implications to the viability of the automobile. 2nd symtpom - the voltage regulator on the dash starts going crazy every once in a while and when the volts drop, the battery light comes on. A common complaint we get here at Digi-Key comes from people who buy a linear regulator from us and then call in, telling us that they “got a bad regulator”. Plus to Plus. generator is a single-phase, reconnectable 120 volt AC two-wire or 115 volt AC two-wire or 230 volt AC two-wire, at 50 hertz. It had to do with measuring. Bad alternator or voltage regulator (But the regulator is built into the alternator). Most charging system problems will be corrected by performing the following steps. Mini Cooper S owners have reported 2 problems related to alternator/generator/regulator (under the electrical system category). The regulator looks to be aftermarket but not sure. When Generator operation is desired, the ECM sends a 5 volt signal to the voltage regulator via the generator turn on signal circuit. 2nd symtpom - the voltage regulator on the dash starts going crazy every once in a while and when the volts drop, the battery light comes on. can be captured simultaneously for comparison in the same time frame for energy management, losses & control Automatic Voltage Regulators(AVR’S) We also supply AVR’s which use the bad high or low incoming mains and correct this bad voltage to a safe, stabilised. These units can alert the mechanic to problems before, at, and after the. The manual said check cables, they are good. All grounds have been checked and cleaned to verify proper grounding. Quality PowerStroke Generator Parts From Repair Clinic. Bad Voltage Regulator Symptom #3: You Notice Engine Problems. section of your DIAGNOSTIC REPAIR MANUAL will familiarize you with the basic fundamentals of generator operation. Replaced voltage regulator, and it was fixed, 13. The original Instrument Cluster Voltage Regulator has been called by many names including, Constant Voltage Regulator (CVR), or Instrument Voltage Regulator (IVR). Open in exciter main stator winding. PROTECTION ENGINEER 11 YEARS EXP. Normal voltage spec at that point should be 13. NHTSA — Electrical System: Alternator/Generator/Regulator Problems. A bad voltage regulator can even affect your car’s engine. It is an non-repairable part and it must be replaced when it breaks. Before starting the bike, check your battery voltage with a voltmeter. 1 “How Generators & Regulators Work” Once you understand the basics of how a battery works and how it is constructed, we can move on to the generator, which is the second most important parts of the electrical. Yes - there is a history of regulator failures. 6v so what happens is the effective voltage in the system is being "weighed" down if there is an. As good questions draw good answers Note! Personal memo to myself. The electrical noise from the ignition and charging systems on these old beasts SERIOUSLY confuses all but high quality (read $$$$) digital meters. While functioning, the engine within a generator works at different speeds according to the output that needs to be produced. Even with no load the output only comes up a volt or so but no where near 12v. If a voltage regulator is bad, then the power sent to the battery will be jumpy and erratic. Generac 0G99240101 OEM RV Voltage Regulator 5. Wen 3500 Generator Section Locate the vented cover to the left of the Muffler and remove the two screws holding the cover in place. It’s always a good practice to check for any voltage drop when testing an alternator circuit before rushing in there and changing parts. I hope someone can helpme. Normally one is red and the other is black or white. To test a capacitor, it must first be removed from the generator and discharged. In an integral generator regulator system, the regulator set point is established by a temperature sensor in the regulator which estimates battery temperature. Service regulator or wiring as necessary. We go through only one test, a voltage check of the voltage regulator using the voltmeter of a multimeter. Then i had to tow it to the dealer to have it flashed and programmed so it would start. the symptoms are, the mower has a new battery, but cranks very slow. Not sure if it is a bad ground or a bad voltage regulator. 1 "How Generators & Regulators Work" Once you understand the basics of how a battery works and how it is constructed, we can move on to the generator, which is the second most important parts of the electrical. The bad alternator will also cause some unbearable noise from the car. 60 instead of 120 volt), then I would suspect a bad voltage regulator. Fixing generators that has no output voltage What causes generators to stop producing power/voltage? The most common cause of portable generators failing to produce electricity is from the loss of residual magnetism. Over or undercharging. Page 1 of 2 - Bad ground or bad voltage regulator. 5 volts from getting to the battery for charging purposes. The linear voltage regulator is the easiest type of voltage regulator. The regulator is compatible with many lawn and garden machines. Connect a variable output type battery charger to the battery posts, observe correct polarity. Replacement Regulator For 25-30 Amp Generator Systems Keeps Proper Voltage Flowing To The Battery Eckler's Classic Chevy brings you this quality replacement voltage regulator to replace the old, worn out or malfunctioning one under the hood of your Tri-five. EG4000 uses Honda's exclusive DAVR (digital automatic voltage regulator), the DAVR is designed to hold the voltage stability within a +/- 1% range during operation, this provides more consistent power. Edit : Upon reading more closely you may have a bad diode in the alternator. I've traced back all of the wiring and grounds, repolarized the generator. Plug in a light, turn on the generator breaker or switch and start the motor. It is likely, however that you have a voltage regulator failure, or worse yet a bad stator or windings. VOLTAGE REGULATOR CHECKS; POST VOLTAGE REGULATOR CHECKS. If your voltage regulator is a carbon pile regulator, you need to wire the generator so it can use it. For single phase alternators, the 6 diode bridge rectifier could be replaced with a 4 diode bridge rectifier as shown in the following diagram:. Anyone know the symptoms of a vaulty voltage regulator on a can am renegade/outlander 800 2008, think I might have one, is there a way to diagnose?? Yep^^ I had a bad voltage regulator on my boys 400 and it was sending 20+ volts to the battery. If the generator works, back to the regulator. During operation, a flexible diaphragm within the regulator moves back and forth in response to engine demand. Follow wires and/or use the wiring diagram. speedometer and tachometer fluctuations. Just completed an engine swap from a 12. Put in a new wire and check you may have a bad regulator. If the voltage is less than 13. Set the drill to run in reverse and start the generator. Thanks -Kirt. Therefore, to obtain a reliable 12 Volt output voltage, an input of 15V+ is required – more than a 12V battery produces even when under charge. Research indicates that this is a voltage regulator failure that is a weakness on 2012 touring bikes assembled between 10/2011 and 2/2012. I think the easiest way to identify a bad regulator is to check the battery with the engine running. The input voltage should be approximately the same as the bus voltage. Generac 0A2702 RV Generator Voltage Regulator - 20 Amp - Black. Test the alternators regulator with a full field test when the alternator has low output. Ground is simple try putting an extra wire from the battery to the alternator case. 4 V, then the alternator is probably working. GENERATOWVOLTAGE REGULATOR TROUBLESHOOTING This section contains troubleshooting informa- tion for the generator and its electronic voltage regulator. The problem is that it has a fairly high drop out voltage. When I checked it their is supposed to be six little plugs like on and electrical outlet. HERE is a diagram to help. After they flashed the new pcm it starts and runs now but the battery light is still on. Plug in a light, turn on the generator breaker or switch and start the motor. -Intermittent loss of alternator/generator charging (particularly when hot right after startup or unplugging and then plugging in the generator control connector). If you figured out the the IVR is bad, then replace it, bolt it in and then bolt the gauges back into place and drive the car. Poor AVR symptoms I found out that AVR may be an abbreviation for Automatic Voltage Regulator(AVR). Test the alternators regulator with a full field test when the alternator has low output. An automatic voltage regulator (AVR) is a electronic device for automatically maintaining generator output terminal voltage at a set value under varying load and operating temperature. I was at home replaced the battery again was checking the voltage it was all. What is an alternator in a car, alternator problems, symptoms, testing. Symptoms of a bad voltage regulator might include a dead battery, dim or pulsing dash lights, or erratic engine performance. The voltage regulator is on the end of the alternator, so replacing the entire unit will leave you with nothing left to replace. The input voltage should be approximately the same as the bus voltage. If the generator is putting out amps then the only problems you have if your battery is low, is the regulator, the shunt between the circuit breakers, dirty old connections, or bad battery. Alternator and Generator Repair and Diagnosis. The regulator is probably the most common failure in the 60 amp alternator. Just to double confirm the manual the regulator is bad correct?. Downside of this solution is that the generator runs at full load all the time which heats up the stator. In turn, this action causes the voltage regulator to stop modifying the voltage of the circuit. Troubleshooting/repairing a Kawasaki Bayou KLF300 ATV Electrical Charging System: These bikes are cool and virtually bullet proof. It could overwhelm the power used by the MCU when it's in a deep sleep mode. Re: Defective voltage regulator or something else? Thanks for the additional information on a grounding problem being the possible culprit. Symptoms of a Bad Voltage Regulator. 9 out of 5 stars 12. I replaced the voltage regulator with the less expensive one. If it is, and the alternator charges "full output" as before, then either the regulator is bad, or you have a bad connection in the regulator connector. If the voltage is lower, the battery may be weak and incapable of holding a full charge. Formal Definition – Voltage below 80 to 85% of rated RMS voltage for 2 or more cycles. Upload your own picture of the Mustang Voltage Regulator For 3G Alternators Please make sure to hold your device horizontally (like a camera) rather than vertical (like a phone). By uploading an image, you agree to give LMR. The LM317T is an adjustable 3-terminal positive voltage regulator capable of supplying different DC voltage outputs other than the fixed voltage power supply of +5 or +12 volts, or as a variable output voltage from a few volts up to some maximum value all with currents of about 1. Welcome kharma21 check the battery voltage and the starter brushes. I've got a 1999 honda foreman 450. A bad capacity will result in a low voltage reading from the generator as the power being generated will be from the residual magnetism of the rotor (usually about 2-5V). I've had this setup on my Model B for a few years and am very satisfied with the performance. A voltage regulator maintains an even flow of electrical power to an automobile's electrical systems, including the headlights, dashboard components and the stereo. Normally one is red and the other is black or white. 5VDC and 14VDC If this is true then your charge system is OK. Solve many power-related problems with TSi Power’s rugged Static Voltage Regulators with Precision(VRP). There's a variety of reasons why a voltage fluctuation may occur: condition of the power grid, other appliances turning off and on, time of day, environmental factors, etc. If Battery voltage is low and the charging rate is low, or there is no charge at all, make these tests:. If this voltage is not present after polarizing, don't bother with any other tests- - - - -you've got a bad generator. If the battery voltage reads somewhere between 13 and 14. **If you see results above 15 volts then you likely have a bad regulator. I would look into the wiring closely -sumpthin' ain't right Lucy. Drops in electrical output from a failing alternator can cause these systems to malfunction, leading to a poorly running engine. This causes the voltage regulator to begin controlling the generator field circuit. Great forethought on Rick's part!. The voltage regulator provides power to the gauges, and can cause it shine dimly or flicker if it has. When you load down the battery more so, the regulator will now tell the generator to charger harder and at a little higher voltage. BTW: if you can detect AC at the alternator, it means the diode pack is bad, not that the voltage regulator is bad. Mini Cooper S owners have reported 2 problems related to alternator/generator/regulator (under the electrical system category). I suspect the regulator of bad. This is almost always a bad voltage regulator (AVR). If voltage surpasses 14v or so your regulator is not regulating voltage properly (will kill battery and other electrical components). Pull this on a 3 brush generator and the generator can run up to 18 volts. The following symptoms should give you an idea of what's gone wrong, but if you're still not sure, you can always bring your vehicle to Advance Auto Parts for a charging and starting system test. Many Guardian Brand Standby Generators. now, i was wondering if my voltage regulator could be bad. Can you describe the symptoms more (like is it cranking slower now), and also confirm that this is the stock Mopar electrnoic ignition system that. YourMechanic. 5 volts at 2000 - 3000 RPM, I would look at something besides the voltage regulator. Touch the + lead to the generator ground screw and then the voltage regulator base. Ground is simple try putting an extra wire from the battery to the alternator case. Using their controls and monitoring voltage output with a voltmeter, you can adjust the voltage on a portable generator to meet your power needs. Last fall battery quit charging. The regulator should be included as part of the whole assy if you purchase an entire alternator. 2 volts at idle and increase when the motor is revved up to around 14. The output voltage of alternator must be at a level that is capable of compensating for battery draws from electrical components including the starter, lighting and various other accessories. On the other hand, if you do see this modest rise at low rpm, most likely all is well and the run-up will produce 13. Symptoms of a Bad Voltage Regulator. (c) T u r n on the ignition switch, but do not start car, check fo r battery voltage at the w i r i n g harness. The connector to my voltage regulator wasn't completly snapped in, and it came off while driving down a bumpy road. Yours may have the battery voltage from the ignition switch going to the discharge lamp instead of to the regulator. If you add two diode series with the output to reduce voltage start with 0-volts. Poor AVR symptoms Home. It controls the field in exactly the same way as the voltage regulator, but based on current, not voltage. Once I cranked back up and realized what was happening it was showing 17. (The generator does only some circuits not entire house) A qualified Generac tech determined that the voltage regulator was faulty. Often mentioned then talking about generators. The challenge with them is that a single voltage does not meet the power requirements of all these needs, and too much voltage can cause failures in equipment and even fires. The voltage regulator on a Kohler engine is responsible for providing a smooth electrical charge back to the battery from the stator. I bought a used MH with an Onan BGE spec J generator. The alternator went on it last week so i replaced it with a reman that turned out to be bad, it had low voltage coming out of it when i tested it (3. I first knew I had a problem when my battery wouldn't charge. Regulators are all solid state these days, so they are pretty much either alive or dead. Or a bad wiring connection. The Voltage regulator is a critical part of your charging system. The aforementioned TPS79933DDC needs 40uA for itself; which is not bad at all, considering a plain 7805 needs ~7mA :) Of course, this might not be a problem for your application. You need to ensure that the unit is running at 60Hz. If the voltage regulator, brushes, and armature are OK, it should take off and start producing output - and continue producing output as long as it is running. Symptoms will be rough idle, misfires, poor acceleration, hesitation and stalling. I would bet that your problem is a bad voltage regulator. 3 volts even with full load, like lights, heater blower, and everything else, running. Bad ground cause alternator to output low volts? Ask Question Asked 2 years, 11 months ago. It is likely, however that you have a voltage regulator failure, or worse yet a bad stator or windings. This means that they stop sending current/voltage to the slip rings when that voltage is reached. What can and does happen in some cases is that you will fry the PCM. - - - Greg asks: I have a 1991 E-Z-GO 2-cycle golf cart that will not charge its battery. Last time out in the boat my voltage guage would hit the peg at 16 volts when the engine was wound up over 3500 rpms. We service and sell all makes and models of voltage regulators and generator cutouts from the early twentieth century, up to present day. Our Mercury Outboard Voltage Regulators are at the lowest prices and same day shipping!. If your voltage is higher, replace the regulator or check the sensing input from the hot generator leads. Usually a faulty instrument voltage regulator will produce a few symptoms that can alert the driver of a potential issue. The engine may be powered by Gasoline, Diesel, Natural gas or perhaps Steam. Measuring the Input Voltage. chapter 3 generator excitation and voltage control 3. Must use a multi-meter and not the on-board meters to rule out bad on-board meters. If after doing this brush trick doesn't fix the problem, then you probably have a bad generator. Bad rectifier? I tried to read the voltage which shows 13. The manual said check cables, they are good. If the voltage out of the generator is less than a "cut in point", (tractor not running or tractor is just starting up at low RPM's) , do not connect the regulator to the generator. I've done some testing and it points to a bad voltage regulator, but I'm uncertain how to test the VR by applying 12v through a diode. 6v so what happens is the effective voltage in the system is being "weighed" down if there is an. Once I cranked back up and realized what was happening it was showing 17. If this doesn't work ohm all the small wires from the regulator you may have a bad wire. Also, check the voltage regulator’s harness for resistance. The LM350 voltage regulator is 3A DC adjustable power supply, high-performance. I would also go to a shop that can do a real load test on the alternator. If the voltage stays a strong 12-volts, the issue is a dead spot on the armature in your starter generator and will need to be replaced. After they flashed the new pcm it starts and runs now but the battery light is still on. Wire 14 controls the fuel pump, the hour meter, voltage to the overheat sensor, the run light on the console inside the coach (generator run light means you are getting voltage on wire 14) and finally, it provides voltage to the AVR (Automatic Voltage Regulator) and here’s the connection to the alternator not producing any AC. An automatic voltage regulator (AVR) is a electronic device for automatically maintaining generator output terminal voltage at a set value under varying load and operating temperature. i have tried to jump it with a truck, but the mower still cranks slow like a battery running out of juice. There are many reasons for the voltage regulator in your golf cart to not behave as expected. This means that the voltage regulator is stuck in the closed position. Alternator (generator) puts out voltage depending on rpms, the higher the rpms the higher the voltage. Desperate! 1966 Mustang Fuel Gauge - Constant Voltage Regulator I have already posted an embarrassing amount of threads about this to no avail. Watch the video to follow Jonathans diagnostic process. The purpose of the generator voltage sense circuit is to monitor the alternator and battery voltage during vehicle operation. 10-SI Series alternators were introduced in the early 1970’s and are available in 37, 42, 55, 61, 63, 70 and possibly 85 Amps. And an Auto Voltage Regulator this generator is a must have. so all the regulator does is dump excess current to ground to keep the voltage in check. (but you will probably see the voltage drop instead of raise, and you will be doing the other test shortly anyway. The challenge with them is that a single voltage does not meet the power requirements of all these needs, and too much voltage can cause failures in equipment and even fires. It just amazes me that this does not get inspected and changed. Check for the proper AC voltage going into your regulator/rectifier. 1 "How Generators & Regulators Work" Once you understand the basics of how a battery works and how it is constructed, we can move on to the generator, which is the second most important parts of the electrical. I'm thinking bad ground is frying the regulators. I thought the opposite? When the part is done, it won't let through any. In the old days, the generator/alternator was only good for a few tens of amps at idle (if you were lucky) and there wasn't much that was sensitive to overvoltage. C generator voltage within plus and minus 1% of the preset value with paralleling. The regulator is compatible with many lawn and garden machines. If you get 14. "Like" Quantum Mechanics Performance and Fabrication on Facebook for Audi Fox Quattro updates and other project developments. * Gut feeling - based on symptoms and your measured 135 ohms brush to brush - is that the voltage regulator is probably bad. 0 out of 5 stars 1. I believe these new trucks have the voltage regulator built in or I would suspect that was bad. The voltage regulator on a Kohler engine is responsible for providing a smooth electrical charge back to the battery from the stator. Start the engine and carefully check voltage again. Any problems with your alternator or voltage regulator? Is it the voltage regulator or alternator that is causing the issue? Need to know about Honda voltage regulator? Get answers to all your questions about Honda voltage regulator problems by asking Honda Mechanic Experts on JustAnswer. An AC wiring decal is affixed to the inside of the louvered cover at the generator end. When the load varies between no load and rated load and with a frequency changes […]. Typically you will have an extemely high voltage reading if your voltage regulator is bad, From what you described, I would lean towards the problem being your stator since the stator produces over 15-17 volts when operating correctly, the regulators job is to absorb the extra voltage and reduce it to 13. These sensing wires measure the actual battery terminal voltage and allow the regulator to drive the voltage at the battery end to the correct point. If the voltage regulator, brushes, and armature are OK, it should take off and start producing output - and continue producing output as long as it is running. Several trips prior to that everything was normal, but one trip back in June I had some funny voltage reading also. It comes looking as close to the original as possible, with the factory correct blue cover with Autolite stamping in yellow, and using original style rivets. If you have an idiot light an induction ammeter costs 8. Hope that helps,. Either I have a bad battery or the voltage regulator on my 1990 Johnson 150 is on the way out. If the voltage exceeds 9V, the 3. 5 (75% charge) to 12. 5 volts) on the wire going to the battery (at the connection to the regulator), the voltage regulator is the only thing left and is probably bad. A bad regulator will cause your battery not to charge. Bad Voltage Regulator Symptoms. A style or B style, forget which it is, but with a carbon pile regulator, the regulator is a resistor on the field ground lead. The numbers on the displays, or the needles, may change rapidly or cut on and off erratically. We can start guiding you from there. Unplug the two wires that connect to the generator brushes. Hi, yeah done the search but most of the posts relate to stator failure warning signs which I know all about by reading the reference library (remember that old-school building in your local community with all the BIG HEAVY books - in the dark ages before people's thumbs/forefingers atrophied and all written text went online??!). red to red, black to black. but there is a better way to do the B circuits. If your voltage is higher, replace the regulator or check the sensing input from the hot generator leads. Post D will be the ground. Then, by the time the gauge finds the voltage has been altered, it reacts and is off to another setting (usually down) for next sampling. The amount of voltage that a generator produces, varies from type to type, making it essential to ensure the regulator falls into the range that can control the amount of voltage being generated. High Output Alternators built right in the USA. When charging is needed, the regulator applies battery voltage to the stator's brushes and this creates the electrical field for charging. Voltage regulators are commonly found in vehicles and other electronic equipment. One of the first symptoms of an issue with the voltage regulator is dim or flickering gauges. If Battery voltage is low and the charging rate is low, or there is no charge at all, make these tests:. The bad alternator will also cause some unbearable noise from the car. The challenge with them is that a single voltage does not meet the power requirements of all these needs, and too much voltage can cause failures in equipment and even fires. Internal voltage regulators also can fail from too much heat. Once the car is running #2 – Occasional Dips in Power. MX321 AUTOMATIC VOLTAGE REGULATOR (AVR) SPECIFICATION, INSTALLATION AND ADJUSTMENTS General description Technical specification MX321 is a three phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brush-less generator. Should you carry one? Not a bad idea. Two small wires go from these terminals directly to the voltage regulator (VR). Why such common failures. Regulator Generator Voltage Kohler F-228605 Pb3e Kit Oem Power Boost Marine Boat New Max - $440. Then connect it to your battery, start your motorcycle, and rev it up. The black wire (-) from the volt meter will hook to the solid brown wire on the sled. Solid State Generator Regulator True Field Current Regulation. The voltage regulator controls the amount of current provided to the rotor. Unfortunately the regulators mentioned above have quite a high voltage drop – typically up to 3 Volts. I have the dreaded "quits when start button released" symptoms. Great forethought on Rick's part!. Downside of this solution is that the generator runs at full load all the time which heats up the stator. This is almost always a bad voltage regulator (AVR). With the Sporter stopped and battery switched off, the voltage reads 12. 1 bad cell could stop the battery from charging. Voltage Regulators from Americas Generators provide protective features for the generator and safe controls for regulating the current. If it were dead my voltage readouts should never go above 12V I would think. After a good inspection, I think I found the problem. This information is worth repeating. This is a Generac GP3250 Generator AVR Voltage Regulator. If you do not have about the same voltage there as you did at the stator leads, then you have some bad wiring between the two. GENERATOWVOLTAGE REGULATOR TROUBLESHOOTING This section contains troubleshooting informa- tion for the generator and its electronic voltage regulator. It had to do with measuring. My dealership is going to pick up the bike for repair and I was told the service manager told the parts manager to order all of the voltage regulators she could get. An AC wiring decal is affixed to the inside of the louvered cover at the generator end. On a LM78xx series regulator that voltage is usually 1. We pride ourselves in offering the best sales, service and installation in the industry!. Internal voltage regulators also can fail from too much heat. There are two types of voltage regulators: linear and switching. It's usually stamped on the generator case, but may be very light, rusty, or painted over 16 times. Check your voltage levels at the battery and at the head lights at various RPMs. Most of the time failed alternator can be fixed by replacing cheap voltage regulator (i. Thus, it will cause the remanence voltage of generator is disappeared or less than normal remanence voltage value, namely, the remanence line voltage is less than 10V, the remanence phase voltage is less than 6V. The voltage regulator was a separate device and system all together. Back to generators - you don't say what 12V voltage regulator you have. Here are some common symptoms that hint towards having failing points and condenser: 1. Custom builder of High Amperage Alternators. Possible Symptom #2: headlight operates fine for a fixed period of time, then spontaneously blows the fuse. The boat should be ready if not Friday then Monday depending on the arrival of the part(s). What is so bad about a bi-national one-state solution to the. there is no in between. If you have plenty of AC volts coming out of the alternator and battery volts (less than 12. If you are using a regulator to power digital IC’s or opamps for example, the regulation requirement is often not a big concern and 5% is quite tolerable. GINE SPEED STABLE. A bad regulator will cause your battery not to charge. If one is bad do yourself a favor and swap out stator and voltage regulator. You may notice. Both batteries test good, alternator tests good, voltage regulator said it needed to be replaced. GENERATOWVOLTAGE REGULATOR TROUBLESHOOTING This section contains troubleshooting informa- tion for the generator and its electronic voltage regulator. Remember that when replacing the generator, it's a good idea to replace the regulator too. so all the regulator does is dump excess current to ground to keep the voltage in check. If the stator is going bad then the voltage gauge will show a charge when the bike is started when cold but as the bike warms up the voltage will slowly drop and stay around 10 volts on the gauge. DPE windings checked OK. Measuring the Input Voltage. Alternators are typically employed above 50KW. 2 volts, either the smoke has been let out of the regulator or there is an out of spec load. I have also had starter generator checked out, and its okay. there is no in between. They are different parts. I imagine that there is some device that monitors the battery condition to prevent overcharging. Remove the grounding of the green wire from the voltage regulator to the starter generator. To test a capacitor, it must first be removed from the generator and discharged. 5 volts than specs at that test point to replace the voltage regulator. Some fixes are given below. It can be confusing trying to determine if yours is working or not. Edit : Upon reading more closely you may have a bad diode in the alternator. If you are not getting these numbers, you might have a faulty voltage regulator.